Sansay

What Sansay does

Sansay, Inc. is a privately held, founder-owned VoIP infrastructure software company founded in 2002 and headquartered in San Diego, California. It builds software-based session border controllers (SBCs) and related VoIP/WebRTC session control products — principally the VSXi SBC, the virtualized vmVSXi, the patented WebSBC, the MST3 media/transcoding server, the ROME routing and intelligence module, and STIR/SHAKEN caller-authentication products — for wholesale carriers, retail business VoIP providers, cable MSOs, mobile operators, and WebRTC service providers. The platform runs on Linux-based commercial off-the-shelf servers or as virtualized/cloud instances on AWS, VMware, Softlayer, and Terremark, with Miercom-validated performance of 510,000 concurrent calls and 3,000 calls per second on a single 1RU node.

Sansay serves more than 400 service providers worldwide, including carriers such as AireSpring, Momentum Telecom, VASUDEV Global, and TeleSpan. The company sells software licenses (both perpetual and subscription) and professional implementation/integration/support services through a direct enterprise sales motion complemented by technology and channel partners (Taqua, TCA, BroadSoft ecosystem, Microsoft Teams integration). Sansay's engineering leadership traces to Nuera Communications, an early pioneer in carrier VoIP softswitches and gateways, providing deep domain expertise in carrier-grade SBC design. Recognition includes Gartner's 2013 visionary SBC/WebRTC recognition, multiple Pulver 100 awards (2004-2007), and a U.S. patent on its WebSBC process. The company continues to expand its product surface around regulatory-driven opportunities (STIR/SHAKEN, Branded Calling, Do Not Originate) while maintaining a founder-led, no-external-capital ownership structure.

Name

Sansay

Legal name

Sansay, Inc.

Website

https://sansay.com

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

Sansay provides software-based session border controllers and VoIP infrastructure (VSXi SBC, WebSBC, STIR/SHAKEN) for more than 400 global service providers, including wholesale carriers, cable MSOs, and mobile operators. Founded 2002 in San Diego.

Ownership category

akta.pro rank

Product category

Telecom VoIP Infrastructure Software (Session Border Controllers)

NAICS

Computer Systems Design and Related Services (5415), Wired and Wireless Telecommunications (except Satellite) (5171)

SIC

Services-Telephone Interconnect Systems (7385)

akta.pro primary industry

Pay-TV Middleware, Conditional Access & Subscriber Management (CAS/DRM/BSS) (MPABAGAH)

Keywords

• Session border controller
• VoIP infrastructure software
• SIP session management
• WebRTC session control
• Caller authentication solutions

Headquarters

HQ city

San Diego

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software Licenses: Sale of VSXi SBC software licenses, vmVSXi virtualized/cloud SBC software, and related VoIP infrastructure software products. Both perpetual and subscription licensing models available.
2. Professional Services: Implementation, integration, and technical support services for Sansay's VoIP infrastructure solutions.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Sansay develops and sells software-based Session Border Controllers (SBCs) and related VoIP/WebRTC infrastructure products for telecom service providers. Its core platform, the VSXi SBC, is deployed as a 1RU Linux appliance or virtualized (vmVSXi) on AWS, Terremark, or Softlayer, and is supplemented by MST3 media handling/transcoding, ROME routing and intelligence, STIR/SHAKEN caller authentication, and the patented WebSBC™ for WebRTC. The platform secures, scales, and interconnects wholesale and retail VoIP traffic, replacing Class 4 TDM switches at a fraction of the cost.

Product overview

Sansay provides a cloud-ready, high-performance, scalable software-based VoIP and WebRTC session control infrastructure. The product portfolio centers on the VSXi Software SBC as the core platform, available as physical appliance, virtualized (vmVSXi), or cloud deployment. Supporting modules include the MST3 Media Handling system for RTP media and transcoding (scalable to 32 media servers per VSXi node), ROME for enhanced routing and intelligence, and STIR/SHAKEN for caller authentication. The WebSBC™ provides web-based multimedia capabilities. The company serves over 400 service providers worldwide for domestic/international wholesale telephony, prepaid services, retail business VoIP, SIP trunking, mobile services, contact center applications, cable MSO VoIP, and WebRTC applications.

