Telnyx
Telnyx is a privately held Austin-based communications and AI infrastructure provider offering carrier-owned SIP trunking, voice, messaging, IoT eSIM, and co-located GPU-powered Voice AI services to over 14,000 enterprises and developers across 140+ countries.
- Company typePrivate
- Founded2009
- HeadquartersAustin, United States
- Headcount251–500
- GTM typeB2B
- OfferingSoftware
Telnyx firmographics
Firmographics- Name
- Telnyx
- Legal name
- Telnyx LLC
- Website
- https://telnyx.com
- Company type
- Private
- Founded year
- 2009
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Telnyx is a privately held Austin-based communications and AI infrastructure provider offering carrier-owned SIP trunking, voice, messaging, IoT eSIM, and co-located GPU-powered Voice AI services to over 14,000 enterprises and developers across 140+ countries.
- Ownership category
- akta.pro rank
Telnyx industry classification
Industry- Product category
- Cloud Communications / Communications Platform as a Service (CPaaS)
- NAICS
- Wired and Wireless Telecommunications (except Satellite) (5171), Telecommunications (517)
- SIC
- Telephone Communications (No Radiotelephone) (4813), Communications Services, Nec (4899)
- akta.pro primary industry
- Cloud PBX & Hosted Telephony (HDAIAHAB)
Keywords
Where Telnyx is headquartered
LocationHeadquarters
- HQ city
- Austin
- HQ country
- United States
- HQ region
- North America
Offices5 records
Markets served
Telnyx business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Infrastructure, Technology or R&D, Personnel, Operations, Marketing or Sales
Revenue model
- Voice and AI API Services: Usage-based revenue from voice calls, AI voice agents, speech-to-text, text-to-speech, and AI inference APIs. Customers pay per-minute rates for voice/AI services, per-character rates for TTS, per-API-call rates for inference, and per-message rates for SMS/messaging. Transparent pricing with no service usage surcharges.
- SIP Trunking and Connectivity: Revenue from SIP trunking services for enterprise voice connectivity, including per-minute pricing for inbound and outbound calls, plus SIP connection fees. Global number provisioning and porting services.
- IoT SIM and eSIM Services: Cellular connectivity revenue from IoT SIM cards and eSIM profiles for M2M and consumer IoT devices. Pricing per MB of data consumed with flexible pricing models including standby mode, data pooling, and zone-based billing.
- WhatsApp Business and Messaging: Revenue from WhatsApp Business API integration for programmable voice over WhatsApp, plus SMS/MMS messaging services at competitive per-segment rates.
- Enterprise Platform and Support: Premium support services and professional services for enterprise deployments, including 24/7 expert support and dedicated account management.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Usage-based | Pay-as-you-go | Voice AI at $0.08/min including full stack (STT, LLM, TTS, PSTN) |
| Usage-based | Pay-as-you-go | SIP Trunking outbound ~$0.005/min, inbound ~$0.0032/min |
| Usage-based | Pay-as-you-go | SMS at $0.004/segment - cheapest among CPaaS providers |
| Usage-based | Pay-as-you-go | WebRTC Voice SDK starting at $0.002/min |
| Usage-based | Pay-as-you-go | IoT eSIM data starting at $0.01/MB |
| Usage-based | Monthly | AI Inference at $0.21 per 1M tokens, first 1M free monthly |
| Usage-based | Pay-as-you-go | TTS starting at $0.000003/character |
| Usage-based | Pay-as-you-go | Local Voice Calls at $0.0070/min (make) / $0.0055/min (receive) |
| Usage-based | Pay-as-you-go | Amazon Connect comparison - Telnyx offers lower all-in cost |
Go-to-market motion3 records
Distribution channels7 records
Marketing channels8 records
Telnyx product offering
Product offeringCore offering
Telnyx provides a full-stack communications and AI infrastructure platform combining a privately owned global carrier network, co-located GPU compute, and programmable APIs for voice, messaging, AI inference, and IoT connectivity. The company sells Voice AI Agents, Voice API, SIP Trunking, SMS/WhatsApp messaging, Speech-to-Text/Text-to-Speech, AI Inference, Global Numbers, and IoT eSIM services to developers, enterprises, and vertical platforms across 140+ countries on a usage-based pricing model.
