Ingate Systems
- Company typePrivate
- Founded2001
- HeadquartersHollis, United States
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What Ingate Systems does
Ingate Systems AB (publ) is a Swedish-headquartered (Sundbyberg, Stockholm) communications technology company founded in 2001 that develops Enterprise Session Border Controllers (E-SBCs) and SIP-capable firewalls. The company pioneered the world's first SIP-capable enterprise firewalls, using a proprietary SIP proxy-based implementation to enable SIP/VoIP traffic to traverse enterprise NATs and firewalls while maintaining network security. Its product line spans hardware appliances (S22 through S99, handling from 800 to 80,000 concurrent calls), software deployable on virtual machines and public clouds (AWS, Azure, OpenStack, GCP), and modular add-ons covering SIP trunking, remote SIP connectivity, quality of service, VoIP survival failover, SIP registrar, advanced SIP routing, and the Q-TURN WebRTC gateway.
The company serves enterprises with IP-PBX systems requiring secure SIP trunking, Internet Telephony Service Providers (ITSPs) seeking interoperability across PBX vendors, and contact centers running legacy or end-of-life PBX platforms. It maintains confirmed interoperability with 60+ IP-PBX vendors (Microsoft Lync, Avaya, Cisco, Mitel/ShoreTel, etc.) and 70+ ITSPs (AT&T, Twilio, Bandwidth.com, Telia Sonera, etc.). Revenue is generated through hardware appliance sales, perpetual and add-on software licenses, annual support contracts, and training services (webinars at $500, onsite at $3,000/day), distributed globally via distributors, agents, Telcos, OEM partners, certified resellers, and a long-standing US distribution relationship with Computer Telephony Distributing (CTD).
A 2024 restructuring streamlined US operations under CTD following the retirement of long-time US GM Steven Johnson, and the company is positioning its Native Mitel ShoreSIP Emulation (NMSE) to capture the 30+ million ShoreTel/MiVoice Connect user base as Mitel ends license sales in 2026. The company is privately held despite its public limited company legal designation, has not raised outside capital since a $5.8M round from Bell Net in 2004, and operates with a small global headcount.
Ingate Systems firmographics
Firmographics- Name
- Ingate Systems
- Legal name
- Ingate Systems AB (publ)
- Website
- https://ingate.com
- Company type
- Private
- Founded year
- 2001
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Ownership category
- akta.pro rank
Ingate Systems industry classification
Industry- Product category
- Session Border Controllers
- NAICS
- Computer Systems Design and Related Services (5415), Computer Systems Design and Related Services (54151), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)
- SIC
- Services-Telephone Interconnect Systems (7385), Computer Communications Equipment (3576), Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- SIP Trunking & Voice Termination (HDAIAHAC)
- akta.pro secondary industries
- VoIP Access & ITSP Services (HDAIAHAD), VoIP/ATA & Integrated Voice Gateways (CPE) (HDAFAIAJ)
Keywords
Where Ingate Systems is headquartered
LocationHeadquarters
- HQ city
- Hollis
- HQ country
- United States
- HQ region
- North America
Offices4 records
Markets served
Ingate Systems business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Hardware Appliance Sales: Sale of physical SIParator/Firewall hardware appliances in various models (S22, S42, S82, S95, S97, S98, S99) handling from 5 to 80,000 concurrent calls
- Software Licenses: SIP session licenses sold per set of 5 licenses. Perpetual and upgrade licenses available. Unlimited licenses available for larger models.
- Software Modules: Additional software modules including SIP Trunking, Remote SIP Connectivity, Quality of Service, VoIP Survival, SIP Registrar, and Advanced SIP Routing available as add-on licenses
- Training Services: Instructor-led training at customer locations, webinars ($500), and certification programs. Onsite training priced at $3,000 per day plus travel expenses.
