Everyone in advertising talks about CTV, but only a handful of platforms are built around actually understanding it.

Key Highlights

• The best CTV advertising platforms specialize in quality inventory, real measurement, and a premium viewing experience, not just streaming reach
• CTV is non-clickable, so measurement and attribution separate genuine specialists from generalists bolting on a video line item
• We highlight eight platforms that treat connected TV (CTV) as real TV, including our own Ichiro platform and partners we work with
• Curation, transparent supply, and outcome measurement matter more than raw scale when you evaluate CTV platforms
• The right platform depends on whether you want a managed partner, a self-serve DSP, or a sell-side curation layer

Here are the CTV advertising platforms that understand the channel’s nuances and help brands and agencies deliver on its promise.

What Makes the Best CTV Advertising Platforms CTV-Focused

Plenty of platforms sell CTV, but far fewer are built for it.

Search for the best CTV ad platforms and you will find plenty of generalists. The ones that stand out get the details right: where inventory comes from, how performance is measured on a screen no one clicks, and whether the experience feels like real television.

Spend is pouring in, which raises the stakes. CTV grew 16% year over year in 2024 by the IAB’s count; eMarketer projects US CTV ad spend near $38 billion in 2026, and CTV upfront commitments passed primetime linear for the first time that year.

A CTV-focused platform earns the label on three fronts:

• Quality inventory: direct or curated access to premium streaming supply, not remnant impressions bundled blind
• Real measurement: attribution built for a non-clickable channel, from incrementality testing to outcome tracking
• Viewing experience: ad formats and frequency that respect the living-room screen and keep CTV feeling like TV

Score any platform against those three and the marketing gloss falls away. Understanding how programmatic TV buying works and the difference between OTT and CTV helps too, since connected TV advertising platforms vary widely in how they source and measure supply.

Splash Bay Media (Ichiro)

Best for: curated, SSP-agnostic CTV supply and supply path optimization

We built our Ichiro platform for buyers who want premium CTV inventory without the waste of blind open-auction bidding.

Our Ichiro platform is a sell-side decisioning layer that packages premium connected TV supply into curated private marketplace (PMP) deals before it reaches your demand-side platform (DSP). It is SSP-agnostic, aggregating data from 10-plus supply-side platforms (SSPs) and enriching bid requests so your buys land on quality inventory, including live sports and political packages. For agency traders and DSP managers, that means transparent supply, cleaner data, and fewer wasted paths, the heart of supply path optimization.

Keynes Digital

Best for: midsize and growth brands that want a high-touch CTV partner

Keynes Digital treats CTV as a true performance channel for brands that lack the resources to navigate it alone.

It pairs AI-driven optimization with a hands-on services layer, giving midsize and growth advertisers access to premium streaming inventory through preferred partners. Because CTV is non-clickable, Keynes leans into transparent measurement, tracking streaming’s impact on total business metrics rather than surface impressions. For brands that want a managed partner instead of a self-serve dashboard, it removes much of the channel’s complexity while keeping reporting clear.

Marketing Architects

Best for: performance-first TV buying at efficient CPMs

Marketing Architects is an all-inclusive TV agency that has spent more than two decades solving television’s pricing, measurement, and scale problems.

Its proprietary AI media-buying platform, Annika Streaming, grew out of a linear TV engine and buys premium CTV inventory at rates it positions below leading third-party DSPs. A capability it calls Smart Targeting buys media on the signals most predictive of engagement, rather than costly and often inaccurate third-party data. Advertisers get parallel measurement models, including IP tracking and holdout groups for incrementality.

Jamloop

Best for: agencies and SMBs running local, outcome-driven CTV

Jamloop is a DSP purpose-built for CTV, with a strong tilt toward local streaming campaigns across the US.

