Zultys, Inc.
Zultys is a Sunnyvale-based unified communications vendor selling an open-standards SIP-based MX platform (on-premise, virtual, cloud, or hybrid HaaS) with the ZAC desktop/mobile client and integrated contact center, distributed exclusively through authorized channel partners to SMB, multi-location, and enterprise customers across healthcare, education, financial services, and retail.
- Company typePrivate
- Founded2006
- HeadquartersSunnyvale, United States
- Headcount101–250
- GTM typeB2B
- OfferingSoftware
What Zultys, Inc. does
Zultys, Inc. is a privately held unified communications (UC) vendor founded in 2006 and headquartered in Sunnyvale, California, that sells exclusively through authorized channel partners and does not transact direct with end users. The company's core product is the Zultys MX platform, an open-standards SIP-based IP phone system built on SIP, MySQL, VXML, CSTA, TAPI, and SYSLOG, which runs identically as on-premise hardware (MX-E up to 2,000 users, MX-SE II up to 50 users), a VMware-Ready virtual appliance (MX Virtual supporting 40,000+ users), a fully hosted cloud service (Zultys Cloud Services), or a hybrid Hardware-as-a-Service deployment (HaaS) with bundled SIP trunks. On top of the MX platform sits ZAC (Zultys Advanced Communicator), a Windows/Mac desktop client with Web ZAC and Mobile ZAC variants providing voice, video, IM, SMS/MMS, conferencing, visual voicemail, integrated fax, and a pre-packaged Integrated Contact Center (ICC) with SuperView, Wallboard, MX Report, and Call Attached Data.
The platform differentiates on deployment flexibility and breadth of CRM/telephony integrations (Salesforce, Microsoft Dynamics, HubSpot, Zoho, 100+ CRMs via Flex Plus, plus Microsoft Teams, Outlook, and Exchange integrations), with the April 2026 Release 19 adding AI-powered productivity tools (live closed captions, transcription, sentiment analysis) and a standalone Zultys AI Receptionist product. Revenue is generated through five streams: recurring subscriptions (Zultys Cloud Services and HaaS on 3- or 5-year terms requiring 100+ users), one-time on-premise license sales, hardware (IP phones and analog-to-SIP gateways), professional services/implementation delivered via partners, and the emerging AI Receptionist line. The company serves a heterogeneous customer base across healthcare (HIPAA-compliant deployments), education (K-12 and higher ed via ClassLink/PEPPM), professional services, real estate, retail/automotive, financial services, and multi-location enterprise, with no publicly disclosed revenue or funding history.
Zultys, Inc. firmographics
Firmographics- Name
- Zultys, Inc.
- Legal name
- Zultys, Inc.
- Website
- https://zultys.com
- Company type
- Private
- Founded year
- 2006
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Zultys is a Sunnyvale-based unified communications vendor selling an open-standards SIP-based MX platform (on-premise, virtual, cloud, or hybrid HaaS) with the ZAC desktop/mobile client and integrated contact center, distributed exclusively through authorized channel partners to SMB, multi-location, and enterprise customers across healthcare, education, financial services, and retail.
- Ownership category
- akta.pro rank
Zultys, Inc. industry classification
Industry- Product category
- Unified Communications
- NAICS
- Wired Telecommunications Carriers (517111), Computer Systems Design and Related Services (54151), Wired and Wireless Telecommunications (except Satellite) (5171)
- SIC
- Services-Telephone Interconnect Systems (7385), Computer Communications Equipment (3576), Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Cloud PBX & Hosted Telephony (HDAIAHAB)
- akta.pro secondary industries
- Contact Center (CCaaS) & Customer Engagement Voice (HDAIAHAF), Unified Communications & Contact Center for Workplace (UCaaS/VoIP, Meeting Rooms) (BPAEAIAE)
Keywords
Where Zultys, Inc. is headquartered
LocationHeadquarters
- HQ city
- Sunnyvale
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Zultys, Inc. business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- Unified Communications Subscriptions (Zultys Cloud Services): Fully hosted and managed Zultys MX system delivered as a cloud service with packages for standard business users, premium UC capabilities, and Integrated Contact Center. Recurring monthly subscription revenue.
- Hardware as a Service (HaaS): Premise-based deployment that emulates UCaaS delivery with per-user, per-month pricing. Includes phones and PBX equipment through monthly service. Requires 100+ users (excluding lobby users) and 3- or 5-year contract. SIP trunks included with no separate carrier bills.
