Voxbone

What Voxbone does

Voxbone is a Brussels-headquartered cloud communications company that provides programmable voice, messaging, and emergency-calling infrastructure across 60+ countries, and has been fully acquired by and integrated into Bandwidth Inc. The legacy Voxbone portal now redirects to Bandwidth authentication systems, and the legacy Voxbone product set is delivered today through Bandwidth's Universal Platform. The technology stack centers on REST APIs for voice, SMS, MMS, RCS, WebRTC, and emergency calling, layered onto Bandwidth Maestro — an enterprise integration platform that the company describes as having the most direct-to-carrier integrations globally — and a global all-IP SIP trunking backbone with PSTN reach across 65+ countries and 99.9% core network uptime.

The company operates a hybrid go-to-market that combines API-first self-serve channels for SaaS product builders and Voice AI startups with an enterprise field-sales motion targeting Global 2000 enterprises in financial services, healthcare, hospitality, and marketing technology. Revenue is generated through usage-based per-minute and per-message billing on the Communications API platform, monthly recurring fees on SIP trunking and phone number services, and premium enterprise support plans with >99% SLA response rates. Distribution is reinforced by integrations with Microsoft Teams (Direct Routing and Operator Connect), Cisco Webex Calling, Zoom Phone, Genesys Cloud CX, Five9, and Google Voice SIP Link, plus an AWS Marketplace listing for procurement. Flagship customer references include Google (partnership since 2009), Pennymac (2M calls/month, 50% telecom cost savings), Attentive (2.2B+ messages during Cyber Week), and Wyndham Hotels & Resorts (9,200 properties in 95 countries). The company's most recent strategic emphasis is on AI-ready enterprise integrations, anchored by a 2025 Bandwidth AI launch (Voice Activation Agent, Conversational AI) layered on a Google Cloud conversational AI partnership.

Name

Voxbone

Website

https://voxbone.com

Company type

Private

Founded year

2005

Operating status

Acquired

Headcount range

101–250 employees

Short description

Voxbone, now part of Bandwidth Inc., is a Brussels-based cloud communications platform delivering programmable voice, messaging, and emergency-calling APIs with PSTN reach across 60+ countries, serving Global 2000 enterprises, SaaS builders, and Voice AI startups via direct and partner channels.

Ownership category

akta.pro rank

Product category

Cloud Communications Platform

NAICS

Wired and Wireless Telecommunications (except Satellite) (5171)

SIC

Telephone Communications (No Radiotelephone) (4813), Services-Telephone Interconnect Systems (7385)

akta.pro primary industry

Cloud PBX & Hosted Telephony (HDAIAHAB)

akta.pro secondary industries

Numbering, DID, Porting & Carrier-of-Record Services (HDAIAHAK), Generative AI & LLM Solutions Services (RAG, Agents, Copilots) (BPAEAHAG)

Keywords

• Cloud communications
• Global voice API
• Virtual phone numbers
• SMS messaging API
• Programmable telephony

Headquarters

HQ city

Brussels

HQ country

Belgium

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Infrastructure, Personnel, Operations, Marketing or Sales

Revenue model

1. Communications API Platform: Revenue generated from API usage for voice, messaging, and emergency calling services. Volume-based pricing with per-minute and per-message billing for programmable communications.
2. SIP Trunking Services: Monthly recurring revenue from enterprise SIP trunking contracts with flexible all-IP connectivity and global reach.
3. Phone Number Services: Revenue from phone number provisioning, porting, and monthly number rental fees across 65+ countries.
4. Enterprise Support Plans: Premium support tiers with >99% SLA response rate providing dedicated account management and technical support.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

Voxbone provided cloud-based global voice and messaging communications services delivered via APIs. Its core products included international virtual local phone numbers (DIDs), inbound/outbound SIP trunking, programmable SMS, and E911 emergency services for enterprises and communications platforms needing local presence in multiple countries.

Product overview

Bandwidth (incorporating Voxbone) offers a unified communications platform combining voice, messaging, and emergency services. The platform is built around Communication APIs (Voice API, Messaging API with SMS/MMS/RCS, Emergency Calling API, WebRTC API, Authentication API), enterprise integrations via Bandwidth Maestro, global SIP trunking and VoIP services, and AI-powered capabilities including Voice Activation Agent and Conversational AI. The portfolio includes phone number provisioning across 65+ countries, analytics (Voice and Messaging Insights), and integrations with Microsoft Teams, Webex, Zoom Phone, and other UCaaS platforms.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 50% cost savings on telecom (Pennymac)
• +5 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

AI capability3 records

Feature8 records

Partnerships

Eight partnerships are on record, tiered flagship and core.

