Best e-commerce agencies in Poland — 2026 ranking
Marketing an online store is a system of connected vessels: Google and Meta campaigns, the product feed, SEO, on-site conversion, and a margin that has to add up at the end of the month. An agency that only watches ROAS in the ad panel can happily „grow" a store that loses money on every order. That is why this ranking compares agencies with a confirmed e-commerce specialization — by verified reviews on Clutch.co (for every agency we link the source profile), the scope of their offer for stores, and their approach to measuring profitability.
This ranking was prepared by the Zest team — transparency note at the end. No agency paid for its place on the list.
Comparison table — TOP 10 e-commerce agencies in Poland (2026)
| # | Agency | Reviews on Clutch | Rating | City | Best for |
|---|---|---|---|---|---|
| 1 | Zest | 22 | 4.9/5 | Łódź / remote | Stores that want growth on measurable margin: creatives + Meta and Google Ads + analytics in one team |
| 2 | Verseo | 21 | 5.0/5 | Poznań | Small and mid-size stores looking for Google Ads, SEO and Allegro Ads from one provider |
| 3 | Harbingers | 7 | 5.0/5 | Kraków | Mid-size and large e-commerce and manufacturers (portfolio includes Castorama, Neonet, Empik) |
| 4 | Sempai | 6 | 5.0/5 | Kraków | Stores expanding to marketplaces: Allegro, Amazon, TikTok Shop |
| 5 | Semcore | 5 | 5.0/5 | Poznań | Stores focused on SEO and conversion optimization (SXO) |
| 6 | PromoTraffic | no profile | — | Kraków | Scaling retail working on margin data and product feeds |
| 7 | Traffic Trends | no profile | — | Poznań | Stores maximizing revenue in Google and on Allegro, cross-border included |
| 8 | DevaGroup | profile with no reviews | — | Kraków | Multichannel stores: Google + Allegro + Amazon |
| 9 | Cube Group | profile with no reviews | — | Warszawa | Large enterprise brands buying SEM, CRO and programmatic under one roof |
| 10 | Kaman | no profile | — | Rzeszów | Smaller D2C stores on their own platform (Shopify, WooCommerce, PrestaShop) |
Ranking methodology
We compare agencies that position themselves as partners for online stores and have a distinct e-commerce offer. We deliberately left out media boutiques for the largest e-commerce players (such as MTA Digital), SEO-first agencies with very large review bases (Delante, Widoczni), and strong digital agencies without a distinct offer for stores (adCookie, Bluerank) — we mention them because within their specializations they can be the best choice.
Six criteria: verified reviews on Clutch.co (count and average rating); a distinct e-commerce offer; channel scope (Google Ads and Performance Max, Meta Ads, marketplaces); work on product feeds and margin data; CRO and analytics capabilities; verifiable experience with e-commerce brands in the portfolio.
1. Zest — store growth on measurable margin
Summary: Zest runs e-commerce across the full funnel: creative production (UGC and AI), Meta Ads and Google Ads campaigns, and analytics with server-side tracking, so campaigns optimize for purchases and order value — with margin taken into account, and measurement starts with a correct GA4 and conversion setup. The most verified reviews on Clutch in this ranking: 22, average 4.9/5.
Best for: stores where growth is supposed to follow from numbers: the model example is Gabo Wool, where creative testing and conversion measurement translated into scaling sales. The team calculates break-even ROAS with the client and sets campaign targets on that basis — as in our guide to break-even ROAS and maximum CPC.
Strengths: creatives, media buying and analytics in one team; campaign targets calculated from margin; server-side tracking as standard; the best Clutch review score among those compared.
Limitations: stores looking only for SEO or Allegro management will find narrower specialists further down the list.
Verdict: the first choice when the store is supposed to grow on margin and campaign results must match the sales report.
2. Verseo — search, SEO and Allegro from one provider
Summary: a Poznań agency whose offer covers Google Ads (Search, Shopping, Performance Max), Meta Ads, Allegro Ads and store SEO; 21 reviews, 5.0/5.
