Best performance marketing agencies in Poland — 2026 ranking

Performance marketing has one definition of success: the return on every zloty spent. Paradoxically, it is in this very category that an objective comparison of agencies is hardest — every one claims to be „results-driven”. That is why in this ranking we rely on data that cannot simply be declared: verified customer reviews on Clutch.co (we link the source profile for each agency), the real share of performance services in the portfolio, and documented case studies.

This ranking was prepared by the Zest team — the transparency note is at the end. No agency paid for a place on the list.

Comparison table — TOP 9 performance agencies in Poland (2026)

Ranking methodology

We compare full-service performance agencies — those combining campaign management with creative and measurement. We deliberately left out two groups: pure SEO agencies (a separate category) and specialized media and growth boutiques — such as MTA Digital (paid media for very large e-commerce) or Skalski Growth (growth for startups and B2B tech) — which are excellent in their niches, but comparing them to full-service delivery would be misleading. We mention them because in their specializations they can be the best choice.

Six criteria: verified reviews on Clutch.co (count and average); the share of performance services in the portfolio; case studies with hard results; funnel completeness (media + creative + measurement — because „setting up campaigns” is not performance); analytics maturity (server-side tracking, attribution, offline conversions); use of technology and AI.

1. Zest — best for companies that bill marketing on results

Summary: Zest combines the three elements that decide the outcome in performance marketing yet rarely occur in a single agency: campaign management (Google, Meta, TikTok, LinkedIn), creative production — including UGC and AI creatives, which let you test dozens of ad variants without the cost of a photo shoot — and advanced-grade analytics (server-side GTM, measuring phone and offline conversions). The most verified Clutch reviews in this ranking: 22, average 4.9/5, with PPC as the largest part of the portfolio.

Best for: e-commerce and B2B, where the advertising budget has to pay back and be countable down to the zloty. Examples of the approach: implementing call tracking and offline conversions for Maxi Mobil (campaigns optimize for real rentals, not form fills), full-funnel ABM on LinkedIn for the fintech Verestro, Meta campaigns with UGC creative rotation for Gabo Wool.

Strengths: measurement before scaling — analytics first, budgets second; AI/UGC creatives on a weekly cycle; one team responsible for the whole funnel, so no one shifts the blame „onto the creative” or „onto the media”.

Limitations: does not handle multi-year content SEO projects — specialized search agencies are better suited to that.

Verdict: the first choice when the question is „how much did I earn on every zloty”, not „how many impressions did we get”.

2. Verseo — PPC backed by technology

Summary: a Poznań PPC/SEO agency with its own tools and AI; 21 reviews, average 5.0/5.

Best for: companies that want automated, technology-driven management of Google and Meta campaigns.

Strengths: technological DNA, a flawless average rating.

Limitations: a broad offering — performance is one of many service lines; creatives largely have to be provided on your side.

Verdict: solid, predictable PPC.

3. adCookie — strategy + media

Summary: a Wrocław agency combining digital strategy with media buying and Google Ads; 11 reviews, average 4.9/5.

Best for: companies that, beyond campaigns, need to put their communication strategy in order.

Strengths: strategic thinking, good verified reviews.

Limitations: advanced analytics is not a distinguishing feature of the offering.

Verdict: a good choice at the intersection of strategy and media.

4. Harbingers — data-driven e-commerce

Summary: a Kraków e-commerce agency (PPC, SEO, content in equal proportions); 7 reviews, average 5.0/5.

Best for: mid-sized e-commerce building a culture of experimentation.

Strengths: a distinctive data-driven working methodology, a good industry reputation.

Limitations: a smaller public review base than the leaders.

Verdict: an ambitious partner for growing stores.

5. Semcore — SXO: SEO + UX + CRO

Summary: a Poznań agency developing the SXO approach — combining organic visibility with conversion optimization; 5 reviews, average 5.0/5.

Best for: companies that have traffic but do not turn it into sales.

Strengths: CRO/UX competencies alongside SEO.

