Best Performance Max Agencies for Ecommerce (2026)

Any agency can create a Performance Max campaign. The setup takes about fifteen minutes and Google's own interface walks you through it.

The difference shows up three months later, in four places.

Brand cannibalisation. Left alone, PMax will happily spend a large share of your budget buying clicks from people typing your brand name, then report those sales as its own. The account looks like it is growing. Revenue does not move. Catching this needs a brand exclusion list and a campaign segmented so branded traffic sits somewhere you can see it.

Feed quality. On a Shopping heavy account the product feed is most of what PMax has to work with. Titles written for a warehouse database instead of a search query are a direct instruction to Google about who to show your products to, and it is the wrong instruction.

Asset groups and segmentation. One asset group covering an entire catalogue means one bid logic for a $19 product and a $600 one. Splitting by margin, velocity or custom label is the single most common structural fix on accounts I open.

Measurement. PMax optimises toward whatever you told it counts as a conversion. If Add to Cart is set as a primary action, or a purchase event fires twice, the campaign will chase that signal with total confidence and the reported ROAS will be fiction.

An agency worth its fee has an opinion on all four. If the pitch is that their automation handles it, ask which of the four the automation actually touches.

Most of this category does not publish pricing, which is normal for managed service work but does make comparison harder than it should be. Two of the eight put real numbers on a page. The rest want a call first.

ZATO has been managing Google Shopping since 2011, which means through Smart Shopping and out the other side into PMax. Founder Kirk Williams is one of the more cited voices on this campaign type, and the agency states its account managers average close to ten years of Shopping experience each.

Their position on PMax is stated plainly on their own site: informed scepticism plus active management, or in their words, they use automation but do not trust it unsupervised. In practice that means running Standard Shopping and Performance Max alongside each other rather than handing everything to one campaign, with query sculpting deciding which searches land where. They audit Merchant Center before they touch campaign structure.

Pricing is a flat month-to-month retainer scoped on account complexity instead of a percentage of ad spend, so growing your budget does not grow their invoice. Full management is aimed at brands spending $25,000 to $1,000,000 a month, and they run a lighter tier called ZATO Essentials for accounts below that.

Skip it if you want one agency handling Meta and Amazon too. ZATO is paid search only, deliberately.

This is my own consultancy, so weigh the placement accordingly. I am not the right answer for every account on this page and I am the only one here without a team behind me.

What I do own is the step before the restructure. The most common thing I find on a PMax account is not a bad campaign, it is a campaign optimising toward a number that was never real. Conversion actions counting the wrong event. A purchase firing on page load and again on the thank you page. Brand search sitting inside PMax and taking credit for revenue that was coming anyway. In every one of those cases the campaign is working exactly as instructed and the instruction is wrong, which is why rebuilding asset groups changes nothing.

Two free things exist for that, no email required. The PMax or Standard Shopping quiz asks eight questions about your account and tells you whether you are ready for Performance Max at all, with the reasoning behind the answer rather than a score. The Google Ads Audit Tool connects to a live account and runs 25 checks in under three minutes, covering conversion tracking, bidding, ad assets and campaign structure.

Paid work starts with a written audit at $800 plus a thirty minute call to go through it, and ongoing management is quoted per account for ecommerce brands spending $5,000 a month or more. Ten years of this, Google Partner certified, and I am the person on the account rather than the person who sold it. The results I lean on: an 18x scale on a luxury jewellery retailer with a 680% peak ROAS and 4.5x sustained, and 32% lower cost per booking with 2.1x the bookings for BookRetreats.

Skip it if your catalogue runs into six figures of SKUs and what you need is bidding throughput across thousands of products. Bidnamic or smec are built for that and I am not.

Bidnamic works only with ecommerce and pairs a managed service with its own bidding technology. The pitch on their PMax page is advanced campaign segmentation, so budget decisions happen at a level finer than one catch-all campaign, and you can see which part of the catalogue is absorbing spend.

The technology handles bids down to the individual SKU using purchase intent data, which is the part a human cannot do by hand across thousands of products. They also run a smart angle for large catalogues: an incremental campaign targeting only products that made no sales in the last 60 days, which is exactly the inventory PMax tends to ignore in favour of your existing best sellers.

Onboarding is a fifteen minute goals call, then a free account audit and diagnosis, then a proposal. They publish a free CSS as well, which sidesteps Google's Shopping commission. Their own published figures are a 99% average ROAS increase across clients and CPCs 39% lower, with case studies for Huel, Rab and LD Mountain Centre carrying their own numbers. Those are the agency's claims from their own site, not independently verified.

Skip it if you want published pricing before a call. Their pricing page is a positioning page, the number comes after the audit.

