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Marketing AdvertisingTop 10 Best Programmatic Ad Tech Services of 2026
Editorial roundup comparing programmatic ad tech providers like Merkle, OMD, and Jellyfish, with tradeoffs for ad ops, agencies, and media teams.
How we ranked these tools
Vendors set the topic, but our editors set the inclusion criteria and the evaluation framework before research starts.
Search agents gather the source set and the review record, including transcriptions of video reviews and podcasts.
Framework: Features 40% · Ease 30% · Value 30%
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Merkle is the best pick for teams that want controlled programmatic execution because its API-driven setup and operational governance standardize ad ops across markets and reporting layers, whereas Epsilon fits agency and enterprise groups that need integrated audience activation with workflow guardrails for safer campaign changes.
Editor’s top 3 picks
Three quick recommendations before you dive into the full comparison below — each one leads on a different dimension.
Merkle
Campaign configuration and operational governance workflows that standardize ad ops across markets and reporting layers.
Best for: Fits when teams need controlled programmatic execution with API-driven integration and managed governance.
OMD
Editor pickManaged trading execution coordinated with planning and measurement workflows inside an agency operating model.
Best for: Fits when agency-managed programmatic execution and operational governance matter more than self-serve API control.
Jellyfish
Editor pickCampaign ops governance with controlled stakeholder access and documented operational change trails during optimization cycles.
Best for: Fits when mid-market teams need managed programmatic operations with strong governance and consistent measurement.
Comparison Table
Merkle
agencyPerformance marketing agency offering programmatic media and ad tech integration.
Campaign configuration and operational governance workflows that standardize ad ops across markets and reporting layers.
Merkle fits teams that need managed programmatic operations with an API surface used to connect campaign setup, audience activation, and reporting to internal systems. The delivery model is built around repeatable configuration and operational checks that reduce variance across markets and publishers. This approach is a fit for organizations with existing DSP or SSP relationships that require consistent ad ops execution rather than experimentation-only workflows.
A tradeoff is that deeper governance usually increases coordination overhead versus lightweight self-serve tools. Merkle works best when operational ownership is clear and change control is required for viewability reporting, brand safety settings, and trafficking rules across web and video campaigns.
- +Integration-focused API workflows for programmatic setup and reporting linkage
- +Operational governance for multi-market trafficking consistency
- +Automation support for recurring audience and campaign management tasks
- –Governance depth can slow rapid iteration cycles
- –Best outcomes require active ad ops participation and clear change ownership
Advertising operations teams
Standardize trafficking rules across markets
Lower variance and fewer incidents
Marketing analytics teams
Centralize reporting into internal systems
Faster reconciliation cycles
Show 1 more scenario
Programmatic media teams
Operationalize audience activation workflows
More consistent activation
Automation patterns support recurring audience and campaign management without manual rework each launch.
Best for: Fits when teams need controlled programmatic execution with API-driven integration and managed governance.
OMD
agencyMedia agency delivering programmatic media services and ad tech consulting.
Managed trading execution coordinated with planning and measurement workflows inside an agency operating model.
OMD’s engagement model fits buyers that need hands-on ad ops execution aligned to agency planning and reporting cycles. The service focuses on operational processes such as inventory and deal selection, trafficking workflows, and performance monitoring across multiple ad formats. For automation and integration, it is oriented around campaign-level setup and ongoing optimization rather than an exposed self-serve API-first product for every function.
A key tradeoff is reduced suitability for teams that require a developer-first automation surface for real-time configuration changes without agency involvement. OMD works best when internal teams can provide campaign specs and identity or measurement requirements, while OMD handles trading operations and operational governance of delivery decisions. It also fits organizations that want a single coordinating partner across display, online video, and connected TV workflows.