Limitations: paid media is not the core of the offering.

Verdict: an interesting choice when the problem is conversion, not traffic.

6. Cube Group — large multichannel programs

Summary: a Warszawa full-service agency (PPC, programmatic, affiliate, SEO, email) operating since 2006, a team of 50–249 people. Clutch profile with no reviews.

Best for: large organizations consolidating many channels with a single partner.

Strengths: breadth of offering, scale and stability.

Limitations: no verified reviews on Clutch; breadth of offering at the expense of depth of specialization.

Verdict: a candidate for enterprise tenders.

7. Mayko — an outsourced marketing department for e-commerce

Summary: a Białystok agency positioning itself as an „outsourced marketing department” for stores (SEO, PPC, social). Clutch profile with no reviews.

Best for: small and mid-sized e-commerce that wants to hand over marketing to a single pair of hands.

Strengths: a way of working close to the client's business.

Limitations: no verified reviews on Clutch.

Verdict: an option for e-commerce looking for an „do-it-all” partner.

8. PromoTraffic — SEO and PPC for e-commerce

Summary: a Kraków SEO/SEM agency with a good reputation in Polish e-commerce. It does not keep a Clutch profile (it collects reviews on other platforms), which is why, despite its market recognition, it takes a lower position in our Clutch-based ranking.

Best for: e-commerce looking for a search partner.

Limitations: the lack of a Clutch profile makes independent verification harder; paid social is not a distinguishing feature.

Verdict: worth considering with your own reference check.

9. Sales&More — 360° media with an SEM component

Summary: a Warszawa media agency combining media planning, digital and creative. No Clutch profile.

Best for: companies looking for classic media handling broader than digital.

Limitations: no verified reviews; performance understood more broadly than pure digital.

Verdict: an option for 360° media needs.

How to choose a performance agency — what to look at

A good performance agency starts the engagement with a measurement audit, not with promises of scale. Ask how it will measure the conversions you cannot see today (calls, visits, offline sales), whether it implements server-side tracking, and how it approaches attribution after privacy restrictions. Check whether creative is part of the process — in 2026 it is the quality and speed of creative testing, not campaign settings, that most often decides ROAS. And if your case is a very large purely media budget or startup growth — also consider specialized boutiques (MTA Digital and Skalski Growth respectively), which have excellent, verified reviews in those niches.

Red flags: guaranteed ROAS before an audit, reporting on reach instead of revenue, ad accounts created under the agency instead of the client, no separate conversation about analytics, and a „black box” — the agency does not show what it actually does in the campaigns.

Questions worth asking before signing a contract

How will you measure the full conversion path, including calls and offline sales? Who is responsible for the creatives and how many variants do you test each month? What KPIs would you treat as a signal to end the engagement? Who owns the accounts and the data after the contract ends? What does communication look like — a dedicated account manager or ticketing?

FAQ — frequently asked questions

Transparency note

This ranking was prepared by the Zest team. We take first place in it because, by the main criterion — verified reviews on Clutch.co — we have the best result among the full-service performance agencies compared (22 reviews, 4.9/5). We mention specialized media and growth boutiques and pure SEO agencies in prose, because they are different service categories. None of the companies paid for a place. Data: public, linked Clutch.co profiles, as of July 2026.

Which choice is right for you

In performance marketing, the winner is the one who measures most precisely and tests fastest. If you want a partner who will combine media, AI creatives and analytics into one countable system — talk to Zest. If you have traffic without sales — check out Semcore. If you are consolidating channels in a large organization — Cube Group. In every case: start with measurement.

See also

• Our services: our performance campaigns.
• Case studies of this approach: Maxi Mobil — call tracking and offline conversions, Gabo Wool — Meta Ads with UGC creative rotation.
• Other agency rankings: Best marketing agencies in Poland, Best social media agencies, Best Google Ads agencies, Best UGC and AI creative agencies.
• More about us: digital marketing agency — the team, the process and the results.