Amazon Advertising Agency: What They Do, What They Cost, and How to Evaluate One

Most brands evaluating an Amazon advertising agency ask the same two questions: what will they actually do, and what will it cost? The answers depend on what kind of agency you're talking to.

An agency that manages Sponsored Products campaigns is not the same as one that runs DSP, builds creative, handles listing optimization, and coordinates with your supply chain. Both call themselves Amazon agencies. The pricing models and results differ wildly.

This guide explains what happens inside an agency relationship: what the work looks like day to day, how agencies price their services, what separates strategic management from campaign execution, and when hiring one makes sense. Written from the perspective of an agency that's been managing Amazon accounts since 2012 and started as sellers before becoming a service provider.

What Does an Amazon Advertising Agency Actually Do?

The answer depends on the agency. Some run your ad campaigns. Others manage your entire Amazon presence: advertising, content, operations, brand protection. Here's what the work looks like in practice.

Campaign Management (Sponsored Products, Brands, Display)

At minimum, an Amazon ad agency builds and manages your Sponsored Products, Sponsored Brands, and Sponsored Display campaigns.

What that actually means:

• Keyword research: identifying search terms where your product should show up, analyzing competitor targeting, finding low-CPC opportunities before they get saturated.
• Campaign architecture: structuring campaigns by product line, match type, and goal (brand defense, category expansion, conquesting). Poor structure bleeds budget across campaigns that should be isolated.
• Bid management: adjusting bids based on conversion rates, ACoS targets, and inventory levels. Automating where it makes sense, manual overrides when automation misses context.
• Negative keyword management: filtering out search terms that burn budget without converting. This is unglamorous work that most brands skip until they've wasted thousands.
• Ad creative testing: rotating headlines, images, and video assets for Sponsored Brands. Most brands run the same creative for months because nobody's testing systematically.
• Placement optimization: deciding when to bid higher for top-of-search vs. rest-of-search vs. product pages. Placement strategy changes with product maturity and competitive intensity.

A PPC-only agency stops here. A performance-focused agency connects this work to the next layer.

Amazon DSP and Off-Amazon Retargeting

DSP (Demand-Side Platform) is Amazon's programmatic advertising tool. It reaches shoppers on and off Amazon with display ads, video, and streaming TV.

What DSP management includes:

• Audience building: targeting based on purchase behavior, browsing history, lifestyle signals, and competitor shopper overlap.
• Retargeting: showing ads to people who viewed your product but didn't buy, or bought once and might reorder.
• Prospecting: reaching new customers who match your ideal buyer profile but haven't seen your brand yet.
• Cross-device campaigns: following shoppers from mobile browsing to desktop checkout.
• OTT/streaming ads: running video campaigns on Fire TV, Freevee, and Prime Video (since Amazon added ads to Prime in early 2025).

DSP requires a different skill set than Sponsored Products. Most small agencies don't offer it. The ones that do often run generic audience templates instead of building custom strategies.

A DSP-capable agency should show you audience overlap analysis, explain why certain segments convert better, and tie DSP performance back to total Amazon sales (not just attributed clicks).

Listing Optimization and Creative Strategy

Advertising doesn't work if your listing is weak. The best agencies treat ads and content as connected systems.

What listing optimization looks like:

• Title, bullets, and description SEO: writing copy that ranks in organic search and converts traffic from ads.
• A+ Content (formerly Enhanced Brand Content): building comparison charts, lifestyle imagery, and feature callouts that increase conversion rates. Amazon reports 8% uplift from Basic A+ Content, 20% from Premium.
• Brand Story: the module that shows your brand narrative above the product description.
• Amazon Storefront design: a multi-page branded experience where you can showcase your full catalog.

Some agencies charge separately for content work. Others include it in full-service packages. The distinction matters when you're comparing proposals.

Amazon Marketing Cloud (AMC) and Advanced Analytics

AMC is Amazon's clean room for first-party data analysis. It lets you measure cross-channel attribution, build custom audience segments, and track customer journeys in ways the standard Advertising Console can't.

What AMC enables:

• Path-to-purchase analysis: seeing how shoppers interact with your ads across Sponsored Products, DSP, and organic before converting.
• Incrementality measurement: proving which campaigns actually drove new sales vs. which ones captured demand that would have converted anyway.
• Lookalike audience building: finding new customers who match your best buyers.
• Multi-touch attribution: crediting the right campaigns when a customer sees multiple ads before purchasing.

Most agencies don't use AMC because it requires SQL knowledge and data science skills. The ones that do have a material advantage in proving ROI and optimizing budget allocation.

If an agency says they "use AMC," ask to see a sample dashboard and explain what custom queries they run. Generic AMC usage is table stakes. Custom analysis is where the value is.

Strategic Account Management

Here's where the gap between "agency" and "partner" becomes real.

Task execution looks like this:

• Run the campaigns you specify
• Adjust bids based on performance
• Send monthly reports
• Answer questions when you ask

Strategic management looks like this:

• Identify new product opportunities based on search volume and competition gaps
• Recommend when to increase or decrease ad spend based on inventory levels and margin changes
• Monitor competitor activity and adjust strategy when a new brand enters your category
• Connect advertising performance to broader business goals (revenue targets, margin requirements, market share growth)
• Own the P&L conversation, not just the advertising metrics

Most agency disappointments happen because a brand expected strategic management but paid for task execution.

How Much Does an Amazon Advertising Agency Cost?

Pricing models vary widely. Here's what you'll actually see when evaluating agencies.

The misalignment problem with percentage-of-spend pricing:

You want profitable growth. The agency wants higher spend. These goals align when there's room to scale. They diverge when you hit diminishing returns.