- +Operational control across buying, trading execution, and reporting cycles
- +Deal and inventory selection handled within agency planning workflows
- +Cross-format execution support for display, online video, and connected TV
- +Governance oriented campaign management for consistent delivery decisions
- –Limited fit for teams needing full self-serve automation via APIs
- –Workflow timing depends on agency handoffs and internal campaign specs
- –Deep customization can require additional effort beyond baseline setup
- –Less visibility into low-level bidder behavior than pure technology vendors
Brand marketers and campaign leads
Run cross-channel programmatic with controlled delivery
More consistent campaign results
Ad operations teams
Standardize deal and trafficking workflows
Fewer execution errors
Show 2 more scenarios
Media strategy teams
Plan inventory strategy with trading oversight
Clearer optimization direction
OMD supports deal selection and buying configuration tied to media planning targets and reporting needs.
Data and analytics owners
Connect measurement requirements to trading
Better reporting traceability
OMD aligns campaign measurement and targeting setup with the execution workflows used in buying.
Best for: Fits when agency-managed programmatic execution and operational governance matter more than self-serve API control.
Jellyfish
agencyDigital marketing agency offering programmatic ad tech consulting and media services.
Campaign ops governance with controlled stakeholder access and documented operational change trails during optimization cycles.
Jellyfish runs as a programmatic ad tech services provider that pairs media operations with managed execution across buying and optimization workflows. Its core delivery centers on campaign integration, trafficking, measurement design, and operational automation for display, video, and connected TV.
Jellyfish emphasizes governance through controlled access for campaign stakeholders and auditability of operational changes during optimization cycles. Teams typically engage it to reduce ad ops workload while maintaining reporting consistency across channels and buying paths.
- +Managed programmatic execution reduces ad ops overhead for multichannel campaigns
- +Integration and trafficking support covers display, video, and connected TV workflows
- +Operational automation tightens feedback loops from performance data to changes
- +Governance controls support stakeholder access and change tracking
- –Deep customization depends on shared implementation scoping during onboarding
- –Automation depth varies by channel and requires active operational participation
- –API extensibility is oriented to services delivery rather than self-serve engineering
- –Advanced identity and measurement setups can require additional operational effort
Best for: Fits when mid-market teams need managed programmatic operations with strong governance and consistent measurement.
Epsilon
enterprise_vendorMarketing services company providing programmatic data and media activation.
Operational governance for campaign changes that ties audience-driven activation to measurable reporting views.
Epsilon delivers programmatic advertising capabilities that connect audience and measurement use cases to buying workflows across display and video inventory. The service emphasizes data and identity-driven activation and reporting to support campaign optimization rather than only bid execution.
- +Data-informed activation supports audience targeting and measurable optimization loops.
- +Operational workflow controls reduce errors during campaign changes across teams.
- +Integration options fit common ad ops and agency trading desk pipelines.
- +Reporting focus aligns campaign performance views with execution inputs.
- –Implementation depth can require internal coordination for timely launches.
- –Sandbox and test workflows are less straightforward than execution-first trading tools.
- –Advanced configuration breadth can be harder to manage without clear governance.
- –Some execution features depend on connected partners for inventory scale.
Best for: Fits when agencies or enterprise marketing teams need integrated audience activation plus controlled ad ops governance.
Croud
agencyDigital performance agency with dedicated programmatic media and ad tech services.
Operational campaign management that coordinates creative governance, trafficking checks, and reporting handoffs.
Croud is a programmatic ad tech service focused on managing complex campaigns across screens, with operational workflows built around trading execution and delivery reporting. The service typically emphasizes integration depth through partner connections and campaign setup support rather than a bare-bones UI for day-to-day trading.
- +Strong campaign operations support for multi-screen programmatic delivery
- +Practical workflow for creative and placement governance across campaigns
- +Partner-facing integration assistance for smoother launch timelines
- +Delivery and performance reporting structured for operational decisioning
- –More dependent on services engagement than pure self-serve trading
- –Limited visibility for advanced buyers who need full OpenRTB control
Best for: Fits when ad ops teams need service-led programmatic management across display, video, and CTV placements.
Mighty Hive
agencyProgrammatic solutions provider offering managed media services and data consulting.
Production-focused integration for CTV and video activation that ties trafficking, QA, and troubleshooting into the delivery workflow.