- Hardware Sales (IP Phones & Gateways): Sale of IP phone hardware including ZIP 49GA, ZIP 47GE, ZIP 45G, Z 23GE, Z 22G, Z 21i models; and analog-to-SIP gateways (MG2, MG4, MG8, MG32, MG48).
- On-Premise Licenses: Sale of on-premise MX phone systems including MX-E (300/1000/2000 users), MX-SE II (up to 50 users), and MX Virtual (up to 40,000+ users). Same software and features across all deployment types.
- Professional Services & Implementation: Implementation engineering services, customer installation support, and technical training provided to channel partners and end customers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | HaaS (Hardware as a Service) — per-user, per-month pricing with true hybrid deployment |
Go-to-market motion1 record
Distribution channels5 records
Marketing channels7 records
Zultys, Inc. product offering
Product offeringCore offering
Zultys provides unified communications and integrated contact center platforms for businesses, delivered through on-premise IP-PBX appliances, virtualized instances, cloud-hosted services, and hybrid deployments. The same software stack runs across all deployment models, paired with desktop, browser, and mobile clients, IP phones, and SIP gateways for end-to-end business communications.
Product overview
Zultys, Inc. offers a unified communications platform with integrated contact center capabilities, available across on-premise, virtualized, cloud-hosted, and hybrid deployment models with the same software and feature set. The core product portfolio includes the ZAC unified communications client (available as desktop application, Web ZAC browser client, and Mobile ZAC mobile app), the MX Series IP phone systems (MX-E for enterprise up to 2000 users, MX-SE II for small/branch offices up to 50 users, and MX Virtual for virtualized deployments), Hardware as a Service (HaaS) as a true hybrid delivery model, and Zultys Cloud Services for fully hosted solutions. The Integrated Contact Center (ICC) comes pre-integrated into ZAC as a single pane of glass solution. AI-powered capabilities introduced in Release 19 include live closed captions, transcription, sentiment analysis, and the new standalone Zultys AI Receptionist product. Application integration features include Flex/Flex Plus for CRM screen pops, Advanced IVR for intelligent call routing, Data Connect for call logging into CRM, plus Microsoft Teams/Outlook integration and Salesforce Communicator. The product line also includes a full IP phone suite (ZIP 49GA, ZIP 47GE, ZIP 45G, Z 23GE, Z 22G, Z 21i), analog-to-SIP gateways (MG series), and various contact center tools including SuperView, Wallboard, MX Report, and Webchat.
Differentiator
Problem solved
Functional benefit
Brands
- ZAC: Zultys Advanced Communicator - unified communications client for Windows, Mac, and web browsers providing voice, messaging, video conferencing, and contact center functionality.
- Mobile ZAC
- Integrated Contact Center (ICC)
- MX Series
- Hardware as a Service (HaaS)
- Zultys AI Receptionist
- Zultys Flex
- Flex Plus
- Data Connect
- Zultys AI Auto Attendant
Products and services
- MX-E IP-PBX An on-premise IP-PBX appliance designed for medium-sized businesses requiring a dedicated communications system, supporting up to a high capacity of users and devices with built-in UC and contact center features.
Quantifiable outcome
- 99.999% target reliability with multiple redundant data backup centers monitored 24/7/365
- +5 more outcomes
Companies that use Zultys, Inc.
Customer profileNamed customers13 records
Segments8 records
Ideal customer profiles1 record
Zultys, Inc. technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration25 records
AI capability9 records
Feature10 records
Zultys, Inc. partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core and minor.
- ClassLinkcoreZultys achieved ClassLink Telephony Certification as a ClassLink Certified Partner. The integration delivers Single Sign-On (SSM) and Multi-Factor Authentication (MFA) through ClassLink for the SLED (state, local, education) market. Users can log in once and access ZAC, Web ZAC, and Mobile ZAC without extra passwords. ClassLink supports over 20 million students and staff across 3,000+ school systems.
- VMwarecoreMX Virtual runs on VMware Ready virtual appliances. Zultys has designed products to operate across VMware virtualization infrastructure. MX Virtual is a VMware-certified server hosting solution.
- MicrosoftcoreDeep integration with Microsoft ecosystem including ZAC for Teams (managing Zultys calls within Teams interface), Direct Routing for Teams, Microsoft Outlook Communicator (click-to-dial, presence sync), Microsoft Exchange Communicator (voicemail/fax to email sync), and Entra ID / Azure AD for automated user provisioning.
- SalesforcecoreZultys Salesforce Communicator embeds full call controls in the sidebar of every Salesforce page. Agents can manage calls directly from a contact record with click-to-dial, hold, park, transfer, and recent call activity. Call notes, history, and logs auto-save. Works with Salesforce Professional, Enterprise, and Unlimited Editions plus Lightning Ready compatibility.
