12 Best Performance Creative Agencies for E-commerce: Testing Systems, Output, and Media Feedback

Creative quality may be the biggest performance lever hiding in plain sight. Paul Dyson’s analysis of around 28,000 global campaigns found that creative quality could produce a 12x ROI multiplier, making it the biggest driver advertisers can directly control.

For e-commerce brands, that puts a lot of weight on what happens between one winning ad and the next. Hooks fatigue, formats peak, and yesterday’s top performer eventually gives way to a new angle. The best performance creative agencies build a system around that cycle, turning every round of paid media into clues for what to make next.

Here are 12 of the best performance creative agencies doing exactly that.

Top Performance Creative Agencies for E-commerce: Quick Overview

The table puts the three criteria side by side. "Not publicly stated" marks a gap in what the agency shares.

How We Ranked These Performance Creative Agencies

Each agency was judged on three criteria: how it tests (hypotheses, cadence, and rules for killing or scaling a concept), how much creative it ships, and how media results reach the next brief. To qualify, an agency also needed a named e-commerce client with a published result. We screened more than 25 agencies in October 2026, and 17 cleared that bar.

inBeat publishes this guide and is listed first as an editorial choice. The other eleven follow by how specifically each states the three criteria, with the freshness of the named result as the tiebreaker, and the twelve listed are the ones whose claims hold together best across their own pages. Results an agency reports about itself are attributed to it ("per ATTN"), and independent measurement is labeled as such.

The 12 Best Performance Creative Agencies for E-commerce

Entries run in ranking order, starting with inBeat as the editorial choice described above, and each one carries a named e-commerce result.

1. inBeat

At inBeat, we help e-commerce brands turn creator content into performance creative that can be tested, scaled, and improved through paid media. Our ad testing program combines creator production with structured testing around ROAS, CPA, and CAC, so each round of ads feeds the next.

For The Farmer’s Dog, we produced 70+ assets per month across 10+ channels while supporting $20M+ in annual ad spend. For Dashing Diva, ongoing creator testing helped cut CAC by 24% while ad spend doubled. We also coordinated 100+ creators across 17 countries for HelloFresh, helping lower global CPA by 20%.

2. ATTN Agency

ATTN runs the most specific testing playbook on this list. Per its March 2026 framework, every concept starts with a written hypothesis, active brands receive 6-12 new concepts per week, and each test runs 3 to 7 days before evaluation. Spend rules are explicit: a concept is cut when CPA runs 50% above target within 72 hours and scaled when CPA lands 20% below target with volume potential. Each batch splits 60% variations of proven winners, 30% new concepts built on successful frameworks, and 10% experiments.

For Grüns, ATTN reports 340% revenue growth, 4.2x blended ROAS, and a 38% CPA reduction, with dozens of ad concepts launched weekly across Meta, Google, and TikTok. Ask for the time period, since the page leaves it out.

3. Darkroom

Darkroom sells performance creative as a managed service and is the only agency of the twelve with posted rates: Performance Creative starts at $8,000 per month. Per Darkroom, it delivers 250 to 600 production-ready assets per cycle, with a new batch of static, motion, UGC, and AI formats every two weeks. Its paid media team optimizes on hypotheses, and media results flow back into creative in a daily loop.

For OLIPOP, Darkroom built the beverage brand's first national creative campaign. It became the brand's top-performing ad content across channels, with 3x revenue growth and 28% broader reach. The 3x figure covers the full campaign and its media, so it measures creative and distribution together.

4. Y'all

Y'all builds creative and media for DTC brands around one loop: hypothesis, production, testing, learning, repeat. Its designers, editors, and motion artists sit with media buyers, so every asset reflects the hooks, angles, and formats working in the client's account, and production runs on a monthly cadence.

For FlavCity, Y'all tested 15 distinct strategic angles with isolated variables and increased creative output 10x from the one or two ads a month the previous agency shipped. Dozens of ads reached 3x or higher ROAS, and several held 5x or more over months of spend. Most engagements start around $50K per month in ad spend, a media budget figure and separate from the agency fee. The case study lists no dates.

5. Loud Lion

Loud Lion works as a fractional CMO and growth team for Shopify brands doing $1M or more a year and spending $20K or more per month on Meta. Its creative testing matrix of angles, hooks, and formats is hypothesis-driven from customer research, and clients receive 50 to 200 static ads, video edits, and UGC depending on spend, with 150+ new assets a month at the top tier. The first batch launches within 7 to 14 days of onboarding, and the team iterates on live data, tying each creative back to store revenue.