Mighty Hive focuses on building and operating programmatic advertising systems with tight engineering involvement rather than limiting work to media-buying workflows. The service emphasizes integration across advertising execution paths, including DSP and connected TV activation support for display and video placements.
- +Implementation teams work close to ad ops processes and production troubleshooting
- +Automation reduces manual trafficking and reporting effort across campaign lifecycles
- +CTV and OLV activation support fits teams running mixed device video plans
- +Extensive integration work supports consistent activation across buying channels
- –Heavier professional services involvement than self-serve DSP-centric setups
- –Governance needs clear internal ownership to avoid approval bottlenecks
- –Depth of analytics depends on what data feeds and instrumentation are provided
- –Complex account structures can slow iterative changes during live optimization
Best for: Fits when mid-market ad ops teams need managed integration across video and CTV execution paths.
MiQ
agencyGlobal programmatic media partner connecting data and technology for marketing campaigns.
MiQ’s CTV and OLV activation combines identity-aware targeting with optimization automation in ongoing managed operations.
MiQ combines programmatic buying across display, video, and CTV with execution support that emphasizes data-driven operations and managed delivery. It is built around integration with DSP and ad platform workflows, including identity-aware targeting and campaign automation for flighting, pacing, and optimization.
- +CTV and OLV activation workflows fit cross-channel programmatic operations
- +Automation of pacing and optimization reduces manual ad ops effort
- +Integration depth supports identity-aware targeting approaches
- +Operational reporting outputs support governance reviews and troubleshooting
- –Requires tighter campaign setup to avoid optimization drift
- –Sandboxing and change-management controls are not as self-serve as DSP-only stacks
- –Some workflow steps depend on services engagement for best results
- –Less suited to teams that need fully DIY self-serve activation only
Best for: Fits when ad ops teams need managed programmatic execution across video and CTV.
Carat
agencyMedia agency offering programmatic media buying and ad tech strategy.
Programmatic deal strategy execution coordinated through Carat’s managed trading and campaign operations workflow.
Carat operates as a programmatic ad tech service provider with a strong integration focus between agency trading operations and buyers' DSP workflows. Its core capability centers on deal strategy execution across display, video, and CTV inventory, coordinated through managed planning and activation processes rather than a self-serve console.
- +Managed setup work reduces internal lift for cross-channel programmatic campaigns
- +Deal execution support helps maintain consistent targeting and buying constraints
- +Operational handoffs are structured around campaign configuration and measurement needs
- +Reporting coordination supports attribution of outcomes back to campaign decisions
- –Limited visibility into low-level decisioning logic compared with self-serve DSPs
- –Configuration depth depends on engagement scope and internal stakeholder availability
- –Automation breadth may be narrower than tooling-first programmatic stacks
- –RBAC and audit log workflows are less prominent than in enterprise ad platforms
Best for: Fits when agencies or brand teams need managed programmatic execution with consistent governance.
Hearts & Science
agencyMedia agency using data and programmatic technology to optimize marketing outcomes.
Identity-led activation workflow couples audience decisions with execution and measurement so reporting and targeting stay consistent.
Hearts & Science supports managed programmatic execution where ad operations teams need consistent configuration across vendors and buying environments. It covers campaign setup, trafficking rules, and optimization loops that keep delivery aligned to briefs across display, online video, and CTV inventory. Identity-aware targeting and measurement practices reduce dependence on manual reconciliation between segments, creatives, and reporting cuts.
- +Managed execution reduces cross-tool configuration drift across buying environments
- +Identity-enabled targeting supports consistent audience reach and attribution cuts
- +Operational optimization cadence keeps delivery aligned with campaign constraints
- +Strong measurement focus supports clearer performance reporting workflows
- –Less suitable for teams that require fully self-serve programmatic activation
- –Governance and process documentation are needed to avoid change collisions
Performance marketing ops teams
Maintain consistent reach across video segments
Fewer reporting mismatches
Agency trading desk
Standardize DSP setups across clients
Reduced setup variance
Show 1 more scenario
CTV ad operations teams
Control delivery across device cohorts
More stable delivery
Hearts & Science manages campaign parameters and optimization to keep CTV performance aligned to goals.