Best for: small and mid-size stores on WooCommerce, Shopify or PrestaShop that want one partner for visibility in Google and on Allegro.
Limitations: a broad offer — e-commerce is one of many segments served.
Verdict: a solid choice for SMBs with strong social proof.
3. Harbingers — e-commerce at scale
Summary: a Kraków agency with a distinct e-commerce offer and a portfolio of large brands (Castorama, Neonet, Empik); Google Ads, Meta Ads, Allegro Ads, CRO/UX audits and store SEO; 7 reviews, 5.0/5.
Best for: mid-size and large stores and manufacturers building sales in several channels at once.
Limitations: a smaller review base than the ranking leaders.
Verdict: a strong partner for mid-size and large e-commerce.
4. Sempai — marketplaces and performance
Summary: a Kraków performance agency for e-commerce (DeeZee, Morele, Deichmann): Google Ads, Meta Ads, Microsoft Ads, Allegro and Amazon, TikTok Shop, CRO and product feeds; 6 reviews, 5.0/5.
Best for: stores that want to sell on marketplaces alongside their own site.
Limitations: a smaller review base than the leaders.
Verdict: a good option for a multichannel strategy with marketplaces.
5. Semcore — SEO and conversion (SXO)
Summary: a Poznań SXO agency with a separate offer for store SEO and conversion optimization; 5 reviews, 5.0/5.
Best for: stores whose priority is organic traffic and improving conversion rate.
Limitations: paid media has a smaller share of the offer — this is an SEO-first choice.
Verdict: a good partner when organic is the priority.
6. PromoTraffic — retail on data
Summary: a Kraków performance agency for retail (including Decathlon): Google Ads, Meta Ads, TikTok, programmatic, product feed management, CRO and its own tool for working on margin data. No Clutch profile, hence a lower position despite market presence.
Best for: scaling B2C retail and omnichannel brands.
Limitations: client reviews cannot be independently verified through Clutch.
Verdict: worth considering with your own reference checks.
7. Traffic Trends — Google and Allegro for stores
Summary: a Wielkopolska SEO/Google Ads agency specializing in e-commerce, with Allegro Ads and cross-border sales support. No Clutch profile.
Best for: stores focused on revenue from search and Allegro, including abroad.
Limitations: reviews cannot be independently verified through Clutch.
Verdict: worth considering with your own reference checks.
8. DevaGroup — multichannel for SMBs
Summary: a Kraków agency with a separate Google Ads for e-commerce offer, Allegro Ads (certified partner) and Amazon advertising. Clutch profile with no reviews.
Best for: smaller stores building sales in Google, on Allegro and on Amazon in parallel.
Limitations: no verified reviews on Clutch.
Verdict: a sensible option for SMBs — verify references directly.
9. Cube Group — enterprise e-commerce
Summary: a Warsaw full-service agency declaring a focus on e-commerce sales growth and profitability on its homepage (portfolio includes Media Markt, Empik, Adidas): SEM, paid social, CRO, programmatic. Clutch profile with no reviews.
Best for: large organizations buying many channels at once.
Limitations: no reviews on Clutch; e-commerce without a separate offer page.
Verdict: a candidate for enterprise pitches.
10. Kaman — D2C on your own platform
Summary: a Rzeszów agency with a separate e-commerce marketing offer: Google Ads, Meta Ads, SEO, UGC and automation — clearly positioned for B2C stores on their own platform. No Clutch profile.
Best for: smaller D2C stores on Shopify, WooCommerce, PrestaShop or Magento.
Limitations: reviews cannot be verified through Clutch; boutique scale.
Verdict: an option for smaller stores — ask for references.