Product overview
Telnyx is a full-stack communications and AI infrastructure platform combining owned carrier network, co-located GPU compute, and programmable APIs. The platform consists of Voice AI Agents (real-time conversational AI with sub-200ms latency), Voice API (programmable voice with SIP trunking, WebRTC, and mobile voice), Speech-to-Text and Text-to-Speech APIs (100+ language transcription and 29-language synthesis), Inference API (frontier LLM hosting with OpenAI-compatible endpoint), SMS and WhatsApp Business APIs (messaging with 10DLC compliance), Global Numbers (140+ country provisioning and porting), and IoT eSIM/SIM connectivity (650+ networks, 180+ countries). The full-stack ownership from carrier licensing through GPU edge compute enables sub-200ms voice AI latency and differentiates from fragmented CPaaS competitors.
Differentiator
Problem solved
Functional benefit
Products and services
- Voice AI Agents AI-powered voice agents delivering human-like real-time conversations with sub-200ms latency, combining carrier-grade voice infrastructure with speech-to-text, LLM inference, and text-to-speech on a single platform for enterprise customer engagement.
- Voice API Programmable voice API enabling complete control of calls, call tracking, cloud IVR, contact center solutions, click-to-call, and conference calling with HD voice codecs and real-time media streaming for developers and contact center operators.
- SIP Trunking
- SMS API
- WhatsApp Business API WhatsApp Business API integration for programmable messaging and WhatsApp Business Calling, enabling voice calls over WhatsApp with AI voice agents from a single unified communications platform.
- Speech-to-Text API
- Text-to-Speech API
- Inference API
- WebRTC Voice SDK
- Mobile Voice
- Global Numbers
- IoT SIM Card
- eSIM-as-a-Service
- LiveKit on Telnyx Fully hosted platform enabling developers to deploy LiveKit voice AI agents on Telnyx-owned infrastructure without code changes, with 50% lower STT/TTS costs than LiveKit Cloud and sub-200ms round-trip latency.
Quantifiable outcome
- 50% lower speech-to-text and text-to-speech costs compared to LiveKit Cloud
- +7 more outcomes
Companies that use Telnyx
Customer profileNamed customers13 records
Segments10 records
Ideal customer profiles4 records
Telnyx technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
AI capability8 records
Feature10 records
Telnyx partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- LiveKitcoreLaunch of LiveKit on Telnyx infrastructure, a platform enabling developers to deploy voice AI agents with lower costs (50% lower STT/TTS costs than LiveKit Cloud) and ultra-low latency. Telnyx hosts STT and TTS models on its own GPU infrastructure co-located with global telephony PoPs, achieving sub-200ms round-trip latency.
- TelaruscoreStrategic partnership making Telarus an authorized distributor within the Telnyx Partner Program to deliver AI-powered communications solutions across North America. Telarus partners gain access to Voice AI Agents, Programmable Voice, and Global SIP Trunking services delivered over Telnyx's private global network. Partnership designed to scale AI-ready enterprise communications by leveraging Telarus's extensive network of agents, MSPs, and VARs.
- CommsPluscorePartnership to expand carrier-grade voice and AI services across Australia and New Zealand (ANZ) region. CommsPlus acts as a value-added distributor for Telnyx's portfolio, accelerating adoption among local resellers and UC vendors.
Scale indicators15 records
Recent moves8 records
Expansion highlights6 records
Telnyx competitors and assessment
Company assessmentDirect peers
- Twilio: Largest pure-play CPaaS provider offering programmable voice, SMS, and video APIs. Telnyx explicitly competes on price and latency against Twilio across SIP trunking, SMS, and Voice AI, with public migration tooling.
- Vonage (Ericsson): CPaaS and UCaaS provider owned by Ericsson. Competes head-to-head with Telnyx on SIP trunking and programmable communications; Telnyx pricing benchmarks cite Vonage at $0.0225/min outbound vs Telnyx's $0.005/min.