- PEPPM Cooperative PurchasingminorZultys hardware and software solutions are available through the PEPPM cooperative purchasing program, giving schools, government agencies, and educational institutions a streamlined procurement path without the requirements of a formalized RFP process.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
Zultys, Inc. competitors and assessment
Company assessmentDirect peers
- 8x8: Public UCaaS and CCaaS provider offering integrated cloud communications and contact center solutions. Directly competes with Zultys across mid-market and enterprise segments.
- RingCentral: Public UCaaS and CCaaS market leader offering cloud-based business communications across voice, messaging, video, and contact center. Direct competitor to Zultys MX platform across SMB and enterprise segments.
- ShoreTel (now part of Mitel): Business phone system provider known for hybrid on-premise/cloud UC deployments and channel partner model. Highly comparable to Zultys's MX-E and MX Virtual appliance-based architecture.
- Mitel: Business communications provider offering UCaaS, on-premise, and hybrid deployments with strong channel partner model. Closely comparable to Zultys's hybrid deployment approach and channel go-to-market.
- Sangoma Technologies: UCaaS and PBX provider offering cloud, on-premise, and hybrid communications with a channel partner model. Comparable to Zultys in deployment flexibility and partner-driven sales.
Broad incumbents
- Zoom (Zoom Phone): Cloud-native UCaaS offering bundled with widely deployed Zoom Meetings. Direct competitor to Zultys in the SMB and mid-market with strong brand recognition.
- Cisco (Webex Calling): Enterprise UCaaS/CCaaS from Cisco as part of the broader Webex collaboration platform. Comparable to Zultys at the enterprise tier; Cisco is also a SIP interoperability partner for Zultys endpoints.
- Avaya: Enterprise communications provider offering UCaaS, CCaaS, and on-premise solutions with channel partner distribution. Comparable to Zultys across enterprise multi-location deployments.
- Vonage (now part of Ericsson): Cloud communications provider offering UCaaS, CCaaS, and APIs as part of Ericsson's broader portfolio. Comparable to Zultys across UCaaS/CCaaS with broader enterprise reach.
- Microsoft (Teams Phone): Native Teams Phone UCaaS bundled within Microsoft 365 ecosystem. Direct substitute risk for Zultys; Zultys's ZAC for Teams integration explicitly coexists with this offering.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Zultys, Inc. social profiles
Digital presenceZultys, Inc. compliance and trust
Trust signalCompliance1 record
Zultys, Inc. financial estimates
Financial estimateRevenue estimate
Valuation estimate
Zultys, Inc. leadership team
Management profileNumber of profiles
Profiles2 records
Zultys, Inc. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Zultys, Inc. 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 Zultys, Inc.
What does Zultys, Inc. do?
Zultys provides unified communications and integrated contact center platforms for businesses, delivered through on-premise IP-PBX appliances, virtualized instances, cloud-hosted services, and hybrid deployments. The same software stack runs across all deployment models, paired with desktop, browser, and mobile clients, IP phones, and SIP gateways for end-to-end business communications.
Is Zultys, Inc. a public or private company?
Zultys, Inc. is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Zultys, Inc. founded?
Zultys, Inc. was founded in 2006. It employs 101 to 250 people.
Where is Zultys, Inc. based?
Zultys, Inc. is headquartered in Sunnyvale, United States, in the North America region.
How does Zultys, Inc. make money?
Five revenue lines are on record. Unified Communications Subscriptions (Zultys Cloud Services) is the primary driver. The others are hardware as a Service (HaaS), hardware Sales (IP Phones & Gateways), on-Premise Licenses and professional Services & Implementation.
Who are Zultys, Inc.'s main competitors?
Direct peers on record are 8x8, RingCentral, ShoreTel (now part of Mitel), Mitel and Sangoma Technologies. Broad incumbents are Zoom (Zoom Phone), Cisco (Webex Calling), Avaya, Vonage (now part of Ericsson) and Microsoft (Teams Phone).
Does Zultys, Inc. have an API?
No public API is recorded for Zultys, Inc..
What industry is Zultys, Inc. in?
Zultys, Inc.'s product category is Unified Communications. Its primary akta.pro industry code is HDAIAHAB, Cloud PBX & Hosted Telephony, with a secondary code of HDAIAHAF, Contact Center (CCaaS) & Customer Engagement Voice. Its NAICS code is 517111 and its SIC code is 7385.