Best for: Fits when ad ops teams need identity-aware targeting and managed execution across display, video, and CTV.
UM
agencyGlobal media agency offering programmatic media planning and buying.
Campaign configuration and execution controls are built for repeatable agency governance across deals and buying settings.
UM delivers programmatic ad tech via umww.com with a focus on integration into existing ad ops stacks and campaign workflows. The service centers on activation and reporting paths that agencies and media teams can wire into DSP and execution processes without forcing a full workflow replacement.
- +Integration-first delivery that fits agency trading desk workflows
- +Operational controls for consistent deal and execution configuration
- +Reporting paths designed around ad ops verification and optimization cycles
- +Automation oriented toward repeatable campaign setup across teams
- –Requires disciplined setup of campaign configuration conventions
- –Less suitable for teams that need frequent UI driven iteration
- –Workflow coverage can depend on how partners connect activation endpoints
- –Governance tooling needs clear internal ownership to avoid drift
Best for: Fits when agency or mid-market teams need controlled programmatic execution inside existing ops workflows.
Conclusion
After evaluating 10 programmatic ad tech, Merkle stands out as our overall top pick — it scored highest across our combined criteria of features, ease of use, and value, which is why it sits at #1 in the rankings above.
Use the comparison table and detailed reviews above to validate the fit against your own requirements before committing to a tool.
How to Choose the Right Programmatic Ad Tech
Programmatic ad tech buying decisions hinge on how execution, governance, and reporting connect across teams and channels. This guide covers Carat, Croud, Epsilon, Hearts & Science, Jellyfish, Merkle, Mighty Hive, MiQ, OMD, and UM, using provider-specific workflows as the basis for tradeoffs.
The provider set spans managed programmatic execution paths and integration-heavy configuration models. Readers can compare how each vendor handles stakeholder control, campaign change workflows, and the degree of API-driven setup for programmatic operations.
Programmatic Ad Tech services that connect buying, control, and delivery
Programmatic ad tech services coordinate automated ad buying and campaign delivery across channels like display, video, and connected TV, with governance layered on top of day-to-day operations. These services connect trading decisions, trafficking checks, and measurable reporting so campaign changes do not break attribution or audience logic.
Carat and OMD focus on managed execution aligned to agency operating workflows and operational handoffs, while Merkle emphasizes API-driven integration flows that standardize campaign setup and governance across markets. In practice, the differentiator is how deeply a vendor supports operational controls such as documented change trails, stakeholder access management, and the tooling model for configuration through APIs versus service-led execution.
Programmatic Ad Tech features that affect governance and operational control
Programmatic ad tech purchases succeed when the vendor connects operational governance to day-to-day campaign execution, not just reporting output. Carat and OMD both coordinate managed execution with agency or brand operating handoffs, so campaign changes land inside the same workflow that produces trading and measurement artifacts.
Teams should also compare how vendors structure operational change, because auditability fails when stakeholder access, approval chains, and change trails live outside the campaign system. Jellyfish and Merkle emphasize operational governance for stakeholder control and documented operational change trails, while Croud centers campaign operations workflow for creative and trafficking governance across display, video, and CTV.
Change management tied to campaign operations
Jellyfish runs campaign ops governance with controlled stakeholder access and documented operational change trails during optimization cycles. Croud coordinates operational campaign management that covers creative governance, trafficking checks, and reporting handoffs across display, video, and CTV.
API-driven provisioning for programmatic setup and reporting linkage
Merkle provides integration-focused API workflows for programmatic setup and reporting linkage plus operational governance for multi-market trafficking consistency. Carat supports managed deal execution through a workflow model, but teams needing API-driven configuration depth should compare it to Merkle’s integration-first approach.
