Telesign
Marina del Rey, USA · Founded 2005 · private
Digital identity and programmable communications platform offering SMS, RCS, voice, WhatsApp, Viber and email APIs alongside phone verification and fraud-prevention services.
messaging.dev Score
Overview
Company snapshot and where each provider is based.
| What it is | Digital identity and programmable communications platform offering SMS, RCS, voice, WhatsApp, Viber and email APIs alongside phone verification and fraud-prevention services. |
| Founded | 2005 |
| Ownership | private |
| Employees | 500-1,000 |
| HQ city | Marina del Rey |
| HQ country | USA |
Channels
Which messaging channels each provider can send and receive on.
| SMS | Yes |
| MMS | No |
| RCS | Yes |
| Yes | |
| Viber | Yes |
| Facebook Messenger | No |
| Telegram | No |
| Apple Messages for Business | No |
| Voice | Yes |
| Yes |
Developer Experience
How quickly a developer can sign up and send a first message.
| Self-service onboarding | Yes |
| Free developer credit | Yes |
| Docs quality | high |
| Documentation | https://developer.telesign.com ↗ |
| SDKs | C#, Java, Node.js, PHP, Python, Ruby |
| Sandbox / test env | No |
| API types | REST |
Data & Compliance
Data residency options and enterprise compliance certifications.
| EU data residency | Yes |
| US data residency | Yes |
| Choose region | No |
| GDPR | Yes |
| ISO 27001 | Yes |
| SOC 2 | Yes |
| HIPAA | Yes |
Data Retention
How long message content and metadata are stored, and whether that is configurable.
Customer transaction data is retained for 90 days for operational troubleshooting and billing purposes, with full backups maintained across two separate data centers also kept for 90 days.
Pricing & Credits
Pricing model and the cost of a first message.
| Pricing model | Pay-as-you-go per-message/per-transaction pricing with volume-based enterprise contracts; public per-message rates are not transparently listed. |
| SMS starting price | Not published |
| Free developer credit | Yes |
Reach & Reliability
Global coverage and delivery dependability.
| Countries covered | 230 |
| Direct operator connections | Yes |
| Published uptime SLA | No published SLA |
Company & Trust
Independent reviews and company profile.
| G2 rating | 4.3 |
| G2 reviews | 20 |
| Ownership | private |
| Employees | 500-1,000 |
Sources
Public references used for the values above, pending Telesign's confirmation.
- https://www.telesign.com/products ↗
- https://www.telesign.com/security ↗
- https://developer.telesign.com/enterprise/docs/sms-get-started ↗
- https://www.g2.com/products/telesign-verification/reviews ↗
- https://en.wikipedia.org/wiki/TeleSign ↗
- https://www.businesswire.com/news/home/20250528437310/en/Telesign-a-Proximus-Global-Company-Named-as-a-G2-Spring-2025-Leader-in-Authentication-and-Phone-Verification ↗
Migration guides
Moving away from Telesign? Step-by-step guides: