Broker Review

Unauthorised Firm Details

Name: Coinstant / Coinstant Smirnov & Smirnov
Website: coinstant.es

Coinstant.es presents itself as a national Bitcoin exchange in Spain, offering services to buy, sell, send, and receive Bitcoin, often claiming “fast” trades, secure wallets, and bank transfers. However, it has been officially flagged by Spain’s securities regulator (the CNMV) as not authorised to provide investment or financial services. The CNMV listed “Coinstant Smirnov & Smirnov (coinstant.es)” among 35 entities under warning in June 2025 for offering investment-type services without registration. Reputation-monitoring sources also present concerns over its trustworthiness. Some user reports (blogs and forums) allege misleading behavior, difficulty withdrawing or accessing funds, and aggressive marketing.

Bottom line: Coinstant.es shows classic red flags: regulator warning, unauthorized status, and reports of problematic user experience. It should be considered high risk and one should avoid depositing funds.

Location & Risk Notes

• Regulatory action: The CNMV has issued a warning declaring Coinstant Smirnov & Smirnov (coinstant.es) not authorised to offer investment services in Spain.

• Transparency: Ownership and registration details are not clearly verified; privacy protections hide some corporate information.

• Domain & reputation: The website is somewhat new in the financial-services space; domain data and trust services give mixed or negative trust signals.

• User reports: Some users claim delays or failures in withdrawals, unclear fees, and poor customer support in resolving disputes.

• Service claims vs oversight: While some terms and policies mention account verification, anti-money-laundering (AML) compliance, and security tools, the lack of regulator licensing means those claims are not backed by government oversight.

• Practical advice: Do not send large amounts; test with small transactions; keep all communications and transaction records; can contact local regulation authorities if issues arise; be wary of “recovery service” offers that ask for upfront payment.