Comparison
Overview
Company snapshot and where each provider is based.
| Field | Telesign | Vonage |
|---|---|---|
| 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. | Communications APIs for SMS, voice, video, and messaging (part of Ericsson) |
| Founded | 2005 | 2001 |
| Ownership | private | public |
| Employees | 500-1,000 | 2,000-3,000 |
| HQ city | Marina del Rey | Holmdel |
| HQ country | USA | USA |
What's the differenceVonage edges ahead on the overall messaging.dev Score (89 vs 70). Telesign is private and headquartered in Marina del Rey, USA; Vonage is public and based in Holmdel, USA.
Channels
Which messaging channels each provider can send and receive on.
| Field | Telesign | Vonage |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | Yes |
| RCS | Yes | Yes |
| Yes | Yes | |
| Viber | Yes | Yes |
| Facebook Messenger | No | Yes |
| Telegram | No | No |
| Apple Messages for Business | No | No |
| Voice | Yes | Yes |
| Yes | No |
What's the differenceThey share 5 channels. Telesign additionally offers Email, while Vonage additionally offers MMS, Facebook Messenger.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | Telesign | Vonage |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | Yes | €2 free trial credit |
| Docs quality | high | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | C#, Java, Node.js, PHP, Python, Ruby | Node.js, Python, PHP, Java, C#, Ruby, Kotlin |
| Sandbox / test env | No | Yes |
| API types | REST | REST |
What's the differenceOn SDKs, Vonage adds Kotlin; Vonage offers Sandbox / test env, while Telesign does not.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | Telesign | Vonage |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | Yes | Yes |
| Choose region | No | Yes |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | Yes |
| SOC 2 | Yes | Yes |
| HIPAA | Yes | Yes |
What's the differenceVonage offers Choose region, while Telesign does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | Telesign | Vonage |
|---|---|---|
| Retention policy | 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. | Vonage retains message and call records to provide services and meet legal obligations; message content retention is limited and, for some APIs, configurable, with data-processing terms available for enterprise customers. |
What's the differenceTelesign: 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. Vonage: Vonage retains message and call records to provide services and meet legal obligations; message content retention is limited and, for some APIs, configurable, with data-processing terms available for enterprise customers.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | Telesign | Vonage |
|---|---|---|
| Pricing model | Pay-as-you-go per-message/per-transaction pricing with volume-based enterprise contracts; public per-message rates are not transparently listed. | Pay-as-you-go per message/minute with volume discounts |
| SMS starting price | Not published | Approx. $0.0072 per US SMS segment (plus carrier fees) |
| Free developer credit | Yes | €2 free trial credit |
What's the differenceTelesign and Vonage are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | Telesign | Vonage |
|---|---|---|
| Countries covered | 230 | 200 |
| Direct operator connections | Yes | Yes |
| Published uptime SLA | No published SLA | 99.95% |
What's the differenceTelesign leads on Countries covered (230 vs 200 for Vonage).
Company & Trust
Independent reviews and company profile.
| Field | Telesign | Vonage |
|---|---|---|
| G2 rating | 4.3 | 4.3 |
| G2 reviews | 20 | 200 |
| Ownership | private | public |
| Employees | 500-1,000 | 2,000-3,000 |
What's the differenceVonage leads on G2 reviews (200 vs 20 for Telesign).
Still deciding? Read the quickstart guides:
Already on one of them? Follow a migration guide: