unified-communications
(32)
AB Soft
AB Soft spent more than two decades doing something unfashionably durable: building the engineering bench behind another company's communications platform. Its narrow focus is both the business's advantage and its biggest dependency.
RingCentral
The company that dragged the office phone into the cloud is now betting the whole switchboard on AI agents that answer, route, and read the room.
8x8
One company built its whole pitch on erasing the line between the phone on your desk and the call center that answers your customers. Here is how 8x8 turned four decades of telephony into an AI-driven customer-experience platform.
REVE Systems
For more than two decades, a company born in Dhaka has quietly wired the plumbing behind millions of internet phone calls - one softswitch, one dialer, one SMS gateway at a time.
XCALLY
Streamline customer interactions with AI-driven Omnichannel software
Nextiva
A phone company that decided phone calls were only the beginning. How Nextiva turned a VoIP line for small businesses into an AI platform that runs a billion customer conversations a year.
Mitel
For half a century Mitel has run the office phone. After a 2025 debt reset, the Canadian veteran is betting that hybrid - part on-premises, part cloud, part AI - is where enterprise communication actually lives.
GoTo
Powering a world of work without limits.
Dialpad
The company that turned every phone call into data is betting its future on AI agents that answer before you finish asking.
ComputerTalk
Contact Center with AI for Modern Customer Experiences
UJET Wants to Kill the Call Center Mitel Helped Build
San Francisco's UJET calls itself CCaaS 3.0 and treats the phone as an app, not a switchboard. Ottawa's Mitel spent fifty years wiring the old way - now both are racing to work out what a human agent even does once the AI picks up first.
Broadvoice
CX Built For Where Your Business is Going Next. Broadvoice replaces overbuilt, underperforming communications platforms with cloud calling, contact-center, and AI tools built for small and mid-sized businesses.
Avaya
The 25-year-old telecom spinoff that answers the phones for most of the Fortune 100 is betting its second act on hybrid AI-powered customer experience - without asking anyone to rip out what already works.
Vonage
Vonage is a cloud communications company that lets businesses and developers add voice, video, SMS, messaging and network-based verification to their apps and customer operations. Once a pioneer of home internet phone service, it reinvented itself as a platform business built on APIs, unified communications and contact-center software, and is now a wholly owned subsidiary of Ericsson operating as its Global Communications Platform.
Zoom
Zoom is an American communications technology company that built its name on simple, reliable video meetings and has since expanded into a broad workplace collaboration platform. Founded in 2011 by former Cisco WebEx engineer Eric Yuan and headquartered in San Jose, California, Zoom now offers meetings, phone, chat, rooms, docs, a cloud contact center and an AI Companion assistant under the Zoom Workplace brand. The company went public on Nasdaq in 2019, saw explosive adoption during the COVID-19 pandemic, and today serves individuals, small businesses and large enterprises with roughly $4.9 billion in annual revenue.
ComputerLand of Silicon Valley
ComputerLand of Silicon Valley (legally CCT Technologies Inc.) is a San Jose-based technology solutions provider and value-added reseller founded in 1991. Over three decades it grew from a storefront computer sales-and-service shop into a full-service IT partner delivering cloud, cybersecurity, managed services, network infrastructure, virtualization, unified communications and IT logistics to government agencies, K-12 and higher-education institutions, and commercial businesses across California and beyond. A longtime approved E-Rate and NASPO ValuePoint reseller and Microsoft authorized education reseller, the company was acquired by cloud and cybersecurity firm ISSQUARED Inc. on May 1, 2024.
DTEN
DTEN is a San Jose-based hardware company that builds all-in-one video conferencing and collaboration devices for hybrid workplaces, schools, and healthcare. Founded in 2015 by Wei Liu and closely tied to Zoom, DTEN pioneered the all-in-one touchscreen meeting appliance with its D5 and D7 lines and today ships AI-enhanced systems certified for both Zoom Rooms and Microsoft Teams Rooms, combining 4K cameras, microphone arrays, touch whiteboarding, and cloud device management in a plug-and-play package.
Intermedia Intelligent Communications
Intermedia Intelligent Communications is a Sunnyvale, California cloud communications company that bundles voice, video, chat, SMS, contact center, business email, file sharing and archiving into a single AI-powered platform. Founded in 1993 as a business email and web hosting provider, it now serves more than 130,000 businesses, largely through a channel of thousands of resellers and managed service providers. Its flagship Unite (UCaaS) and Intelligent Contact Center (CCaaS) products, layered with its SPARK AI suite, aim to replace a stack of separate communication vendors with one reliable, secure system aimed squarely at small and midsize organizations.
ZENOPS
ZENOPS (styled ZenOps) is a San Francisco Bay Area managed IT services provider based in Pleasant Hill, California, serving small and mid-sized organizations across healthcare, legal, nonprofit, education, real estate, and municipal sectors. Formerly known as Neighborhood Computers, the firm pairs day-to-day IT support with cybersecurity, cloud infrastructure, unified communications, and its signature 'Harmonious Workflow' approach - evaluating how a whole organization actually uses technology, then removing the repetitive tasks and friction so teams can get back to their real work.
Yobi
Yobi is an AI workforce platform that lets businesses deploy task-specific 'AI employees' - synthetic agents that answer calls, reply across text and social channels, book appointments and sync data 24/7. Founded by Ahmed Reza and built around named agents like Kate (reception), Marie (support) and Carlos (operations), Yobi unifies calls, messaging, CRM and team collaboration so small and mid-sized teams stop switching tools and start automating the busywork.
ProTelesis Corporation
ProTelesis Corporation is a San Diego-based managed services provider (MSP/MSSP) born from the 2019 merger of two California telecom heavyweights - Protel (a leading Mitel Blue dealer) and Xtelesis (a leading Mitel Orange dealer). The company has evolved from a traditional phone-system business into a full-stack technology partner delivering managed IT, cybersecurity, unified communications, cloud, structured cabling, and managed detection and response. With offices across California, the Pacific Northwest, Utah, and Bangalore, it supports thousands of clients and hundreds of thousands of endpoints, with a focus on biotech, defense, and growing small-to-midsize businesses.
Questivity
Questivity is a Santa Clara IT infrastructure integrator and training house. Founded in 1999, it designs, deploys, and supports the unglamorous plumbing of enterprise technology - networking, security, servers, storage, and virtualization - for mid-size and large organizations, and runs a parallel learning arm that hires, trains, and deploys engineers in Cisco, VMware, and data center disciplines. Its pitch is vendor-neutral: solve the client's problem with the right gear, on budget, rather than whatever a single manufacturer is selling.
Mio
Mio is an Austin, Texas company that makes enterprise chat platforms talk to each other. Instead of forcing a whole organization onto a single tool, Mio sits in the middle and federates the public APIs of Microsoft Teams, Slack, Google Chat, Zoom Team Chat and Cisco Webex so a message typed in one app lands natively in another. Founded in 2015 by Tom Hadfield and James Cundle and backed by Y Combinator, Khosla Ventures, Zoom and Cisco, Mio turns the messy reality of multi-platform companies (and the partners they work with) into a single, interoperable conversation.
Tom Hadfield
Tom Hadfield is the British entrepreneur and CEO of Mio, an Austin-based company that makes enterprise chat tools like Microsoft Teams, Slack and Google Chat talk to each other. He is the kid who built Soccernet with his dad at 12 and sold it to ESPN for $40 million at 17, attended Harvard, ran a biotech, then went through Y Combinator to attack the problem of messaging interoperability with backing from Khosla Ventures, Cisco and Zoom.
Webex
Webex is the collaboration platform born from one of the web's first conferencing companies and now run by Cisco. It bundles meetings, calling, messaging, webinars, contact center, and a line of conference-room hardware into a single suite, layered with AI for transcription, real-time translation across dozens of languages, and agent assistance. It serves enterprises, governments, schools, and hospitals that need secure, large-scale communication for distributed teams.
Joe Burton
Joe Burton is the Chief Executive Officer of Reputation, the San Ramon-based reputation experience management platform. A career technologist who started as a software engineer and was acquired into Cisco in 2001, he went on to lead Plantronics (later Poly) as CEO, then Telesign, before taking the helm at Reputation in October 2023. His operating range spans big data, machine learning, SaaS, unified communications, and IoT.
Vasili Triant
Vasili Triant is the CEO of UJET, an AI-powered cloud contact center platform backed by $183M in funding and built on Google Cloud. With over 20 years spanning Cisco, Serenova, LiveOps, and ShoreTel, he has navigated virtually every inflection point in enterprise communications - from on-premise PBX to cloud-native AI. Appointed sole CEO in April 2025 after serving as CBO, COO, and Co-CEO, Triant now leads UJET's push to reshape customer experience with agentic AI orchestration, deep CRM integration, and a mobile-first architecture that treats the smartphone as the default CX channel.
PanTerra Networks
PanTerra Networks is a San Jose-based UCaaS provider that bundles voice, video, messaging, file sharing and an AI contact center into one cloud platform called Streams.AI. Founded in 2001 by Silicon Valley engineer Arthur Chang, the company sells to mid-market businesses that want one vendor instead of five, and points to a 99.999% uptime record and HIPAA-compliant SmartBox file sharing as its main differentiators.
Mike Promotico
Mike Promotico is the President and CEO of ProTelesis Corporation, a San Diego-based managed IT services provider he has helped build into a West Coast powerhouse over 37+ years in telecommunications. Starting as a principal at INet Corp in 1987 and helping grow it into one of North America's largest Mitel resellers, Promotico has spent three decades bridging the gap between traditional telecom and modern IT - co-founding Technology Assurance Group, leading Standard Tel Networks, and ultimately guiding ProTelesis through eight strategic acquisitions including the 2025 cyber-physical convergence play with Amer-X Security. Under his leadership, ProTelesis manages over 100,000 endpoints for more than 10,000 customers across the U.S.
Michael Gold
Michael Gold is the Chairman and CEO of Intermedia Intelligent Communications, a Sunnyvale-based AI-powered cloud communications company serving over 150,000 businesses through a network of 7,500 channel partners. Since co-leading Intermedia's acquisition in 2011, Gold has grown the company's revenues and profits more than 7x, transforming it from a hosted email provider into a comprehensive UCaaS and CCaaS platform. A Stanford MBA and electrical engineer by training, Gold is a veteran cloud services operator who previously founded Zlago, led Sphera (acquired by Parallels), and served as SVP at Qwest Communications. His signature strategy - selling through partners who resell under their own brands - has made Intermedia a quiet powerhouse behind some of the biggest names in business communications.