| 11:11 Systems | Cloudflare | FirstComm | Natural Wireless |
| 8×8 | CMC Networks | FirstLight | Net2Phone |
| 911 inform | CMS360 | Five 9 | Netrality Data Centers |
| ACC Business | Coeo Solutions | Flexential | NETRIO |
| Access One | Cologix | Frontier | NetWolves |
| Advantix | Colt | Fusion Connect | Network-Va lue , Inc |
| Aire Spring | Comcast Business and Masergy | Genesys | New Horizon |
| Allstream | CommandLink | Globalgig | Nextiva |
| Alocity | ConectUS | GlobalOnsite | NICE CXOne |
| Appgate | Console Connect by PCCW Global | GoExceed | nitel |
| APXNet | Consolidated Communications (CCI) | Google | Nord Security |
| Arvig | Content Guru | GoTo | Ntirety |
| Aryaka | Core BTS | Granite | NTT Cloud Communications |
| Assured Data Protection | CoreSite | GreenPages | NTT Global Data Centers |
| Astound Business Solutions | Coretelligent | GTT | Observe .AI |
| AT&T | Corvid Cyberdefense, LLC | iNET | Open Systems |
| AudioCodes | Cox Business | InflowCX | Optimum Business |
| Avail | Crown Castle | IntelePeer | Outsource Consultants |
| Avaya | CyrusOne | Intermedia | Palo Alto Networks |
| Avaya ACO | Cyxtera | Intrado | PanTerra Networks |
| BCN | Data Canopy | intY | Parala in |
| Bigleaf Networks | DataBank | iTel | PDI |
| BIO-key | Data Site | Joonto | Peerless Network |
| Blue Jeans | Deft | KORE Wireless | Pilot |
| Breezeline | Dialpad | Level AI | PPT Solutions |
| Bright Pattern | Digital Realty | Life size | Prodoscore |
| brightfin | Dobson Fiber | Lightpath | PS LIGHTWAVE |
| Broadvoice | DrawBridge | lingo | QOS Networks |
| BullsEye Telecom | Dynascale | Liquid Web | Quest |
| CSpire | Edify | LiveVox | Rackspace |
| Calero | Effectual | Logicworks | RapidSca le |
| CallMiner | Effortless Office | LOGIX Fiber Networks | Replicant |
| CallTower | EPIC iO | LSN | Retarus |
| Cato Networks | EQUINIX | Lumen | RingCentral |
| CBTS | eSentire | Magna5 | RingSquared |
| China Mobile International Limited | Everstream | Marco Technologies | SADA Systems |
| China Telecom Americas | Evolve IP | Mediacom | Sangoma |
| Cirion | Evoque | Megaport | ScanSource Professional Services |
| CIS | Expedient | MetTel | SharpenCX |
| Cisco | FiberLight | Mitel | |
| Claro Enterprise Solutions | First Orion | Momentum Telecom | |
