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Top 179 UCaaS Platforms SaaS Companies in May 2026

As of May 2026, there are 179 SaaS companies in UCaaS Platforms. They have combined revenues of $4.1B and employ 16.4K people. They have raised $2.2B and serve 4M customers combined.

Unified Communications as a Service (UCaaS) platforms provide organizations with a comprehensive suite of communication tools delivered over the internet. These platforms integrate various functionalities such as voice calling, video conferencing, messaging, and collaboration within a single interface, enhancing both internal and external communications. Typically utilized by enterprises to streamline processes, UCaaS solutions facilitate seamless communication across different devices and locations, supporting remote work and reducing reliance on traditional telephony systems. Common use cases for UCaaS include improving team collaboration, enhancing customer service, and supporting sales operations through efficient communication workflows. Typical features of UCaaS platforms may include call management, video meetings, instant messaging, file sharing, and integrations with other business applications such as CRM and productivity tools. Target users often include IT departments, sales teams, customer support professionals, and HR departments, all seeking to enhance communication efficiency and effectiveness within their organizations.

Companies
179
Revenue
$4.1B
Funding
$2.2B
Employees
16.4K

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Sorting: Highest -> Lowest

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Top UCaaS Platforms Companies

Showing 10 of 6 companies ranked by annual revenue.

1
Bird (Formerly MessageBird)

Amsterdam, North Holland, Netherlands

a cloud communications platform to communicate with customers through various channels such as SMS, voice, chat, and email.

Revenue
$900M
Customers
15K
Year founded
2011
Funding
$1.1B
Team size
165
Growth
39.31%
2
unifonic

Saudi Arabia

Provider of solutions intended for cloud communications industry

Revenue
$750M
Customers
5K
Year founded
2006
Funding
$271M
Team size
423
Growth
363.07%
3
New Era Technology

New York, New York, United States

Global technology service provider offering unified communications, data networking, cloud and physical security to enterprise and midsize companies

Revenue
$263.3M
Customers
-
Year founded
2013
Funding
-
Team size
1.8K
Growth
-
4
Call Center Studio

United States

Call Center Studio's cloud-based contact center software revolutionizes customer interaction through seamless omnichannel communication management, facilitating a unified approach to customer service across multiple platforms—be it phone, email, chat, or social media. Designed for remote operations, this software empowers businesses with real-time reporting and performance tracking features, enabling instant visibility into contact center dynamics. By harnessing the power of Call Center Studio, businesses can significantly boost agent productivity and enhance the customer experience (CX). The platform's advanced tools and analytics help in identifying areas for improvement, optimizing workflows, and ensuring that every customer interaction is efficient and effective. With Call Center Studio, companies of all sizes can achieve superior service delivery, fostering stronger customer relationships and driving business growth. All these valuable aspects fuel us into becoming one of the best tech companies and creating a 100% scalable, cost-efficient, and user-friendly cloud-based software that helps other businesses create their own best experiences for both their customers and agents. And for that, Call Center Studio is favored by 700+ (and counting) global BPOs and businesses of all scales.

Revenue
$151.3M
Customers
-
Year founded
2018
Funding
-
Team size
1.4K
Growth
-
5
NFON

Munich, Bayern, Germany

NFON AG is a pan-European cloud private branch exchange provider in Germany. It solutions offered by the company include Nconnect Voice, Ncontactcenter, Nhospitality, Neorecording and Nvoice for Skype for Business.

Revenue
$147.8M
Customers
40K
Year founded
2007
Funding
$9.7M
Team size
340
Growth
1342.21%
6
Willdix

Tallinn, Estonia

The First Sales-Oriented Unified Communications Solution Your communications system can either boost your revenue or create bottlenecks that slow your business down. Turn it into the core of your operations and grow your business, all while saving time and maintaining total security. All in complete comfort, right from your browser. HOW CAN SMALL AND MEDIUM BUSINESSES INCREASE THEIR PRODUCTIVITY? It doesn’t take hours and hours of overtime. By choosing the right UC&C system, companies can improve communications and significantly increase productivity. Since 2005, Wildix has been helping companies grow their businesses through UC&C, by creating the first web-based VoIP PBX UC&C system. The first 100% secure, easy-to-use, professional web-based UC&C system. Wildix is for companies that want to increase their productivity with a secure-by-design tool. 👉 more business: +52% increase in web sales 👉 better efficiency: 25% time saved on everyday operations 👉 100% security Wildix brings value to companies around the world, with offices in Europe and the United States. The Center for Research and Development in Odessa, Ukraine has been in operation since 2007, deploying and supporting products. Only Wildix helps companies grow with 100% secure products that put the latest technology at their service. #Wildix #unifiedcommunications

Revenue
$100M
Customers
-
Year founded
2005
Funding
-
Team size
319
Growth
-

Inclusion Criteria

- Must provide integrated voice, video, and messaging services. - Should support real-time communications across various devices and platforms. - Must include collaboration tools such as screen sharing and file sharing. - Should offer integrations with third-party applications and tools. - Targeted primarily at businesses requiring scalable communication solutions. - Not just a basic messaging or calling app; must also include comprehensive features for collaboration and integration.