How to Choose an Amazon Brand Management Agency (2026 Guide)

We've managed over 500 Amazon brands. Right now we have 52 active clients. I've seen what agencies do well and what they do badly — from the inside and from taking over accounts that previous agencies ran into the ground.

Most brands don't know how to evaluate an Amazon agency. They look at case studies, check a few reviews, and make a decision based on who gave the best pitch. Then six months later, sales are flat, the agency is sending pretty reports, and no one can explain why ACoS went up 12 points.

Here's how to actually evaluate an Amazon brand management agency.

The Problem With Most Amazon Agencies

First, understand the business model. Most agencies charge a management fee plus a percentage of ad spend. That structure creates a quiet conflict of interest: the agency earns more when you spend more on ads, not when your margins improve.

A $20K/month ad spend at 10% is $2,000/month in fees. A $40K/month ad spend is $4,000/month. The incentive is to keep the budget high and growing — which is fine when growth justifies it, and a problem when it doesn't.

That's not an accusation against every agency. It's a structural reality you need to understand before you sign anything.

The other common problem: Amazon is a specialization, but most agencies treat it like a general digital marketing channel. They have people who can run Google ads, manage Meta campaigns, and build Shopify sites — and one person who "knows Amazon." That one person is stretched thin, working across 30+ accounts, and unable to go deep on any of them.

5 Questions to Ask Before You Sign

1. Who actually works on my account — and how many accounts do they manage?

Not the senior person who pitched you. The person who will log into Seller Central every week. Ask to meet them. Ask how many accounts they're currently managing.

A competent Amazon account manager can handle 8-15 accounts well. Above that, coverage gets thin. If the answer is "our team works on your account" and no single person is named, that's a problem.

We keep our account managers to a ratio they can actually handle. 52 clients, distributed across a real team — not one person doing everything from PPC to case management to listing optimization simultaneously.

2. How do you handle PPC — percentage of spend, flat fee, or hybrid?

This tells you the incentive structure. Percentage of spend means the agency's revenue scales with your ad budget. Flat fee means they eat the cost if management takes longer. Hybrid can go either way.

Neither structure is automatically wrong, but you need to understand which one you're in. Then ask: what happens if we need to cut ad spend? Are you willing to do that?

3. What does a weekly update look like — and what triggers an alert?

Good agencies don't wait for weekly updates to surface problems. They have systems that flag anomalies the day they happen — a campaign suddenly overspending, a listing going suppressed, a competitor pricing down 40%.

Ask what their alert process is. If the answer is "we check reports weekly and send you a summary," that's reactive. By the time the weekly summary arrives, you've already lost days of revenue or burned through budget.

4. Can you show me a real account — before and after, with numbers?

Not a case study with "revenue increased significantly." An actual account with real metrics: ACoS before and after, organic rank changes, revenue trend, margin improvement. Anonymized is fine. But specific numbers should be there.

If they can't or won't show you real data, there's a reason.

5. What do you do when something isn't working?

This is the most important question and most agencies fumble it. The right answer involves some version of: "We test hypotheses, measure results, and adjust. If something's not working after 60 days, we change the approach and tell you why."

The wrong answer is defensiveness, vague talk about "Amazon's algorithm," or claiming results take 6-12 months to materialize when basic things like ad structure can show signal in weeks.

Red Flags in the Agency Sales Process

They lead with guarantees. No credible Amazon agency guarantees specific revenue outcomes. Amazon's algorithm changes. Competition moves. Seasonality is real. A guarantee is either a sign of inexperience or a sign that the pitch is optimized to close, not to set accurate expectations.

They can't explain why your account is underperforming. If you send over your current data and the agency responds with "we'll figure it out once we're in there" — that's not confidence, that's lack of rigor. A good agency should be able to look at your data and identify 3-5 issues before being hired. We do this as part of our free Amazon audit. If we can't identify problems upfront, we're not the right fit.

They want a 12-month contract immediately. Some agencies lock you into long contracts because they know results take time to show — and they want to make sure you're paying before you've had time to evaluate. A confident agency offers 90-day trials or shorter initial terms. The contract length should match the timeline for you to reasonably evaluate whether it's working.

