Comparison

Overview

Company snapshot and where each provider is based.

FieldBirdTelesign
What it isCommunications infrastructure platform (formerly MessageBird) providing unified APIs for email, SMS, WhatsApp and voice on a network that carries about 40% of the world's commercial SMS volume.Digital identity and programmable communications platform offering SMS, RCS, voice, WhatsApp, Viber and email APIs alongside phone verification and fraud-prevention services.
Founded20112005
Ownershipprivateprivate
Employees500-1,000500-1,000
HQ cityAmsterdamMarina del Rey
HQ countryNetherlands (EU)USA
What's the differenceBird edges ahead on the overall messaging.dev Score (76 vs 70). Bird is private and headquartered in Amsterdam, Netherlands (EU); Telesign is private and based in Marina del Rey, USA.

Channels

Which messaging channels each provider can send and receive on.

FieldBirdTelesign
SMSYesYes
MMSNoNo
RCSNoYes
WhatsAppYesYes
ViberNoYes
Facebook MessengerNoNo
TelegramNoNo
Apple Messages for BusinessNoNo
VoiceYesYes
EmailYesYes
What's the differenceThey share 4 channels. Telesign additionally offers RCS, Viber.

Developer Experience

How quickly a developer can sign up and send a first message.

FieldBirdTelesign
Self-service onboardingYesYes
Free developer creditFree email tier (1,000/month)Yes
Docs qualityhighhigh
DocumentationOpen ↗Open ↗
SDKsTypeScript, Python, GoC#, Java, Node.js, PHP, Python, Ruby
Sandbox / test envYesNo
API typesREST, SMTPREST
What's the differenceOn SDKs, Bird adds TypeScript, Go; Telesign adds C#, Java, Node.js, PHP, Ruby; Bird offers Sandbox / test env, while Telesign does not; on API types, Bird adds SMTP.

Data & Compliance

Data residency options and enterprise compliance certifications.

FieldBirdTelesign
EU data residencyYesYes
US data residencyYesYes
Choose regionYesNo
GDPRYesYes
ISO 27001YesYes
SOC 2YesYes
HIPAAYesYes
What's the differenceBird offers Choose region, while Telesign does not.

Data Retention

How long message content and metadata are stored, and whether that is configurable.

FieldBirdTelesign
Retention policyPrivacy statement: for telecom products (SMS, email, voice), metadata and traffic data are retained for 6 months after transmission, extended up to two years where local law requires; email message content is held for at most 72 hours.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.
What's the differenceBird: Privacy statement: for telecom products (SMS, email, voice), metadata and traffic data are retained for 6 months after transmission, extended up to two years where local law requires; email message content is held for at most 72 hours. Telesign: 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.

FieldBirdTelesign
Pricing modelUsage-based transactional pricing with no platform or seat fees: volume-tiered email subscriptions (free tier, then e.g. $15/month for 50K emails) and published per-country per-message SMS rates; WhatsApp priced by destination country and message category.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$0.0073 per message to US numbers (long code, toll-free and short code; carrier fees extra), per-country pricing grid publishedNot published
Free developer creditFree email tier (1,000/month)Yes
What's the differenceBird and Telesign are closely matched on pricing & credits — no material differences in the tracked fields.

Reach & Reliability

Global coverage and delivery dependability.

FieldBirdTelesign
Countries covered150230
Direct operator connectionsYesYes
Published uptime SLA99.95% (legacy MessageBird SLA; current SLAs are per-service-plan in Order Form terms)No published SLA
What's the differenceTelesign leads on Countries covered (230 vs 150 for Bird).

Company & Trust

Independent reviews and company profile.

FieldBirdTelesign
G2 rating3.94.3
G2 reviews7320
Ownershipprivateprivate
Employees500-1,000500-1,000
What's the differenceTelesign leads on G2 rating (4.3 vs 3.9 for Bird); Bird leads on G2 reviews (73 vs 20 for Telesign).

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