Identity and audience logic alignment across activation and measurement
Hearts & Science uses an identity-led activation workflow so audience decisions stay consistent through execution and measurement. Epsilon ties audience-driven activation to measurable reporting views via operational workflow controls that reduce errors during campaign changes across teams.
Channel-specific execution paths for video and CTV
Mighty Hive focuses on production-oriented integration for CTV and video activation that ties trafficking, QA, and troubleshooting into the delivery workflow. MiQ combines identity-aware targeting with optimization automation in ongoing managed operations across CTV and OLV.
Agency operating model alignment for trading and reporting cycles
OMD coordinates managed trading execution with planning and measurement workflows inside an agency operating model. Carat similarly supports managed execution with consistent governance through campaign operations workflow, which can reduce internal lift for cross-channel programmatic campaigns.
Programmatic Ad Tech selection framework for governance, integration, and automation fit
A programmatic ad tech selection should start with the execution governance model the organization can sustain. Carat and OMD handle managed execution aligned to agency or brand operating workflows, while Merkle and Jellyfish push operational governance closer to campaign configuration so ad ops can standardize change ownership across markets.
The next decision is how much automation and API surface the team needs for provisioning versus how much services delivery can carry. Croud and Mighty Hive lean into operations-led campaign management and close production troubleshooting, while Merkle’s integration-first governance and Hearts & Science’s identity-led workflow require tighter coordination to avoid change collisions.
Map stakeholder access and approvals to the system that executes changes
Choose Jellyfish when governance requires controlled stakeholder access plus documented operational change trails tied to optimization cycles. Choose Merkle when governance needs standardization across markets with operational workflows that support repeatable ad ops configuration and reporting linkage.
Decide whether the workflow belongs in a service-led execution layer or an API-led configuration layer
Choose Carat or OMD when the organization wants coordinated managed execution that follows planning, trafficking, and reporting handoffs inside an agency operating model. Choose Merkle when the organization needs integration-focused API workflows for programmatic setup and reporting linkage instead of relying on services engagement for every operational change.
Validate how audience decisions stay consistent through activation and reporting
Choose Hearts & Science when identity-aware targeting must remain consistent from audience decisions through execution and measurement. Choose Epsilon when audience-driven activation needs operational workflow controls that tie campaign changes to measurable reporting views.
Stress test video and CTV delivery ownership across trafficking, QA, and troubleshooting
Choose Mighty Hive when video and CTV operations require production-focused integration that folds trafficking, QA, and troubleshooting into the delivery workflow. Choose MiQ when the priority is managed CTV and OLV execution with optimization automation that reduces manual ad ops effort.
Confirm operational change cadence and internal availability for implementation depth
Choose Epsilon, Merkle, or Hearts & Science when teams can coordinate implementation timing and process documentation so operational controls do not slow launches. Choose Croud or Jellyfish when services-led coordination can carry governance work, but confirm access and control needs match the limited low-level decisioning visibility in service-driven workflows.
Who benefits from Programmatic Ad Tech services built around governance and operational control
Ad ops teams benefit most when the vendor connects campaign changes to governance artifacts that prevent reporting drift and targeting inconsistencies. Jellyfish and Merkle fit when governance must include stakeholder control and operational change ownership, while Hearts & Science and Epsilon fit when identity and audience logic must remain consistent through measurement.
Agencies and brand teams also benefit when the programmatic workflow matches their operating model and reduces cross-team handoff failure. OMD and Carat support managed execution aligned to agency planning and operational handoffs, while Croud and Mighty Hive provide service-led campaign operations support for display, video, and CTV delivery workflows.
Agencies running an internal trading desk operating model
OMD coordinates managed trading execution with planning and measurement workflows inside the agency operating model, which matches agency handoffs. Carat similarly coordinates deal strategy execution through managed trading and campaign operations workflow to reduce internal lift across channels.
Enterprise marketing teams that need controlled campaign changes across teams
Jellyfish provides campaign ops governance with controlled stakeholder access and documented operational change trails during optimization cycles. Epsilon ties audience-driven activation to measurable reporting views with operational workflow controls that reduce errors during campaign changes.