It offers ZIP-level targeting and tens of thousands of audience segments, backed by direct relationships with hundreds of streaming app providers for curated premium inventory. Measurement ties ad exposure to real outcomes, from store visits to calls and conversions. With no minimum spend or forced bundles, it lets agencies and smaller advertisers treat programmatic CTV advertising as a measurable performance channel.

Amazon DSP

Best for: premium streaming inventory paired with retail data

Amazon DSP combines premium streaming supply with shopping signals no other platform can match.

Prime Video ads reach a large ad-supported audience, and Amazon unifies that inventory with Twitch, Fire TV, and Freevee, plus premium third-party publishers. Amazon Marketing Cloud handles attribution, while first-party retail and streaming data sharpen targeting in ways that are hard to replicate. Available self-serve or managed, it suits performance and retail advertisers, with premium CPMs and an Amazon-centric data model as the trade-offs.

StackAdapt

Best for: multi-channel buyers who want CTV in one platform

StackAdapt is a multi-channel programmatic DSP that consistently ranks at the top of buyer satisfaction surveys.

It spans CTV, native, display, video, audio, in-game, and digital out-of-home, so teams can run connected TV alongside the rest of their mix in one interface. Premium inventory comes through top-tier publishers like Disney, Peacock, and Paramount, and the platform encourages advertisers to engage directly with publishers. Its machine learning and clean interface make it a strong fit for mid-market brands and agencies.

Magnite

Best for: sell-side access to premium streaming supply

Magnite is the largest independent supply-side platform, with unusually broad streaming reach.

Its SpringServe video platform combines an ad server with the Magnite Streaming SSP, and the company reports buyer connections to roughly 99% of US streaming supply, a dollar-weighted figure from Jounce Media’s 2025 benchmarking. ClearLine adds curation and deal management for buyers who want to work closer to the sell side. It is publisher-first by design, so it fits buyers and publishers who want direct relationships with premium streaming inventory.

PubMatic

Best for: transparent, curated omnichannel supply including CTV

PubMatic is an independent sell-side platform with a strong focus on transparency and supply path efficiency.

Its Activate product lets buyers curate premium inventory and build supply-side deals across omnichannel formats, including connected TV. CTV has been one of its fastest-growing areas, reflecting the shift of premium streaming budgets toward curated, transparent paths. For agencies and DSP managers who care where impressions come from, it offers a sell-side route to quality CTV supply.

The Bottom Line

The best CTV advertising platforms are the ones that treat connected TV as real television, not a video checkbox.

That shows up in curated, premium inventory, measurement built for a non-clickable screen, and a viewing experience that keeps audiences engaged. Whether you need a managed partner, a self-serve DSP, or a sell-side curation layer, match the platform to how you actually buy and what you need to prove. If you want to see how curation and bid enrichment change what your CTV data is telling you, book a meeting with our team, or start with setting clear CTV campaign goals.

Frequently Asked Questions

What are the best CTV advertising platforms?

The best CTV advertising platforms combine premium inventory, measurement built for a non-clickable channel, and a strong viewing experience. This list highlights eight, including our Ichiro platform, Keynes Digital, Marketing Architects, Jamloop, Amazon DSP, StackAdapt, Magnite, and PubMatic. The right pick depends on whether you want a managed partner, a self-serve DSP, or a sell-side curation layer.

What makes a CTV advertising platform different from a regular DSP?

A general DSP buys across many channels, while a CTV-focused platform is built around the nuances of streaming: sourcing premium inventory, measuring a screen no one clicks, and protecting the viewing experience. Some platforms here are dedicated CTV specialists, others are curation layers or SSPs, but each treats connected TV as a priority rather than an afterthought.

How do you measure CTV advertising performance?

Because CTV is non-clickable, measurement relies on methods like incrementality testing, holdout groups, IP-based attribution, and outcome tracking that ties ad exposure to store visits, conversions, or sales. Strong CTV advertising platforms build these models in rather than reporting impressions alone, so brands and agencies can prove that streaming spend drives real business results.