For CRM Jewelers, a creator whitelisting program reached 6.1x ROAS with 70+ conversions, and revenue grew 289% across the first 60 days alongside an international expansion, with Meta spend running at $10K to $20K or more per day (June 2026). Loud Lion also cites 5,000+ creatives tested monthly, so ask which count applies to your account.

6. TubeScience

TubeScience is a Los Angeles performance video studio that splits the work in three: it makes the ads, the client's media team tests them in the client's own account, and the winners earn budget while misses cost the client nothing. It runs weekly creative sprints and uses models trained on ad-spend data to inform what it produces next.

For Kitsch, TubeScience reports launching 100+ creative variations per month across funnel stages, with a 126% increase in Meta spend and a 49% improvement in efficiency at scale. The case page gives no period. Prose received 1,000+ full-funnel creatives, and its 2025 thirty-day Meta lift test held creative constant while varying media strategy, so the 61% full-funnel outperformance reflects media setup.

7. BARK

BARK is a London paid media agency certified by Meta that merged with its creative arm, Aura Ads, in 2026. It runs a rapid test-and-learn approach on a proprietary testing framework, with a vetted network of 300+ creators and a modular design process that turns one winning concept into dozens of variations, tested in days. Per BARK, media insights shape creative direction while creative performance refines targeting.

For Colvin, an online florist, the team produced 1,000+ localized creative assets in five languages and reports a 64% lower CAC and a 19% higher conversion rate from paid channels (published 2023, no period stated). Free Soul grew new-customer revenue 400% year over year (published January 2025).

8. Brighter Click

Brighter Click publishes the clearest test rules on this list. In its August 2026 scaling framework, a winner must clear spend equal to three to four times the target CPA, new concepts enter a dedicated testing campaign in batches of two to four creatives per ad set, and learnings from testing and scaling campaigns feed the next round of creative briefs. Its analytics software tracks performance by creator, hook, and messaging angle, and the team works with a network of 525+ vetted creators.

For Great Wrap, a sustainability brand, revenue grew 993% in three months from a June 2021 start at an $8 AU average CPA on first purchases. For Haggard Pirate, first-quarter 2023 sales rose 216% year over year at a $38 average CPA. Both cases predate 2024.

9. Blue Wheel

Blue Wheel runs performance creative through five stages: strategic brief, concept and mockup, AI performance prediction, production and testing, and post-launch optimization. Before production, concepts pass through an AI creative engine that scores attention, engagement, and cognitive load. After launch, learnings feed directly into the next creative iteration. Blue Wheel reports producing dozens of assets per month across Amazon, Walmart, and DTC, a mix that fits brands selling on marketplace platforms as well as their own store.

For Jack Black, Edgewell's grooming brand, testing hundreds of pieces of creative and restructuring Meta ASC campaigns coincided with an 823% increase in paid social conversion rate. The case describes a multi-year partnership without dates.

10. The Graygency

The Graygency is a London paid social agency that caps each team at five clients. Every audience, placement, and asset goes through its "Test & Learn" engine, and its Creator-Science tool tracks which visuals, formats, and hooks resonate so the team can scale what performs. Typical turnaround is 7 to 10 working days from brief to delivery, with monthly packages for steady output.

For Form Nutrition, the team built assets around three thematic pillars, each with four messaging angles tested in a structured matrix, and reports 300% more creative tested, 40% year-over-year growth, and 25% new-market growth across five markets over roughly three years.

11. Pilothouse

Pilothouse treats creative as a performance lever that evolves with feedback from consumer behavior: concepts are built to test, and performance data fuels new iterations across messaging, hooks, and formats. It frames the loop as turning creative learnings into smarter media buys and media results into testable hypotheses.

For RUX, a sporting goods brand, the team aimed for one to two new creative batches each week, ran pilot tests on ad copy and creative angles, and reports a 111% increase in ROAS within three months. The calendar year is missing, so confirm the timing before leaning on the number.

12. Tinuiti

Tinuiti is a large multi-channel media agency (about 1,200 employees and $4.5 billion in media under management, per its September 2026 press release) that runs creative inside its Bliss Point marketing operating system, which connects audience, creative, media, and measurement. That month it launched a Meta Creative Health Dashboard that translates Meta's fatigue and diversification signals into spend-at-risk estimates and alerts.

A 14-day split test for OLLY Body (February 20 to March 5, 2026) ran the brand's existing ads against the same ads plus new AI-insight-informed assets. The top three new assets drew a 14.1% higher CTR than the top three existing ones, and the test cell delivered 12.4% lower CPMs and 9.7% more conversions, read at 95% confidence. Monthly asset volume is not publicly stated.