Differentiator

Problem solved

Functional benefit

Brands

• VSXi: Session border controller (SBC) software providing VoIP performance, scalability and resilience. Tested for 510,000 concurrent calls and 3,000 calls per second.
• WebSBC™
• vmVSXi
• MST3
• ROME

Products and services

• VSXi Software SBC Software-based Session Border Controller (SBC) providing VoIP network security, interoperability, call routing, and session management for carrier and service provider networks; deployed on a 1RU Linux server.
• vmVSXi Virtualized and Cloud SBC

Quantifiable outcome

• 510,000 concurrent calls supported on single VSXi node
• +6 more outcomes

Named customers19 records

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Six partnerships are on record, tiered core.

• TaquacoreTechnology or Integration · 29 January 2015Taqua integrated Sansay into TaquaWorks Next Generation IP-Based Class 4/5 solution for enhanced VoIP interoperability.
• PlivocoreTechnology or Integration · 27 February 2013Completed advanced interoperability testing between Sansay SBCs and Plivo's cloud communications and messaging platform to accelerate commercialization of innovative voice services for emerging markets.
• Level 3 CommunicationscoreTechnology or Integration · 18 June 2007Sansay joined the Level 3 Technology Alliance Program (TAP), a group uniting VoIP industry leaders to provide interoperability and optimize high-value services for Level 3 customers.
• Amazon Web Services (AWS)coreTechnology or IntegrationVSXi is virtualized in AWS cloud services, enabling cloud deployment of Sansay's VoIP infrastructure solutions.
• BroadSoftcoreTechnology or IntegrationSansay solutions integrate with BroadSoft's BroadWorks platform, used by customers like SimpleSignal for unified communications delivery.
• MicrosoftcoreTechnology or IntegrationSansay offers Microsoft Teams integration as a solution, enabling VoIP session control for Teams-based communications.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• AudioCodes: AudioCodes is a direct competitor offering session border controllers, media gateways, and SIP trunking solutions targeting service providers and enterprises deploying Microsoft Teams and UCaaS, directly overlapping Sansay's VSXi SBC and MST media handling portfolio.
• Ribbon Communications: Ribbon (formed from the Sonus/GenBand merger) is one of the largest SBC vendors globally, offering the SBC 5000/7000 series and session core software for wholesale and retail carriers, competing head-to-head with Sansay's VSXi in nearly all of its targeted segments.
• Patton Electronics: Patton offers the SmartNode and eSBC lineup targeting SMB and SME VoIP service providers, overlapping with Sansay's VSXi SBC at the smaller end of the retail and SIP trunking market.
• Sangoma Technologies: Sangoma offers SBCs, VoIP gateways, and UCaaS platforms (including the Asterisk and FreePBX ecosystem) targeting retail VoIP and hosted UC providers, directly competing with Sansay's VSXi and ROME offering.
• TelcoBridges: TelcoBridges provides carrier-grade SBCs and media gateways (TB Analytics, ProSBC) primarily for wholesale and transit voice operators, closely comparable to Sansay's VSXi and MST3 products in feature scope and customer profile.

Broad incumbents

• Cisco: Cisco offers SBC functionality within its Unified Communications portfolio (CUCM, UBE) and increasingly as cloud-delivered Webex Edge connect, competing with Sansay's VSXi and WebSBC in enterprise and service provider deployments.
• Nokia (Cloud SBC): Nokia offers its 7750 Service Router and cloud-native SBC for mobile operators and tier-1 carriers, overlapping with Sansay's mobile operator and MSO segments at the high-capacity, cloud-native end of the market.
• Oracle (Acme Packet): Oracle's Acme Packet SBC line is the historical market-share leader for carrier-grade session border control, sold primarily to large Tier 1 operators. It competes with Sansay's VSXi SBC at the high end of the wholesale carrier market.

Emerging players

• Mavenir: Mavenir provides cloud-native SBC and session core software for 4G/5G mobile operators, offering an alternative to traditional appliance SBCs like Sansay's VSXi, particularly for mobile operator and VoLTE/VoNR customers.
• Dialogic (Enghouse Networks): Dialogic, now part of Enghouse Networks, offers PowerMedia XMS and BorderNet SBC products targeting service providers, historically comparable to Sansay's media handling and SBC capabilities for legacy TDM-to-IP migrations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/gosansay
• LinkedInlinkedin.com/company/sansay
• Facebookfacebook.com/comspheretel.sansay

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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 Sansay