Top Display & Video 360 Implementation Partners in the USA

Supply is still dominated by media agencies and their holding groups, but seat ownership and fee transparency are quietly redrawing who buys what.

Display and Video 360 is sold in the United States mainly by companies whose economics were built around media, which makes the supplier market unlike anything else in the Google stack. The large holding groups retain the bulk of national advertiser spend and buy through centralized trading operations. Around them sits a growing set of independent programmatic shops, a handful of consultancies advising on the commercial structure rather than running the buying, and a rising number of advertisers who have taken the seat themselves and buy only support. What separates these camps is not their access to inventory, which is broadly the same, but what they do with the margin between what you pay and what the media costs. That question now drives most US partner searches for this product.

How This Ranking Works

Positions cannot be bought. Order follows documented Display & Video 360 evidence for firms delivering in the US.

The Top Display & Video 360 Partners in the USA

01 Deloitte Digital

Certified Company · 5,000+ employees · HQ in New York, United States.
02 Merkle

Sales Partner · 5,000+ employees · HQ in Columbia, United States.
03 Publicis Sapient

Certified Company · 5,000+ employees · HQ in Boston, United States.
04 Valtech

Certified Company · 5,000+ employees · HQ in London, United Kingdom.
05 Bounteous

Sales Partner · 1,001–5,000 employees · HQ in Chicago, United States.
06 DWAO

Sales Partner · 201–500 employees · HQ in New York, United States.
07 Acxiom Limited

Sales Partner · HQ in London, Great Britain.
08 Adlucent

Certified Company · HQ in United States.
09 Adswerve

Sales Partner · HQ in Denver, United States.
10 Assembly Global

Sales Partner · HQ in United States.

See all 53 US Display & Video 360 partners in the filtered directory , or compare your shortlist side by side .

Three supply camps, three different business models

Holding company trading desks are the incumbent supply. They have scale, negotiated platform terms, established supply relationships and enough volume to justify dedicated engineering. Their model historically depended on aggregated buying and undisclosed margin, and although most now offer disclosed structures to large clients, the pricing conversation still starts from a different place than with an independent. They are strongest where programmatic has to coordinate with television, retail media and everything else the group already handles.

Independent programmatic agencies, typically twenty to two hundred people, have taken real share of US mid-market and challenger-brand spend. Their pitch is disclosed fees, a dedicated trading pod and faster decisions; they cannot match holding-group scale in supply negotiations, but the same trader stays on the account for years. The third camp barely existed a decade ago: firms that support an advertiser's own seat rather than trading on their behalf. Their revenue is fees for people and process rather than a share of media, which removes the conflict and changes what they optimize for. It is the fastest-growing part of US supply and the hardest to rank, because the deliverable is capability inside your company.

Seat ownership is the decision that reorganises everything else

Whoever holds the DV360 seat holds the contract with Google, the audience segments, the frequency history and the negotiated platform terms. In the United States the default for decades was that the agency held it, and for most advertisers it still does. But the number of American brands taking the seat onto their own paper has risen steadily, driven less by cost than by the discovery, usually during a review, that switching partners meant leaving years of accumulated buying data behind.

That single decision determines which suppliers are even relevant to you. If the agency holds the seat you are buying a managed service, and the pool is essentially the media agency market. If you hold it you are buying labour and expertise, and a different set of firms becomes available, including small specialist teams that could never win a full media assignment. Most US DV360 searches go wrong when this has not been settled first, because the two situations need different kinds of company and cannot be compared side by side.

Fee transparency and how US buyers now test it

The transparency debate in American programmatic has moved past whether margin exists and on to where it sits. The questions that now shape supplier selection are whether the fee is disclosed as a percentage of media or a flat amount, whether technology and data costs are marked up before reaching the invoice, and whether the advertiser can see actual platform spend rather than a blended number. A specialist audit industry has grown up in the US around answering exactly those questions.

The effect on supply is that firms have split into those who price openly and those whose model still depends on not doing so. Both remain in the market and both appear in rankings, because plenty of American advertisers care more about performance than structure. But the commercial conversation in a US DV360 pitch is now more likely to be about contract terms, audit rights and data ownership than about targeting capability, which reverses where it stood ten years ago.

Where US DV360 demand concentrates

National consumer brands with television budgets — the largest block of spend, buying connected television and video through DV360 alongside linear. Concentrated in New York, Chicago and Los Angeles, where the media agency business sits.
Retail and commerce advertisers — heavy seasonal demand, often coordinating DV360 with retail media networks bought separately. Minneapolis, Bentonville, Seattle and the New York apparel market are the recurring hubs.
Travel, hospitality and gaming — high-frequency, promotion-driven buying concentrated in Las Vegas, Orlando and Miami. These advertisers buy trading expertise rather than strategic counsel.
Financial services and insurance — large budgets, slow procurement, and a preference for suppliers who can pass a compliance review. New York, Charlotte, Hartford and the Bay Area fintech cluster.
Mid-market challengers spending roughly two to twenty million a year — where independents win most often, because these advertisers can fund a real trading team but are too small to interest a holding group's senior staff.