- Bandwidth Inc. Public CPaaS and communications platform offering SIP trunking, messaging, and 911 services. Directly comparable on enterprise voice and messaging; Telnyx comparison pages target Bandwidth as a primary alternative.
- Sinch: Global CPaaS provider of messaging, voice, and verification APIs serving enterprise customers. Comparable in scale and product breadth across programmable communications; competes with Telnyx in messaging and voice.
- Plivo: Cloud communications platform offering voice and SMS APIs for SMBs and enterprises. Direct competitor on SIP trunking and SMS pricing; smaller scale than Telnyx but competes in the same developer-led CPaaS segment.
- MessageBird (Bird): European-headquartered omnichannel CPaaS provider offering messaging, voice, and customer engagement tooling. Comparable to Telnyx in API-first CPaaS positioning with global number coverage and voice APIs.
Broad incumbents
- Amazon Connect: AWS's cloud contact center and communications service. Telnyx comparison pages explicitly benchmark against Amazon Connect's per-minute pricing; bundles into broader AWS cloud spend.
- Genesys: Enterprise CCaaS and customer experience platform that also provides communications APIs. Overlaps with Telnyx in contact center and AI agent use cases but at much larger enterprise scale and broader portfolio.
- 8x8: Public UCaaS and CCaaS provider offering cloud voice, video, and contact center. Adjacent peer to Telnyx on enterprise SIP trunking and unified communications, with deeper enterprise sales motion.
Emerging players
- Vapi: Voice AI agent platform focused on building conversational voice assistants. Emerging player in the same voice AI agent category as Telnyx but without Telnyx's owned carrier or GPU infrastructure; relevant benchmark for AI agent capabilities.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Telnyx social profiles
Digital presenceTelnyx compliance and trust
Trust signalCompliance5 records
Telnyx financial estimates
Financial estimateRevenue estimate
Valuation estimate
Telnyx leadership team
Management profileNumber of profiles
Profiles7 records
Telnyx funding detail
Funding detailFunding overview
Funding rounds3 records
Investors10 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Telnyx M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Telnyx
What does Telnyx do?
Telnyx provides a full-stack communications and AI infrastructure platform combining a privately owned global carrier network, co-located GPU compute, and programmable APIs for voice, messaging, AI inference, and IoT connectivity. The company sells Voice AI Agents, Voice API, SIP Trunking, SMS/WhatsApp messaging, Speech-to-Text/Text-to-Speech, AI Inference, Global Numbers, and IoT eSIM services to developers, enterprises, and vertical platforms across 140+ countries on a usage-based pricing model.
Is Telnyx a public or private company?
Telnyx is a private company. It is classified as venture growth investor backed and is currently operating.
When was Telnyx founded?
Telnyx was founded in 2009. It employs 251 to 500 people.
Where is Telnyx based?
Telnyx is headquartered in Austin, United States, in the North America region.
How does Telnyx make money?
Five revenue lines are on record. Voice and AI API Services are the primary driver. The others are SIP Trunking and Connectivity, ioT SIM and eSIM Services, whatsApp Business and Messaging and enterprise Platform and Support.
Who are Telnyx's main competitors?
Direct peers on record are Twilio, Vonage (Ericsson), Bandwidth Inc., Sinch, Plivo and MessageBird (Bird). Broad incumbents are Amazon Connect, Genesys and 8x8. Vapi is listed as an emerging player.
Does Telnyx have an API?
Yes. Telnyx offers a REST API at https://api.telnyx.com/v2 with JSON request/response format, Bearer token authentication, Ed25519-signed webhooks, rate limits enforced per endpoint, and OpenAI-compatible endpoint for AI inference. Supports an MCP server at https://api.telnyx.com/v2/mcp (streamable-http) for API actions and another at https://developers.telnyx.com/mcp for docs search. SDKs available in Python, Ruby, Node, PHP, and cURL samples. Developer documentation is at developers.telnyx.com.
What industry is Telnyx in?
Telnyx's product category is Cloud Communications / Communications Platform as a Service (CPaaS). Its primary akta.pro industry code is HDAIAHAB, Cloud PBX & Hosted Telephony. Its NAICS code is 5171 and its SIC code is 4813.