Marketplace
The Best Amazon and Marketplace Agencies
Updated September 6, 2026 · 5 agencies · How we build these lists
The short answer
The best Amazon agency depends on whether Amazon is your main channel or one of several. Tinuiti is built for retail media at enterprise scale. Darkroom fits brands that need to know how much of Amazon's growth was actually caused by DTC advertising. Pilothouse runs Amazon through a dedicated in-house team alongside other channels. MuteSix extends across Walmart and Target as well. Top Growth Marketing adds Amazon DSP for mid-market Shopify brands.
Amazon breaks the measurement habits brands build on their own site. The purchase happens inside someone else's platform, the customer relationship stays with the marketplace, and advertising that runs elsewhere frequently drives sales that Amazon takes credit for. The agencies below differ mainly in whether they treat Amazon as a standalone channel or as one input into a shared allocation problem.
At a glance
| Agency | Best for |
|---|---|
| Tinuiti | Retail media at enterprise scale |
| Darkroom | Brands untangling how much Amazon growth came from DTC advertising |
| Pilothouse | Brands wanting a dedicated Amazon team inside a multi-channel agency |
| MuteSix | Brands selling across Amazon, Walmart, and Target |
| Top Growth Marketing | Mid-market Shopify brands adding Amazon DSP |
Agency profiles
Tinuiti
Best for retail media at enterprise scale
New York, NY
Tinuiti runs Amazon and commerce media as a core practice alongside streaming, search, and social, with named work including Carter's, DSW, and Blue Apron. Its Bliss Point platform targets the point of diminishing returns per channel, which is the relevant question once retail media is one of several paid lines.
Worth knowing: Built for scale. Smaller brands may not be the focus of the account team.
Darkroom
Best for brands untangling how much Amazon growth came from DTC advertising
New York, NY
Darkroom runs an in-house modeling platform aimed specifically at attributing growth across DTC, Amazon, TikTok Shop, and retail media, and states it manages to contribution profit. Named work includes Olipop, Everlane, and Cravings by Chrissy Teigen.
Pilothouse
Best for brands wanting a dedicated Amazon team inside a multi-channel agency
Victoria, BC
Pilothouse organizes into channel-specific in-house teams, with Amazon advertising as a named practice alongside Google, Meta, TikTok, and retention. It reports 500 or more DTC brands served and over $1B in attributable revenue.
MuteSix
Best for brands selling across Amazon, Walmart, and Target
Los Angeles, CA
MuteSix names Amazon, Walmart, and Target as its retail media coverage, and operates inside Dentsu's iProspect with the resource base that implies. Named work includes Healthy Spot and GreenPan.
Worth knowing: Ask about team continuity given post-acquisition restructuring.
Top Growth Marketing
Best for mid-market Shopify brands adding Amazon DSP
Los Angeles, CA
Top Growth Marketing lists Amazon DSP alongside Meta, Google, TikTok, Pinterest, and Snapchat for brands in the $100K to $25M range, and reports over $314M in managed ad spend since 2011.
What we compared
- Whether Amazon is run as a standalone practice or connected to DTC and retail media
- How the agency measures advertising that drives marketplace sales it cannot directly track
- Coverage of Walmart, Target, and other marketplaces where relevant
- Retail media and sponsored placement experience beyond basic sponsored products
- Creative and listing content capability, not just bid management
- Named client work at a comparable scale and category
Frequently asked questions
- How much does an Amazon marketing agency cost?
- Amazon agencies commonly price as a percentage of ad spend, a percentage of marketplace revenue, or a flat retainer, with retainers frequently starting around $3,000 to $5,000 per month. Revenue-share models can become expensive quickly for brands with large existing Amazon sales, so confirm whether the percentage applies to incremental revenue or total revenue.
- Should the same agency run Amazon and DTC?
- If your Amazon and DTC channels compete for the same customer, one team is usually better, because the allocation question between them is the hard part and it cannot be answered by two agencies each reporting their own channel favorably. If Amazon is a substantially separate business with its own catalog and margin structure, a specialist is defensible.
- What does Amazon advertising not tell you?
- Amazon's reporting attributes sales to Amazon ads, but a meaningful share of marketplace purchases are driven by advertising that ran somewhere else, most often paid social. Brands that judge Meta on its own reported ROAS while judging Amazon on Amazon's reported ROAS will consistently over-credit the marketplace and under-invest in the demand generation feeding it.