Smarter Ecommerce, usually written smec, is an Austrian company that sells software first and agency services alongside it. Their Campaign Orchestrator exists specifically to give advertisers back some control over Performance Max and Standard Shopping.

The interesting part is what it plugs into. Rather than optimising on Google's view of your account, it pulls in your inventory feed, your GA4 or SA360 performance data, and first-party business metrics like product margin, stock level and customer lifetime value, then uses those to weight what the campaign pushes. If you have ever wanted PMax to stop scaling a product you make no money on, this is the category of tool that addresses it. Their March 2026 release added further PMax and Standard Shopping controls plus a feed composition dashboard.

They are a Google Premier Partner and sell through a demo, with no pricing published anywhere on the site.

Skip it if nobody internally will use the platform. A control layer is only worth paying for if someone opens it, which is the same trap as buying feed management software nobody logs into.

AdVenture Media runs ecommerce accounts across Google Shopping, Performance Max, Meta and Amazon, with offices in New York, Philadelphia and Fort Lauderdale. They have built their own platform, Sherpa, doing change driver analysis, creative fatigue scoring and holdout-based incrementality testing.

Their stated stance on PMax is close to mine. They describe Performance Max and Advantage+ as black boxes that will spend your budget on audiences that do not convert, and use Sherpa to flag when PMax starts cannibalising brand traffic or optimising toward cheap conversions instead of profitable ones. They also say plainly that they fix measurement before touching bids, which is the right order and rarer than it should be.

Clients range from $15,000 a month in ad spend to over $2 million. They run a certification programme through the Modern Marketing Institute that includes a Performance Max track, and their founder wrote a book on advertising in an AI-driven market, both of which say something about how seriously they take the teaching side.

Skip it if Google is your only channel. You would be paying for coordination across platforms you do not use.

SavvyRevenue is Copenhagen based and takes ecommerce and DTC clients only. Andrew Lolk founded it in May 2017 after selling his shares in White Shark Media, a 150-person agency, and built the opposite kind of business on purpose.

Each specialist carries between two and five clients. That constraint is the whole model, and it is why they can work with brands spending anywhere from $10,000 to $1,000,000 a month without the account rotating through junior staff. They include performance clauses in every percentage-of-ad-spend agreement, review each account on a 90 day cycle, and publish their pricing structure openly, which almost nobody in this category does.

Andrew also publishes one of the more detailed PMax breakdowns in the industry on their blog, and lists his own email and phone number on the about page.

Skip it if you are a US brand wanting daily overlap with your own team. The centre of gravity is European retail, and the client list reflects it.

JumpFly has been running paid search since 2003, which makes it one of the longest surviving agencies in the category. They are a Google Premier Partner and hold Microsoft, Meta and Amazon partner status too, and they have since added SEO, paid social, email and ChatGPT advertising to the paid search core.

They lead with a free custom audit that a person walks you through rather than emails over, and they publish more than 150 client reviews across Clutch and Google. Their own monitoring technology watches campaigns around the clock and surfaces alerts, which matters on PMax more than on Search because there is less to look at manually.

One correction worth making, since several roundups get it wrong. JumpFly's old PPC pricing URL now redirects to their homepage and no pricing is published anywhere on the site. The percentage-of-spend tiers you will see quoted for them elsewhere could not be verified against their own pages, so treat those numbers as unconfirmed.

Skip it if Performance Max on a product feed is the whole job. This is a broad agency, and the specialists earlier on this list go deeper on Shopping specifically.

Third Marble Marketing has been working with small businesses out of Richmond, Virginia since 2009. They are a Google Premier Partner, they publish their price pages, and they run no contracts, all of which is unusual at the bottom of this market.

Their PMax page states a starting budget of $600 a month to add Performance Max to an existing account, and it is honest about the tradeoffs in a way most service pages are not. They list the limited transparency, the budget allocation risk, and the fact that it suits some businesses and not others. Their recommendation is to keep branded search or display running in parallel so PMax is not the only thing covering your brand, which is the right instinct.

They publish their own totals as well: over 1,600 accounts across the US, more than $11 million in Google Ads managed, and a 4.9 rating across 382 reviews.

Skip it if you are a large catalogue ecommerce brand. The centre of this business is local and lead generation, and Shopping feeds are not the specialty.

Three questions, in this order.

My honest read, having opened a lot of these accounts: the agency you choose matters less than whether a real person is steering the campaign. Performance Max punishes neglect quietly. It does not break, it just drifts toward whatever is cheapest for Google to convert, and the reporting stays green the whole time.

If you want the wider view, I compared the individual specialists in Best Google Ads Consultants for Ecommerce Brands, and the platforms that feed all of this in Best Google Shopping Feed Management Services.