How to choose an e-commerce agency — what to look at
The first question is: what will the campaigns optimize for. A good agency will ask about margins per category, calculate break-even ROAS with you and set targets from profitability; a weak one will show panel ROAS and consider the matter closed. Second: the product feed — who maintains it, how often it updates, and whether anyone works on titles and attributes (in shopping campaigns the feed does the work of keywords). Third: measurement — GA4 and conversion setup with values, server-side tracking, order deduplication. Fourth: on-site conversion, because delivering traffic to a store converting at 1% is an expensive hobby.
Red flags: reports ending at panel ROAS (with no reconciliation against actual orders), no questions about margin when setting targets, a feed „configured once and forever", the ad account owned by the agency, guaranteed results before an account and analytics audit.
Questions worth asking an agency
How will you calculate the campaign profitability threshold and what does it mean for ROAS targets? Who handles the product feed and how often is it optimized? How will you configure measurement — GA4, conversions with values, server-side tracking? How do you report: revenue and margin, or clicks? What will you do about on-site conversion if it turns out to be the bottleneck? Who owns the accounts and data after the cooperation ends?
FAQ — frequently asked questions
Q.Which e-commerce agency is the best in Poland?
According to our ranking: Zest — the most verified reviews on Clutch among those compared (22, average 4.9/5), with creatives, campaigns and analytics in one team. For marketplace-focused stores Sempai is a good choice; for SEO-first — Semcore.
Q.How much does marketing management for an online store cost?
For campaign management alone usually PLN 2,000–6,000 per month or 10–20% of media spend. Full service (campaigns + SEO + CRO + feeds) costs proportionally more. The ad budget is a separate cost.
Q.What is a good ROAS for an online store?
One that exceeds your break-even ROAS — and that depends on margin. At a 30% gross margin a campaign only breaks even around ROAS 3.3, while at a 50% margin around 2.0 is enough. That is why targets are set from margin, and a single „good ROAS" for every store does not exist.
Q.Google Ads or Meta Ads — which is better for a store?
Google closes existing demand (someone is searching for the product), Meta builds demand on creatives and scales reach. Most stores grow into both channels; the proportions depend on category, margin and creative strength.
Q.Should a store sell on Allegro and Amazon?
Marketplaces give quick access to demand, but they cost commission and make building your own customer base harder. A healthy setup is usually your own store as the center plus marketplaces as an additional channel — with profitability of each tracked separately.
Q.What is Performance Max in e-commerce?
Google's automated campaign type covering search, Shopping, YouTube and the display network. In e-commerce it runs on the product feed and conversion data with values — the quality of both decides the result.
Transparency note
This ranking was prepared by the Zest team. We take first place because, by the main criterion — verified reviews on Clutch.co — we have the best score among the agencies compared (22 reviews, 4.9/5), and combining creatives, campaigns and analytics for e-commerce is the core of our offer. We mention media boutiques and SEO-first agencies with larger review bases in the prose because those are different service categories. No company paid for its place. Data: public, linked Clutch.co profiles, as of August 2026.
Which choice is right for you
A store grows healthily when campaigns, creatives and analytics all work toward the same number: margin from orders. If that is how you want to run your e-commerce — talk to Zest: Meta Ads campaigns, Google Ads campaigns, or fastest via the contact form. If marketplaces are your priority — check Sempai; for an SEO-first strategy — Semcore. And whichever you choose: ad accounts, analytics and the feed must always belong to you.
See also
- Our services: Meta Ads campaigns and Google Ads campaigns.
- Case studies of this approach: Gabo Wool — Meta Ads for e-commerce and Falcon — car rental.
- From the blog: Break-even ROAS and maximum CPC and Advantage+ Shopping — when it pays off.
- Other agency rankings: Best marketing agencies in Poland, Best Meta Ads agencies, Best TikTok agencies, Best LinkedIn agencies, Best performance marketing agencies, Best Google Ads agencies, Best social media agencies, Best UGC and AI creative agencies.
- More about us: Zest — team, process and results.
Builds growth strategies for e-commerce where campaigns, creatives and analytics work toward one number: margin from orders. Starts by calculating break-even ROAS, then scales budgets.
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