They don't ask about your margins. Revenue is a vanity metric. If an agency isn't asking about your unit economics within the first conversation, they're optimizing for the wrong thing. Growing Amazon revenue by increasing ad spend to the point of margin destruction is not success.

They outsource the actual work offshore without telling you. Some agencies close business with US-based salespeople and deliver work through overseas contractors who rotate frequently and don't know your account. Ask directly: where is the team that will manage my account located, and what is their tenure at the company?

What a Good Amazon Agency Actually Does

Managed well, an Amazon brand management agency does several things simultaneously:

Catalog health. Listings optimized for conversion — not just keyword-stuffed, but actually structured to convert. Titles, bullets, A+ content, images, and backend terms aligned with what buyers are actually searching. This is foundational work that multiplies everything else.

PPC strategy and execution. Not just "running ads" but building a campaign structure that separates branded vs. non-branded traffic, defensive vs. offensive strategies, and top-of-funnel vs. retargeting plays. Good PPC requires constant testing and a clear logic for why every dollar is allocated where it is.

Inventory coordination. An Amazon brand that stockouts loses ranking. The agency needs to be in your supply chain conversations — not managing procurement, but flagging when inventory levels are creating risk and adjusting ad spend accordingly when stockouts are imminent.

Account health monitoring. Suppressed listings, policy violations, hijacker alerts, review anomalies — these need to be caught the day they happen. Not weekly. This is where the automation layer matters. We run nightly anomaly detection across all 52 accounts. Issues surface before they compound.

Strategic roadmap. Month-to-month tactics without a longer view gets you incremental results. The best agencies are thinking about where your brand sits in 12 months: which ASINs to build out, which categories to enter, how your brand should be positioned relative to competition. That requires someone with real Amazon experience, not just an account coordinator running reports.

How to Evaluate Results Once You've Started

Don't evaluate an agency on revenue alone. Revenue is downstream of too many variables — seasonality, inventory, platform changes, competition. Evaluate on the things they actually control:

ACoS and TACoS trends. These should improve or stay stable as the account matures, not drift up quietly. If TACoS is trending up and they can't explain why, something's wrong.

Organic rank trajectory. Amazon rewards velocity. A well-managed account should show improving organic rank on target keywords over 90 days. If PPC is running but organic rank is flat, you're renting visibility instead of building it.

Coverage vs. waste ratio. Pull your search term reports. How much spend is going to irrelevant terms? A well-structured campaign limits waste. If 30-40% of spend is on terms that convert at 2x the account average ACoS, the targeting hasn't been dialed in.

Response time on issues. Time a few test scenarios — a listing with an image that needs updating, a question about a campaign. How fast does the agency respond? How complete is the answer? Speed and quality of communication tells you how the account is actually being managed.

The Right Agency for the Right Stage

Not every agency fits every brand.

Early-stage brands (under $50K/month in Amazon revenue) often don't need — and can't afford — a full-service agency. They need someone who can set up the account correctly, run basic PPC, and get out of the way. Hourly consulting or fractional help often makes more sense at this stage.

Mid-market brands ($50K-$500K/month) are the sweet spot for a full-service agency relationship. Enough revenue to justify the management cost, enough complexity to benefit from dedicated expertise.

Larger brands ($500K+/month) have different needs — usually more integration with supply chain, finance, and product development. The agency relationship starts to look more like an embedded team than an external vendor.

We work primarily with brands in the mid-to-large range — brands where the Amazon channel is material to overall business performance and where real operational depth matters. If you want to understand where you fit and what kind of support would actually move the needle, start with a free audit — we'll look at the account and tell you honestly what we'd change and what it would take.

The Honest Answer

The best Amazon brand management agency is the one that treats your account like it's their own — that is obsessed with your margins, not just your top line, and that tells you when something isn't working before you notice it yourself.

That's harder to evaluate from a pitch call. Which is why the questions matter. Ask them, and pay close attention to the answers that are specific, the ones that are vague, and the ones that are dodged entirely.

If you're ready to have that conversation about your Amazon channel, here's how we work with brands — and what we look for in the accounts we take on.