Example: Brand spends $20K/month at 25% ACoS with a 15% agency fee ($3K/month). Agency recommends increasing to $40K/month. ACoS climbs to 45%. Your profitability tanks. The agency's fee doubles to $6K/month. Was that good advice?

What's the Right Price?

Price ranges mean nothing without context. A $3,000/month PPC-only agency and a $15,000/month full-service agency are different products.

Benchmarks from WebFX (2026 data):

• Small business: $9,000–$15,000/month for full Amazon marketing
• Midsize: $15,000–$35,000/month
• Enterprise: $35,000–$60,000+/month
• Amazon SEO only: $1,350–$4,775/month
• Amazon PPC only: $975–$4,500+/month

The question isn't "how much?" It's "what am I getting?"

Four Types of Amazon Advertising Agencies

Not all agencies do the same work. Match your needs to the right category.

When Does Hiring an Amazon Advertising Agency Make Sense?

You need an agency if:

• Your ad spend is $10K+/month and you don't have someone managing it full-time. The opportunity cost of suboptimal campaign management exceeds the agency fee.
• Your ACoS is above 40% and you don't know why. An experienced agency can audit your account, find the waste, and restructure campaigns in 30–60 days.
• You're launching new products and need coordinated advertising, content, and inventory planning.
• Your internal team is managing ads alongside 10 other responsibilities. Advertising gets neglected when it's not someone's primary focus.

You don't need an agency if:

• Your ad spend is under $5K/month. Most agencies won't take accounts this small, and if they do, the economics don't make sense. Manage it in-house or use Amazon's AI Ads Agent for basic automation.
• You have a dedicated, experienced advertising manager in-house and the budget to hire specialists for DSP, creative, and analytics.
• You're okay with slower growth. In-house management can work if you're willing to learn through trial and error and don't need rapid scaling.

What your team should still own even with an agency:

• Inventory planning and restock timing
• Pricing strategy
• Product development and new launches
• Customer service and reviews management
• Brand voice and positioning

Agencies execute. You own the business.

What to Ask When Evaluating an Amazon Advertising Agency

Here are the specific questions that surface real differences between agencies.

About Their Experience

"How long have you been managing Amazon accounts, and have you ever sold on Amazon yourselves?"

Agencies that started as sellers understand unit economics, inventory constraints, and logistics timing. Agencies staffed by digital marketing generalists often miss this context.

"What's your average partner retention rate?"

High churn (below 70%) means the work doesn't sustain results beyond the initial setup phase. SupplyKick's 96% retention rate isn't an accident. It's proof that the work compounds over time.

"Can you share case studies from brands similar to ours?"

Look for specifics: starting ACoS, ending ACoS, time frame, what changed. Generic "we grew sales 50%" claims without context are meaningless.

About Their Process

"What does the first 90 days look like?"

Good answer: Audit, strategy development, campaign restructure, baseline measurement, then optimization.

Bad answer: "We'll start seeing results in week 1." That means they're making changes before understanding your account.

"How often will we meet, and who will I talk to?"

Good answer: Weekly or biweekly calls with a dedicated account manager who knows your business.

Bad answer: Monthly emails from a rotating team of junior associates.

"What does your reporting include?"

Good answer: Access to the Advertising Console, AMC dashboards, search term reports, and a monthly summary that connects ad performance to business goals.

Bad answer: A monthly PDF with impressions, clicks, and ACoS.

About Pricing

"What's your pricing model, and what's included in the fee?"

If they charge a percentage of ad spend, ask: "What happens if we want to reduce spend because we're hitting diminishing returns?"

If they quote a flat fee, ask: "What scope changes would increase the price?"

"Do we own the account and data?"

You should have full access to your Advertising Console, AMC, and any dashboards they build. If an agency gates access, walk away.

About Their Capabilities

"Do you use Amazon Marketing Cloud? Can you show me a sample dashboard?"

If they say yes, ask for specifics. Custom AMC queries are a real differentiator. Generic AMC access is not.

"Do you manage DSP in-house or through a partner?"

Some agencies white-label DSP through third parties. Not inherently bad, but it means they have less control over strategy and execution.

"How do you handle creative production?"

Do they produce content in-house, outsource to freelancers, or expect you to provide assets?

Red Flags That Signal a Bad Amazon Advertising Agency

What Changed in 2026 (And Why It Matters)

Amazon's advertising platform has shifted significantly in the past 18 months. These changes affect what a good agency should be doing differently.

Amazon's AI Ads Agent (Launched November 2025)

Amazon's AI tool can create, manage, and adjust campaigns with minimal advertiser input. It handles bid adjustments, basic targeting, and budget pacing.

What this means: The floor for competent PPC management has risen. If an agency's primary value is bid adjustments and budget pacing, they're competing with free automation. Good agencies differentiate through strategic judgment: which products to push, when to scale or pull back, how to position against competitors, and how to coordinate advertising with content and inventory.

Amazon Marketing Cloud Expansion

AMC now offers broader first-party data capabilities, custom attribution models, and audience building.

What this means: Agencies that use AMC effectively can prove incrementality, build better targeting groups, and measure cross-channel impact. Agencies that ignore AMC are flying blind.

Sponsored TV and Streaming Ads

Amazon added ads to Prime Video in early 2025. Brands can now run video campaigns on Fire TV, Freevee, and Prime Video.

What this means: Upper-funnel video advertising is now part of the Amazon ad stack. Agencies that can't plan and execute video campaigns are missing a channel.

Performance+ Campaigns

Amazon's answer to Google's Performance Max. AI-optimized campaigns that reduce manual input.

What this means: Another automation tool that raises the floor but doesn't replace strategic management. The question is still: what should we advertise, to whom, and why?

Frequently Asked Questions