6 Oct 2026 · TrustList Editorial
Island raises $400M to govern AI agents from its enterprise browser
The Series F, led by Evolution Equity Partners at a $6.4B valuation, pays for an "agentic control plane" that has no release date yet.
3 of 7 unified communications software ranked on evidence in the Q4 2026 edition.
Between them, the 7 unified communications software on this page cover audio / video conferencing (6), mobile access (6), chat / messaging (5) and file sharing (5). 7 of them have written a profile you can read before you get in touch.
TrustList ranking
Q4 2026 edition
3 of 7 unified communications software ranked on evidence held on 6 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.
Positions are fixed for the quarter; the next edition is due in January 2027.

Third Party Integration · Surveys & Feedback · Mobile Access
Workvivo is an employee experience platform that works as a company social network, intranet and mobile app in one place.
Why #1: No major incidents in 90 days (status page) · ISO 27001, SOC 2 Type II, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Audio / Video Conferencing · Chat / Messaging · Third Party Integration
Rocket.Chat is an open source communications platform that combines team messaging, voice, video and customer conversations in one system.
Why #2: ISO 27001, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Audio / Video Conferencing · IVR / Voice Recognition · Chat / Messaging
Video RTC is a video gateway from Interactive Powers. It connects endpoints that use WebRTC, RTMP and SIP, so voice calling, video calling, live chat, file sharing and screen…
Why #3: Uptime SLA, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Audio / Video Conferencing · IVR / Voice Recognition · Mobile Access
Tinkle is a cloud business phone system aimed at companies in the UK.

Audio / Video Conferencing · Chat / Messaging · Third Party Integration
pimentaCHAT is a unified collaboration and communication tool for organisations. It brings team messaging and calls into one product that can carry the customer's own branding.

Audio / Video Conferencing · IVR / Voice Recognition · Chat / Messaging
PortaSwitch is an integrated softswitch and billing platform. VoIP, OTT and telecom providers use it to set up, launch and earn revenue from communication services on IP networks.

Audio / Video Conferencing · Chat / Messaging · File Sharing
UC Software is Poly's unified communications software for businesses that run desk phones, headsets and video equipment. Poly is now part of HP.
For vendors
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Every other way we rank unified communications software, by what they do and where they are.
The newest guides and analysis from TrustList Insights.
6 Oct 2026 · TrustList Editorial
The Series F, led by Evolution Equity Partners at a $6.4B valuation, pays for an "agentic control plane" that has no release date yet.
6 Oct 2026 · TrustList Editorial
Diffusion and Lightspeed co-led the legal AI vendor's second round of 2026. Harvey says 80% of Am Law 100 firms use its tools; that figure…
6 Oct 2026 · TrustList Editorial
The Singapore company's first outside money, led by Jungle Ventures, pays for engineers in nine markets, an office in Japan and its NEO…
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