What a Performance Creative Testing System Looks Like

A testing system turns each creative batch into a decision. The loop that the stronger agencies above describe has five steps:

1. Write the hypothesis for each concept before production, including the audience and the reason it should win.
2. Ship a batch of distinct concepts on a fixed cadence.
3. Read results after a set window against a target CPA or new-customer CAC.
4. Cut and scale by rule, using thresholds agreed in advance.
5. Brief the next batch from the hooks, angles, and formats of the winners.

Meta's own guidance separates creative diversification from creative iteration: diversification means distinct concepts for different personas, while iteration means small edits to one concept, and ads that look alike are grouped as variations of one creative. For creative volume, that makes the number of distinct concepts the figure to ask for.

Measurement discipline decides which concepts count as winners. Platform ROAS, new-customer CAC, and contribution margin can rank the same batch differently, so attribution debates belong in the first agency call.

Our piece on media buying and marketing attribution shows how those metrics differ.

How Much Do Performance Creative Agencies Charge?

Most agency retainers run $1,500 to $10,000 per month with ad spend excluded, and enterprise engagements with dedicated creative teams can pass $25,000 per month, per Clutch data. Creator-made UGC is priced per video, at roughly $150 to $212 on average in 2025 according to our pricing guide, with usage rights added on top. Prices fall into four types:

Usage rights move the final bill. Paid-media licenses add about 20% to 30% of the base fee for three months and 30% to 50% for twelve, whitelisting adds roughly 20% to 30%, darkposting about 15% per month, and a perpetual license 100% to 150%, per our guide. Compare quotes on cost per distinct concept and ask what the license covers.

How to Choose a Performance Creative Agency for Your Ad Spend

Match the e-commerce creative agency to the constraint in your account:

• A brand with a strong media buyer and a creative bottleneck needs output and a test cadence, so ATTN, Darkroom, Loud Lion, or TubeScience fit.
• A brand that wants one team to own creative and media buying looks at Y'all, Pilothouse, or The Graygency.
• A brand that sells across several languages and markets can start with BARK.
• A large brand with several channels needs the measurement depth of Tinuiti.

Each of these fits a different mix of internal headcount and budget, and a brand weighing an internal studio against an agency can start with our guide to in-house versus outsourced creative production.

Seven questions separate agencies with a system from agencies with a portfolio:

1. What does a test look like, and what hypothesis comes with each concept?
2. How many distinct concepts per month will you ship, and how do you count them?
3. What rule cuts a concept, and what rule scales it?
4. Which metric decides a winner: platform ROAS, new-customer CAC, or contribution margin?
5. How do results reach the next brief, and how quickly?
6. Which named e-commerce client can I speak to, and over what period?
7. Who owns the creative and its usage rights?

Ready to Turn Creative Testing Into a Growth System?

The agencies above differ on size, price, and creative model, and each one states how it tests, how much it ships, and how results shape the next brief. Use those three answers to shortlist two or three agencies from the table, ask each for its test rules and a named e-commerce result with a period, and judge them on the same metric.

Start with a 30-day pilot sized to your ad spend: a fixed number of distinct concepts, a winner rule agreed in advance, and a written read-out of what the next batch will change.

Want a creator-led testing system with creative and media buying on one team? inBeat can do that. Book a free call and bring your current ad account numbers.

Frequently Asked Questions

Five questions come up most often when brands shortlist a performance creative agency.

What is a performance creative agency?

A performance creative agency produces ad creative and tests it against paid media results. Its work covers concepts, scripts, UGC and creator content, editing, and the reading of test results that shape the next batch.

How many creatives should an e-commerce brand expect each month?

Stated volumes on this list range from 6-12 concepts per week (ATTN) to 250 to 600 assets per cycle (Darkroom) and 150+ new assets per month at Loud Lion's top tier. The units differ, since an asset can be a resize of one concept, so ask for the count of distinct concepts.

How long until a performance creative agency shows results?

Early signals arrive fast. ATTN evaluates tests after 3 to 7 days, Darkroom says creative testing moves within the first two to four weeks, and Tinuiti's OLLY test read at 95% confidence over 14 days. Larger gains in ROAS or CAC take several test cycles.

What is the difference between a performance creative agency and a media buying agency?

A media buying agency manages budgets, bids, and targeting. A performance creative agency produces and tests the ads those budgets run. Several agencies above combine both under one team, shortening the loop between results and the next brief.

How should you judge agency results when attribution is disputed?

Ask for the metric, the period, and the baseline behind every result. A ROAS figure from platform reporting differs from blended or new-customer measures, so compare agencies on the same metric.