Trader talent is the narrow part of the pipe

The scarce role is the experienced programmatic trader: someone who has run meaningful budget across enough cycles to know when a change in delivery is worth acting on and when it is noise. That skill is built almost entirely inside agencies and trading desks, takes years to develop, and is now pulled in two directions. In-house teams at large American advertisers recruit these people at salaries agencies struggle to match, and independents poach them with equity and better accounts.

The consequence is a gap between who pitches and who works on the business. Holding-group pitches are staffed by a thin layer of senior people spread across many accounts, while daily execution often sits with junior traders running several brands at once. Independents have fewer senior people but attach them to fewer accounts. Neither arrangement is inherently better, but the difference is real, and it is why two US suppliers quoting similar fees deliver visibly different quality of attention.

Commercial models and the bands they clear at

Percentage of media, fully managed — the dominant US model. Commonly 10 to 20 percent at mid-market volumes, compressing to roughly 5 to 10 percent once annual spend passes the eight-figure mark.
Flat monthly retainer against committed headcount — increasingly requested by advertisers who want fees to stop scaling with budget. Typically 15,000 to 60,000 dollars a month depending on how many traders and analysts are committed.
Support on the advertiser's own seat — usually 8,000 to 30,000 dollars a month for trading support, quality control and reporting while the brand holds the contract. The fastest-growing arrangement in the US.
Platform costs passed through — Google levies a platform fee on media, negotiated at seat level, alongside data and inventory costs. Whether these reach you at cost or with a markup is the most consequential detail in a DV360 contract.
Transition and enablement projects — one-off work to move a seat, rebuild account structure or train an internal team, typically 40,000 to 150,000 dollars over three to six months.

What the ranking above does and does not tell you

This list ranks demonstrated DV360 capability: trading headcount, spend under management, standing with Google, and evidence of work across video, connected television and display rather than one format. It cannot rank commercial structure, because fee arrangements are private and vary enormously between clients of the same firm. A supplier near the top may run a disclosed model with one advertiser and a very different one with another.

It also cannot tell you who will sit on your account, because the distance between a firm's best team and its median team is wide and the ranking reflects the former. Use it to identify which camp each supplier belongs to and whether that camp matches the seat arrangement you intend to have.

Frequently Asked Questions

Should my company or the agency hold the DV360 seat?

It depends on how much accumulated buying data matters to you and how likely you are to change agencies. If you hold the seat, audience segments, frequency history and negotiated terms stay with you through a review, and you can change suppliers without losing them. The cost is real: you take on the contract, the billing, and usually a headcount to manage it. American advertisers spending under a few million dollars a year on programmatic generally find agency-held seats simpler. Above that, the balance tips, which is why most large US in-housing moves start here.

Are holding company trading desks still the default for large US advertisers?

For national advertisers with television-scale budgets, yes, and that is unlikely to change soon, because programmatic rarely sits alone in those plans. What has changed is the terms. Large American clients now routinely negotiate disclosed fees, audit rights and data ownership provisions that would have been unusual a decade ago, and some have moved the seat onto their own contract while leaving execution with the same holding group. The incumbency has survived; the commercial arrangement underneath it has been substantially rewritten.

Do independent DV360 shops get the same inventory as the big groups?

Broadly yes. The platform is the same, the exchanges are the same, and access to open programmatic inventory is not gated by agency size. Where holding groups retain a genuine advantage is in negotiated commitments with large publishers and media owners, principal-based arrangements, and guaranteed connected television deals that depend on volume. If your plan leans heavily on premium video guarantees, that scale matters. If you are buying open-market display and video, the inventory argument is largely a pitch talking point.

What does in-housing programmatic actually mean in the US right now?

In practice it almost never means a brand doing everything alone. The common American pattern is a hybrid: the advertiser takes the seat, hires a small team of two to six people to own strategy and oversight, and retains an external partner for trading execution, quality control and overflow. Full in-housing, with all trading done internally, remains rare outside a handful of very large advertisers, because the staffing burden and the difficulty of retaining traders are consistently underestimated by companies attempting it.

Why do few US firms handle DV360 and CM360 equally well?

Because they are staffed by different people with different career paths. DV360 work is media buying, judged on performance and spend outcomes, and the people who do it are traders and planners. Ad server work is operations, judged on accuracy and throughput, and the people who do it come up through trafficking teams. Agencies that hold both usually run them as separate departments with separate leadership. When you see one supplier claiming equal strength in both, it is worth establishing which department the claim actually rests on.

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