Sansay
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.
- Company typePrivate
- Founded2002
- HeadquartersSan Diego, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
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.
Sansay firmographics
Firmographics- 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
Sansay industry classification
Industry- 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
Where Sansay is headquartered
LocationHeadquarters
- HQ city
- San Diego
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Sansay business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- 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.
- 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
Sansay product offering
Product offeringCore 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
Companies that use Sansay
Customer profileNamed customers19 records
Segments6 records
Ideal customer profiles3 records
Sansay technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Sansay partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core.
- TaquacoreTaqua integrated Sansay into TaquaWorks Next Generation IP-Based Class 4/5 solution for enhanced VoIP interoperability.
- PlivocoreCompleted 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 CommunicationscoreSansay 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)coreVSXi is virtualized in AWS cloud services, enabling cloud deployment of Sansay's VoIP infrastructure solutions.
- BroadSoftcoreSansay solutions integrate with BroadSoft's BroadWorks platform, used by customers like SimpleSignal for unified communications delivery.
- MicrosoftcoreSansay offers Microsoft Teams integration as a solution, enabling VoIP session control for Teams-based communications.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
Sansay competitors and assessment
Company assessmentDirect 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
Sansay social profiles
Digital presenceSansay financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sansay leadership team
Management profileNumber of profiles
Profiles1 record
Sansay funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sansay 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 Sansay
What does Sansay do?
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.
Is Sansay a public or private company?
Sansay is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Sansay founded?
Sansay was founded in 2002. It employs 11 to 50 people.
Where is Sansay based?
Sansay is headquartered in San Diego, United States, in the North America region.
How does Sansay make money?
Two revenue lines are on record. Software Licenses are the primary driver. The others are professional Services.
Who are Sansay's main competitors?
Direct peers on record are AudioCodes, Ribbon Communications, Patton Electronics, Sangoma Technologies and TelcoBridges. Broad incumbents are Cisco, Nokia (Cloud SBC) and Oracle (Acme Packet). Emerging players are Mavenir and Dialogic (Enghouse Networks).
Does Sansay have an API?
No public API is recorded for Sansay.
What industry is Sansay in?
Sansay's product category is Telecom VoIP Infrastructure Software (Session Border Controllers). Its primary akta.pro industry code is MPABAGAH, Pay-TV Middleware, Conditional Access & Subscriber Management (CAS/DRM/BSS). Its NAICS code is 5415 and its SIC code is 7385.