Ad ops teams that rely on identity-aware targeting and consistent attribution logic
Hearts & Science couples identity-led activation with execution and measurement so reporting and targeting stay consistent. MiQ adds identity-aware targeting with optimization automation across CTV and OLV to keep optimization aligned to identity logic.
Mid-market teams focused on video and CTV operations ownership
Mighty Hive ties trafficking, QA, and troubleshooting into the CTV and video delivery workflow to keep delivery issues inside the operational process. Croud supports service-led programmatic management across display, video, and CTV with creative governance and trafficking checks.
Common pitfalls when buying Programmatic Ad Tech services for execution and governance
Buyers often assume that governance lives only in dashboards, but governance failures show up when campaign changes bypass the workflow that controls stakeholder access and change trails. Jellyfish emphasizes documented operational change trails, and Merkle standardizes operational governance across markets, which reduces those failure modes when teams actually route changes through the system.
Another common mistake is underestimating implementation cadence and coordination requirements, especially when automation depends on consistent setup conventions or identity logic. Hearts & Science and Epsilon require process documentation and internal coordination so audience logic and measurable reporting stay aligned during campaign changes.
Selecting based on reporting outputs without verifying who controls campaign changes
Jellyfish and Merkle connect governance to operational change workflows, while Croud focuses on campaign operations coordination for creative governance and trafficking checks. Confirm stakeholder access and change trail requirements align with the workflow that executes updates, not just the reporting view.
Treating identity-aware targeting as a one-time setup instead of an ongoing workflow constraint
Hearts & Science couples identity decisions to execution and measurement, which requires governance documentation to prevent change collisions. Epsilon ties audience-driven activation to measurable reporting views, so campaign change processes must be consistent across teams.
Assuming video and CTV delivery issues will be handled by the same operational model as display
Mighty Hive builds production-focused integration that includes trafficking, QA, and troubleshooting inside video and CTV delivery. MiQ adds optimization automation for CTV and OLV, so buyers should validate how change management and sandboxing support safe iteration versus ongoing optimization.
Over-funding self-serve API ambitions when the organization expects service-led coordination
Merkle’s integration-first API workflows fit teams that can sustain API provisioning and internal ownership during governance cycles. Carat, OMD, and Croud carry more of the operational execution burden through managed workflow and services engagement, so the internal operating model should match that delivery shape.
How analysts built this shortlist
Analysts pulled information from the original provider materials and copied each relevant figure that appeared in the passages describing programmatic operations, governance, or integration behavior. Analysts then compared each figure with official documentation, changelog entries, and cited third-party reviews where those reviews were referenced.
Analysts kept figures when they matched the documentation and the changelog language. Analysts included published benchmark figures only when a benchmark was explicitly cited as the source.
Frequently Asked Questions About Programmatic Ad Tech
How do Merkle and Epsilon handle API-first integrations for campaign setup and reporting data flows?
When do agency trading desk models like OMD and Carat fit better than self-serve automation?
Which providers support secure access controls and auditable change histories for ad operations teams?
What breaks if identity resolution workflows are handled inconsistently across display and CTV?
How do Croud and Mighty Hive differ in their approach to onboarding for complex multi-screen operations?
How do data migration and campaign schema mapping get handled when moving between buying environments?
What tradeoff appears when teams need developer-first automation versus service-layer managed workflows like MiQ?
How do security and operational governance show up in configuration provisioning and RBAC workflows?
Where does automation help most, and where does it still require human governance during optimization cycles?
Tools reviewed
Primary sources checked during evaluation.
Referenced in the comparison table and product reviews above.
Funding and competing interests
This study was co-funded by several of the vendors assessed in it. No single vendor funded it. Funders could propose the market studied.
They had no role in selecting vendors, setting or weighting criteria, analysing data or drawing conclusions, and they received the same factual-accuracy check as every other vendor assessed.
Market definition, inclusion rules and criteria weights were fixed by an editor before research began and did not change afterwards. Editorial process →
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