- Support Contracts: Annual support contracts available through vendors, resellers or distributors for ongoing product support and updates
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Free 30-day trial for Software SIParator/Firewall |
| Unit Pricing | One time/ perpetual license | SIP Session Licenses - sold per set of 5 |
| Unit Pricing | Multi-year contract | Onsite Product Training - 2 day, 1 day, or half day sessions |
| One time/ perpetual license | Pay-as-you-go | Webinar Training - 3-hour condensed product training |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels6 records
Ingate Systems product offering
Product offeringCore offering
Ingate Systems designs and sells Enterprise Session Border Controllers (SIParator®) and SIP-capable enterprise firewalls that allow SIP-based VoIP and unified communications to traverse NAT devices and corporate firewalls securely. Products are sold as hardware appliances (S22 through S99 models handling 5 to 80,000 concurrent calls) and as software for virtual machines and public clouds (AWS, Azure, OpenStack, GCP), accompanied by licensed modules for SIP trunking, remote SIP, QoS, VoIP survival, SIP registrar and WebRTC (Q-TURN).
Product overview
Ingate Systems offers a unified SIP communications and security platform consisting of SIParator® (Enterprise Session Border Controller) and Firewall® products that enable SIP-based VoIP through NATs and firewalls. The core offering combines session border controller functionality with advanced firewall capabilities in both hardware appliances and software formats. Hardware models range from entry-level (S22 with 800 calls) to carrier-grade (S99 with 80,000 concurrent calls). Software versions deploy on virtual machines and public clouds (AWS, Azure, OpenStack, GCP). The platform is extended through modular software add-ons including SIP Trunking, Remote SIP Connectivity, Quality of Service, VoIP Survival, SIP Registrar, and Q-TURN (WebRTC support). Ingate pioneered the world's first SIP-capable enterprise firewalls and serves enterprises, service providers, and contact centers globally.
Differentiator
Problem solved
Functional benefit
Brands
- SIParator: Enterprise Session Border Controller (E-SBC) product line that connects to existing firewalls to allow SIP-based communications traversal
- Internet+
Products and services
- Ingate SIParator®/Firewall® E-SBC Enterprise Session Border Controller (E-SBC) that connects to existing firewalls to allow traversal of SIP-based communications, including VoIP, presence, IM and conferencing, for enterprise and service provider customers.
- Ingate Software SIParator®/Firewall® Software version of the Ingate SIParator/Firewall E-SBC delivered as a virtual machine image or for deployment on Amazon Web Services, Microsoft Azure, OpenStack and Google Cloud Platform.
- SIParator/Firewall S22 Entry-level hardware appliance E-SBC managing up to 800 simultaneous SIP calls, the replacement for the S21.
- SIParator/Firewall S42 Midrange desktop/rackmount/wall-mount E-SBC appliance with 1/10 Gbps SFP+ fiber ports.
- SIParator/Firewall S82 Midrange desktop/rackmount/wall-mount E-SBC appliance with 1/10 Gbps SFP+ fiber ports.
- SIParator/Firewall S95 High capacity hardware appliance E-SBC handling up to 8,000 concurrent calls, renewed with doubled performance.
- SIParator/Firewall S97 High capacity hardware appliance E-SBC with increased performance, part of the renewed high-capacity SBC family.
- SIParator/Firewall S98 High capacity hardware appliance E-SBC handling up to 80,000 concurrent calls, capable of transcoding 6000 G.729/G.722 calls or 1800 Opus calls.
- SIParator/Firewall S99 Highest capacity hardware appliance E-SBC (S98 with dual CPUs), handling up to 80,000 concurrent calls with enhanced transcoding capabilities.
Quantifiable outcome
- 50% cost savings for 120 dental clinic locations (Benevis)
- +2 more outcomes
Companies that use Ingate Systems
Customer profileNamed customers9 records
Segments4 records
Ideal customer profiles3 records
Ingate Systems technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
AI capability4 records
Feature5 records
Ingate Systems partnerships and signals
Strategic signalPartnerships
16 partnerships are on record, tiered core, secondary and minor.
