European alternatives to Square (Block)
Square (Block) is a US-based provider (Payment gateway) operating outside the EEA (data residency: Partial). For teams that need European digital sovereignty — GDPR-safe, outside US CLOUD Act reach — here are 9 verified European providers covering the same ground.
9 verified European alternatives
🏦 Local IBANs: NL
Adyen (Netherlands) - global acquiring, card issuing and banking; Adyen Issuing offers BIN sponsorship for platforms plus business accounts with NL IBANs. Credit institution (bank), DNB; passported across the EEA (CRD IV). A rare EU-HQ global processor. Agentic-ready - named partner in Mastercard Agent Pay (AI-agent commerce).
Aircash d.o.o. (Zagreb) - e-money institution, Croatian National Bank (ref IEN116); m-wallet, prepaid cards, mobile payments, transfers; passported across the EEA.
Autopay (Blue Media S.A., Poland) - online payments and account-to-account: BLIK, cards and open banking. National Payment Institution, KNF (since 2013).
Axerve (Biella, Italy; Fabrick / Sella Group) - Italy's payment hub for omnichannel acceptance: the Gestpay gateway (one of Italy's leading, 8,000+ companies) plus POS acquiring, with 250+ payment methods including Apple Pay, Samsung Pay and Alipay. Cross-reference: sister company of Fabrick (both Sella Group) - ownership flag (EU).
Bank Frick (Liechtenstein; family-owned, founded 1998) - banking and acquiring for PSPs and fintechs; the only Liechtenstein bank with both Visa and Mastercard acquiring licences, and the first EU bank in blockchain banking (2018). First Liechtenstein entry in the catalogue.
Barion Payment Zrt (Budapest) - e-money institution, MNB licence H-EN-I-1064/2013; online payment gateway, e-money wallet, card acceptance. #1 Hungarian EMI, EEA-passported.
Buckaroo (Utrecht, Netherlands; founded 2005) - Dutch/Belgian PSP with 46k+ clients, 1bn+ transactions a year and 40+ payment methods; embedded SME financing via Buckaroo Capital (YouLend). DNB-registered (Buckaroo B.V.), owned by Keensight Capital.
Clearhaus (Aarhus, Denmark) - e-commerce merchant acquirer serving 33,000+ webshops across Europe; first Danish acquirer with a Payment Facilitator solution. Acquired by Unzer (DE) together with QuickPay - ownership flag (EU). Licensed payment institution (Danish FSA).
CM.com (Breda, Netherlands; founded 1999; Euronext Amsterdam: CMCOM) - the 'Pay' segment provides online and in-person payments and settlement alongside messaging and ticketing; ~EUR 290m revenue.
FAQ
What is the best European alternative to Square (Block)?
It depends on which capability you need (Payment gateway). Fintechnologica lists 9 verified European options above; the top-ranked European-origin match is Adyen (Netherlands). Request a match for a shortlist tailored to your licence, market and EEA requirements.
Are these alternatives fully European / EEA-based?
Each provider shows its origin and EEA data-residency status (Yes / Partial / No). European origin means the company's HQ and lineage are European; the EEA flag reflects where data and the operating rail actually sit. Both are shown so you can judge sovereignty for your own requirements.
How are these verified?
Every provider is verified at source: licence type, regulator and a registry reference — not a marketing page. That is the depth G2 and Capterra don't provide.