IsThisCompanyReal
15 validation tools in one place

Verify any business
number instantly.

VAT numbers, IBANs, company registrations, tax IDs — check if they're real before you wire money, sign contracts, or onboard clients.

How it works

01

Paste the number

Enter any company, tax, or identity number into the relevant validator.

02

We check it

Format validators run instantly. Live lookups query official registries in seconds.

03

Get a clear answer

Valid, invalid, or not found — with details you can act on immediately.

Validation tools

15 tools, one answer.

Format checks are always free. Live lookups use your daily quota.

Is this VAT number real?

EU VAT Validator

Validate EU VAT registration numbers against the VIES database in real-time.

Is this bank number correct before I wire?

IBAN Validator

Verify IBAN structure and checksum before sending international transfers.

Is this SWIFT code legit?

BIC / SWIFT Validator

Check BIC/SWIFT codes for correct format and known bank registry.

Is this a real registered UK business?

UK Company Checker

Look up Companies House to verify UK business registration status.

Is this Dutch citizen number valid?

BSN Validator

Validate Dutch Burger Service Numbers using the 11-proof algorithm.

Is this card number structurally valid?

Credit Card Validator

Run Luhn algorithm checks to verify card number integrity without charging.

Is this Dutch company registered?

NL KVK Checker

Verify Dutch Chamber of Commerce (KVK) registration numbers live.

Verify this financial entity identifier

LEI Lookup

Check Legal Entity Identifiers used in global financial transactions.

Is this customs number valid?

EORI Validator

Validate Economic Operators Registration and Identification numbers for customs.

When does this site's SSL expire?

SSL Certificate Checker

Inspect SSL certificate validity, expiry date, and chain trust for any domain.

Is this book number real?

ISBN Validator

Validate ISBN-10 and ISBN-13 numbers using standard check-digit algorithms.

Is this phone serial number legit?

IMEI Validator

Verify IMEI numbers with Luhn validation and check device registration.

Is this Spanish tax number valid?

NIF / NIE Validator

Validate Spanish national identity and foreigner identification numbers.

Is this Brazilian tax ID valid?

CPF Validator

Check Brazilian Cadastro de Pessoas Físicas numbers with digit verification.

Is this Australian business number real?

ABN Checker

Verify Australian Business Numbers against the ABR public register.

Pricing

Start free, scale when ready.

Free
No account needed. Start verifying right now.
€0/forever
  • All format validators, unlimited
  • 5–10 live lookups per day
  • IBAN, card, ISBN, IMEI checks
  • No credit card required
Pro
Popular
For freelancers, accountants, and small teams.
€19/per month
  • Unlimited format checks
  • 500 live lookups per month
  • API access with key
  • Bulk CSV upload
  • Email support
Business
For teams with high volume and compliance needs.
€79/per month
  • 3,000 live lookups per month
  • Priority support & SLA
  • Team seats
  • Usage dashboard
  • Custom integrations

Pay-as-you-go credits

€10 for 200 live lookups — no subscription needed. Perfect for accountants, lawyers, or freelancers who verify once a quarter.

Stop guessing. Start verifying.

Join businesses and freelancers who use IsThisCompanyReal to avoid fraud, failed payments, and bad actors before they become problems.