- MicrosoftcoreIngate SIParator E-SBC completed successful interoperability testing with Microsoft Exchange Online UM and Microsoft Lync. Ingate's SIParator with TLS and SRTP encryption is required to connect IP-PBXs to Exchange UM components of Microsoft Office 365 for Voice Mail and IVR. Qualified through Microsoft Unified Communications Open Interoperability Program (UCOIP).
- Mitel / Shoretel (OEM)coreSince 2008, Ingate's SBC products have been OEM-sold by Shoretel/Mitel for MiVoice Connect. With Mitel's financial restructuring and focus on hybrid solutions, Ingate and CTD are cooperating with Mitel to take over support and sales of Ingate's SBC products.
- The SIP SchoolsecondaryIngate offers Remote Online Training through The SIP School. The SIP School provides generic SIP courses, product-specific courses, and certification through SSCA (SIP School Certified Associate) program.
- TMC (Technology Marketing Corporation)coreSince 2006, Ingate partners with TMC to offer SIP Trunking, UC & WebRTC Seminars at ITEXPO events. Ingate leads educational seminars providing critical information on SIP, SIP trunking and UC to nearly thousands of attendees.
- Computer Telephony Distributing (CTD)core13-year relationship with CTD in South Carolina expanded after Steve Johnson's retirement. CTD now services vast majority of Ingate's US customers, holds inventory, and ships hardware products to North American customers. CTD also staffs the Ingate Help Desk.
- IntertexcoreSister company that merged with Ingate Systems AB in fall 2012. Intertex is a successful provider of communications and security technology to the European market since 1982. Together they presented the Internet+ model for Global Unified Communication. Both TOQrouter products and TR-069 Element management System are available through Intertex.
- AvayasecondaryConfirmed interoperability between Ingate E-SBCs and Avaya IP Office, Avaya Quick Edition, Avaya CM/SES, Avaya Aura SM, and Avaya QE products.
- CiscosecondaryConfirmed interoperability between Ingate E-SBCs and Cisco CCM, CUCM, CME, UC 500, and Cisco UM500 products.
- ShoreTelsecondaryConfirmed interoperability with ShoreTel ShoreGear products. Ingate NMSE (Native Mitel ShoreSIP Emulation) specifically supports ShoreTel/MiVoice Connect migration.
- TwiliosecondaryConfirmed interoperability with Twilio SIP trunking services. Twilio sponsored Ingate seminars at ITEXPO.
- Bandwidth.comsecondaryConfirmed interoperability with Bandwidth.com ITSP services. Platinum sponsor at ITEXPO seminars.
- AT&TsecondaryConfirmed interoperability between Ingate E-SBCs and AT&T SIP trunking services.
- Telia SonerasecondaryIngate has sold units to Swedish carrier Telia. Products deployed in potentially several-hundred unit deployment in Telia's network for global enterprise roll-out.
- Alliance InfotechminorNew Ingate partner in India. ISO 9001:2000-certified Unified Communications distributor established in 1997, with more than 20 years of experience in CRM and computer telephony (CT) products and call center solutions.
- Tadiran TelecomsecondaryTadiran selected Ingate SIParator Session Border Controller for Aeonix UC&C Platform. Guest speaker at Ingate ITEXPO seminars.
- Phone.comminorSponsor at Ingate ITEXPO seminars. Ingate startup tool facilitates setup with Phone.com SIP trunking services.
Scale indicators5 records
Recent moves8 records
Expansion highlights2 records
Ingate Systems competitors and assessment
Company assessmentDirect peers
- AudioCodes: AudioCodes is a leading direct competitor in the SBC and SIP trunking space, offering enterprise SBCs, media gateways, and Microsoft Teams-native voice solutions. Highly comparable as both companies target the same enterprise and service provider segments with SIP normalization and interoperability offerings.
- Ribbon Communications: Ribbon (Sonus + GENBAND + Edgewater Networks) is a major SBC vendor serving carriers and large enterprises. Direct competitor in the SBC market with overlapping customers in SIP trunking and Microsoft Teams environments.
