Supplier directory
Updated
UCaaS and business voice suppliers in the Software Results portfolio
These are the UCaaS and business voice suppliers we can put in competition for your phone system: cloud platforms, Microsoft Teams voice, SIP trunking, and the collaboration tools around them. The list is the portfolio we advise across, not a ranking. The advice costs you nothing, and you sign directly with the supplier you choose.
What UCaaS and business voice suppliers sell, and who buys it
UCaaS and business voice covers everything a company talks through: cloud phone systems delivered per user, meetings and messaging in the same platform, SIP trunks that feed an existing PBX, and the voice services that make Microsoft Teams work as a phone system. The suppliers in this category range from national platforms with their own networks to specialist providers built around one ecosystem, and partners who package a platform with installation and support.
The buyers are IT leaders and operations leaders replacing an aging phone system, consolidating locations onto one platform, or moving voice into Teams or a CRM. Companies with customer-facing phone traffic, multiple sites, or a mix of office and field staff get the most out of a real comparison, because the seat price is the smallest part of what they will spend.
How we scope a UCaaS evaluation
We start with call flows and user types rather than feature lists: who answers customers, who needs a desk phone, who only needs a softphone, which lines are analog, and whether Teams is already the collaboration standard. Those answers become a written scope with user counts by tier, the sites and the numbers to port at each, and the integrations the platform must support.
Every shortlisted supplier prices that same scope in writing, including the line items around the seats: devices, common-area phones, toll-free usage, international calling, fax, SMS, and implementation. We normalize the proposals so a quote with a low seat price and heavy add-ons reads next to one with a higher seat price and nothing extra. You see the comparison before any demos are scheduled, and your team meets only the finalists.
All 82 UCaaS & Business Voice suppliers in the portfolio
Listed alphabetically, not ranked. Supplier names are listed for identification only and remain the trademarks of their owners. Listing here is not an endorsement by the supplier.
- 2talk
- 4Voice
- 8x8
- Adigo
- Aircall
- AudioCodes
- Avaya
- Avaya Cloud Office (ACO)
- Broadvoice
- Call One
- Caller ID Reputation
- CallTower
- Cisco
- Cloudli
- Coeo Solutions
- Crexendo
- Dialpad
- DynaLink Communications
- Evolve IP
- First Orion
- FirstComm (First Communications)
- FreeConferenceCall.com
- Fusion Connect
- Fuze (now 8x8)
- GigTel
- Google Voice
- GoTo
- Hiya
- Intermedia
- Intrado
- IPFone
- Juvo
- Level365
- Lifesize
- Lingo
- Microsoft Teams
- Momentum
- Net2Phone
- NetCarrier
- Nextiva
- NTT Cloud Communications
- Numeracle, Inc.
- NuWave Communications
- OneCloud Corporation (OneCloud)
- OnSIP
- Ooma
- PanTerra Networks
- Powervox
- ProFeatures
- Pure IP
- Qoolize
- RingCentral
- Ringover, Inc.
- Sangoma
- SCB Global
- SimpleVoIP
- Simplicity VoIP
- SIPPIO
- SolEx
- SpectrumVoIP
- Telespace
- Telesystem
- TeligentIP
- Telnyx
- TelSynergy
- TNS (Transaction Network Services)
- Total Communication Solutions (TCS)
- TouchTone Business
- Ultatel
- UniVoIP
- Utility Telecom
- Verve
- Vidyo (an Enghouse company)
- VinaKom
- VocalIP
- Volli Communications
- Vonage
- Voxox
- Wildix
- ZIRO
- Zoom
- Zultys
Missing a name you expected? Ask us. If a supplier fits your requirement, reaching them through an advisor still costs you nothing. You can also search the whole portfolio.
Ask About a SupplierSourcing questions
How many UCaaS suppliers should we ask to quote?
Three to five, chosen for fit rather than name recognition. Fewer than three and the market has not actually competed. More than five and your team spends its evaluation hours on demos that were never going to win. The right three to five depend on your shape: a Teams-centric company shortlists differently from a company with heavy inbound call traffic or a hundred small sites. We choose the shortlist after the scope is written, not before.
Should we shortlist a platform directly or a partner that packages it?
Both can sit on the same shortlist, and the comparison is worth running. Buying directly from the platform usually means the platform's own support model and standard implementation. A partner may add local installation, device provisioning, number porting management, and a single support contact, sometimes at the same per-seat price. The question to settle in writing is who you call when a site goes down, and what the packaged price includes that the platform alone does not.
What should the scope include so UCaaS quotes compare on the same math?
User counts by license tier, the number of sites and the phone numbers to port at each, the devices you intend to keep and the ones you need, analog needs such as fax, alarm, and elevator lines, calling patterns including toll-free and international, and the integrations that matter, such as the CRM or Teams. With that written down once, every supplier prices the same company, and the differences in the proposals are real differences instead of differences in assumptions.
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