Crestvanta Ltd delivers secure, high-availability messaging infrastructure and API-first communication gateways for regulated SaaS platforms, financial services firms, and enterprise software providers across the United Kingdom and Europe.
Founded in 2021, Crestvanta Ltd is a London-based secure communication infrastructure provider specialising in compliance-led transactional messaging systems and resilient routing architecture.
Registered Office: 107 Cheapside, London, EC2V 6DN, United Kingdom
Company Number: 13859264
VAT Number: GB449872163
Telephone: +44 20 3946 7811
Email: support@crestvanta.co.uk | sales@crestvanta.co.uk
We support SaaS platforms, financial institutions, FinTech providers, enterprise software vendors, and regulated professional services requiring secure, auditable communication infrastructure.
From £299 per month
Up to 1.3 million messages
Custom contractual agreements
Dedicated IP allocation & compliance review
Comprehensive API references, SMTP configuration guidance, domain authentication setup instructions, and structured compliance onboarding documentation are provided following approval.
No unsolicited bulk email is permitted under any circumstances.
| Domain | Status |
|---|---|
| clientservices.co.uk | Authenticated |
| saasplatform.io | Pending Verification |
Daily API call volume trend (simulated)
| Date | Activity |
|---|---|
| 24 Feb 2026 | Compliance audit completed |
| 23 Feb 2026 | Domain authentication verified |
| 22 Feb 2026 | IP reputation monitoring check passed |
Crestvanta Ltd processes personal data in accordance with UK GDPR requirements and maintains appropriate technical and organisational safeguards to ensure confidentiality and lawful processing.
All accounts are subject to manual compliance review and identity verification prior to activation. Clients must adhere to all applicable UK and international communication regulations.
Unsolicited messaging, purchased contact lists, and unauthorised bulk distribution are strictly prohibited. Crestvanta enforces immediate suspension for policy violations.