- Oracle (Acme Packet): Oracle's Acme Packet Session Border Controllers are the dominant carrier-grade SBC platform globally. Direct competitor in enterprise and service provider SBC deployments with broader scale and R&D resources.
- Sansay: Sansay provides session border controllers for VoIP carriers and enterprises, with a strong focus on SIP interoperability and normalization. Direct competitor in SBC and SIP trunking technology serving ITSPs and enterprises.
- TelcoBridges: TelcoBridges offers SBC and media gateway solutions for service providers and enterprises. Direct competitor in the SBC space with comparable SIP interoperability and SIP trunking offerings.
Broad incumbents
- Cisco (CUBE): Cisco's Unified Border Element (CUBE) is the SBC component of Cisco's broader UC and networking portfolio. Incumbent competitor and also a validated integration partner; bundles SBC with CUCM, Webex, and enterprise networking.
- Avaya: Avaya offers SBC and session manager functionality within its Aura UC platform and IP Office. Broad incumbent and validated integration partner; competes indirectly through its portfolio approach rather than standalone SBC specialization.
Emerging players
- Patton Electronics: Patton provides VoIP gateways, SBCs, and smart-node products focused on SMB and enterprise SIP trunking. Comparable as a smaller specialist SBC and gateway vendor targeting similar enterprise SIP trunking use cases.
- Sangoma Technologies: Sangoma (via Digium/Star2Star) delivers SIP trunks, PBX, and SBC functionality targeted at SMBs and mid-market. Comparable as a smaller player offering integrated SIP/UC solutions with SBC elements.
Regional players
- Mitel: Mitel is both a long-standing OEM partner and indirect competitor through its MiVoice Connect/ShoreTel PBX portfolio. The OEM relationship is set to evolve as Mitel ends license sales in 2026, potentially shifting competitive dynamics in the legacy PBX market.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Ingate Systems social profiles
Digital presenceIngate Systems compliance and trust
Trust signalCompliance2 records
Ingate Systems financial estimates
Financial estimateRevenue estimate
Valuation estimate
Ingate Systems leadership team
Management profileNumber of profiles
Profiles2 records
Ingate Systems subsidiaries and ownership
Company hierarchySubsidiaries1 record
Ingate Systems funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Ingate Systems 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 Ingate Systems
What does Ingate Systems do?
Ingate Systems designs and sells Enterprise Session Border Controllers (SIParator®) and SIP-capable enterprise firewalls that allow SIP-based VoIP and unified communications to traverse NAT devices and corporate firewalls securely. Products are sold as hardware appliances (S22 through S99 models handling 5 to 80,000 concurrent calls) and as software for virtual machines and public clouds (AWS, Azure, OpenStack, GCP), accompanied by licensed modules for SIP trunking, remote SIP, QoS, VoIP survival, SIP registrar and WebRTC (Q-TURN).
Is Ingate Systems a public or private company?
Ingate Systems is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Ingate Systems founded?
Ingate Systems was founded in 2001. It employs 51 to 100 people.
Where is Ingate Systems based?
Ingate Systems is headquartered in Hollis, United States, in the North America region.
How does Ingate Systems make money?
Five revenue lines are on record. Hardware Appliance Sales are the primary driver. The others are software Licenses, software Modules, training Services and support Contracts.
Who are Ingate Systems's main competitors?
Direct peers on record are AudioCodes, Ribbon Communications, Oracle (Acme Packet), Sansay and TelcoBridges. Broad incumbents are Cisco (CUBE) and Avaya. Emerging players are Patton Electronics and Sangoma Technologies. Mitel is listed as a regional player.
Does Ingate Systems have an API?
No public API is recorded for Ingate Systems.
What industry is Ingate Systems in?
Ingate Systems's product category is Session Border Controllers. Its primary akta.pro industry code is HDAIAHAC, SIP Trunking & Voice Termination, with a secondary code of HDAIAHAD, VoIP Access & ITSP Services. Its NAICS code is 5415 and its SIC code is 7385.