Top 4 VoIP startups

Updated: Feb 28, 2026
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These startups develop IP-telephony services for cheap international calls via the Internet
1
Zadarma
Country: Ukraine
Cloud telecom and CRM system provider. Virtual numbers in 100 countries, Cloud PBX, Speech Recognition and Voice Analytics and more
2
Vonage
Vonage
Country: USA | Funding: $597M
Vonage is a B2B communications SaaS leader for a new era.
3
Dialpad
Dialpad
Country: USA | Funding: $450M
Dialpad offers a cloud-based business phone solution simplified for every business.
4
Ooma
Ooma
Country: USA | Funding: $98.4M
Ooma creates powerful connected experiences in small business telecommunications service, as well as affordable home security.
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Fernando Lopez
Editor: Fernando Lopez
Fernando Lopez is a senior editor for SaaStartups. He joined the company after having previously spent over three years at ReadWriteWeb. Prior to his work as a reporter, Fernando worked in I.T. across a number of industries, including banking, retail and software. Fernando graduated from the University of Buenos Aires (Computer Science). He is more-than-averagely interested in photography and can often be found with a camera slung over his shoulder. He wrote a book about pitching startups to investors. You can contact Fernando at fernandolopez(at)saastartups(dot)com