• GoogleflagshipTechnology or Integration · 1 January 2009Strategic partnership since 2009 for voice innovations. Google relies on Bandwidth for new voice technologies, and Bandwidth partners with Google Cloud for conversational AI integration enabling rich, intuitive customer conversations.
• MicrosoftcoreTechnology or IntegrationDual integration partnerships: Microsoft Teams Direct Routing enables enterprises to use Bandwidth for PSTN connectivity, and Operator Connect for operator-managed Teams connectivity.
• ZoomcoreTechnology or IntegrationZoom Phone integration partnership providing global SIP trunking and phone number services for Zoom Phone deployments worldwide.
• GenesyscoreTechnology or IntegrationGenesys Cloud CX integration partnership enabling contact center customers to leverage Bandwidth's voice and messaging APIs.
• Cisco WebexcoreTechnology or IntegrationWebex Calling integration partnership providing PSTN connectivity and phone number services for Cisco Webex Calling platform.
• Five9coreTechnology or IntegrationContact center integration partnership enabling Five9 customers to utilize Bandwidth's voice APIs and global phone number services.
• AWSflagshipTechnology or IntegrationAWS Marketplace listing enabling enterprise customers to procure Bandwidth communications services through AWS with simplified procurement and deployment.
• Google CloudflagshipTechnology or IntegrationConversational AI technology partnership leveraging Google Cloud's AI technology for enhanced customer service experiences through Bandwidth's communications platform.

Scale indicators11 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Bandwidth Inc. Voxbone's parent company and the platform into which its services have been fully integrated. Bandwidth operates the same communications API, SIP trunking, and messaging portfolio at a larger scale, serving the same Global 2000 and UCaaS integrator customer base.
• 8x8: 8x8 is a UCaaS and CCaaS platform offering voice, messaging, and contact center solutions with global PSTN coverage. While more vertically integrated than Voxbone, it competes for the same enterprise communications spend and has overlapping integrations with Genesys and Five9 ecosystems.
• RingCentral: RingCentral provides cloud PBX, UCaaS, and contact center solutions with global reach. Its RingCentral MVP and RingCX products overlap with Voxbone's hosted telephony and UCaaS integration partnerships, particularly in enterprise voice deployments.

Direct peers

• Twilio: Twilio is the largest pure-play CPaaS provider offering Voice, SMS/MMS, and global phone number provisioning APIs with similar developer-first and enterprise go-to-market motions. Twilio's Segment and Flex products target comparable SaaS builder and enterprise use cases that Voxbone/Bandwidth serves.
• Vonage (Ericsson): Vonage provides communications APIs (voice, messaging, video) and UCaaS solutions with strong enterprise traction; now owned by Ericsson, it competes directly in programmable voice and SIP trunking for global enterprises, overlapping heavily with Voxbone's value proposition.
• Sinch: Sinch is a global CPaaS leader in messaging and voice APIs with direct carrier relationships across 200+ countries. Its voice and emergency calling offerings compete head-to-head with Voxbone's PSTN and global number services for enterprise and SaaS builder customers.
• Telnyx: Telnyx operates a private global IP network with direct carrier interconnect similar to Bandwidth Maestro, offering programmable voice, messaging, and SIP trunking APIs. Targets the same Global 2000 and SaaS builder segments with comparable API-first positioning.
• Plivo: Plivo provides cloud communications APIs for voice, SMS, and WhatsApp messaging with global coverage. Targets SaaS product builders and enterprises with developer-first pricing, making it a comparable peer for Voxbone's API-led GTM.
• Bird (formerly MessageBird): Bird operates a global CPaaS platform for SMS, voice, and inbox APIs with presence in 50+ countries. Targets the same SaaS builder and mid-market segments and competes on global messaging coverage that overlaps with Voxbone's messaging API.

Regional players

• Telstra Wholesale: Telstra's wholesale and international voice division provides carrier-grade SIP, DID, and VoIP origination/termination services, particularly across APAC. Comparable infrastructure-layer offering though primarily serving Asia-Pacific enterprise and carrier customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks4 records

Key highlights7 records

Customer concentration

• Xx.com/voxbone
• Facebookfacebook.com/voxbone-351904161579410
• LinkedInlinkedin.com/company/voxbone

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Voxbone