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Top 200 Business Instant Messaging Software SaaS Companies in May 2026

As of May 2026, there are 200 SaaS companies in Business Instant Messaging Software. They have combined revenues of $2.4B and employ 12K people. They have raised $1.3B and serve 332.6M customers combined.

Business Instant Messaging Software enables real-time communication among employees, allowing them to send and receive messages instantly regardless of their locations. This software often includes features like text chat, file sharing, group messaging, and integration with other workplace applications, making it essential for enhancing collaboration in modern workplaces. These tools are primarily used by organizations aiming to improve internal communication and streamline workflows. Common buyer personas include IT professionals for implementation and management, HR managers for employee engagement, and team leaders looking to facilitate quick decision-making processes. Many businesses implement this software to bolster remote work capabilities and foster an inclusive company culture by connecting employees effectively.

Companies
200
Revenue
$2.4B
Funding
$1.3B
Employees
12K

Filters

Sorting: Highest -> Lowest

Filters

Top Business Instant Messaging Software Companies

Showing 10 of 200 companies ranked by annual revenue.

1
Telegram

Dubai, Dubai, United Arab Emirates

Developer of an instant messaging application intended to communicate easily. The company's cloud-based application includes group chatting, documents sharing, message encryption, cloud storage and message synchronization across iOS, Android, Windows, macOS and Linux among other platforms, enabling users to stay connected with friends and family without a hassle.

Revenue
$1B
Customers
500K
Year founded
2013
Funding
-
Team size
1.8K
Growth
-
2
Symphony Communication Services

New York, United States

Symphony is the most secure and compliant markets’ infrastructure and technology platform, where solutions are built or integrated to standardize, automate, innovate and liquefy financial services workflows. The Symphony platform is a vibrant community of over half a million financial professionals from 1300+ market participants underpinned by a trusted directory and omnichannel interactions across chat, voice, web, meetings and more. Symphony powers over 2,000 community-built applications and bots. Symphony was founded in October 2014 and is headquartered in New York City, with offices in London, Palo Alto, Hong Kong, Singapore, Tokyo, Stockholm, and Sophia-Antipolis.

Revenue
$198.4M
Customers
500K
Year founded
2014
Funding
$511.7M
Team size
782
Growth
38.75%
3
Global Relay

Vancouver, BC, Canada

financial services archiving and analytics

Revenue
$189M
Customers
20K
Year founded
1999
Funding
-
Team size
1.5K
Growth
-
4
Blip

Belo Horizonte, Minas Gerais, Brazil

B2B SAAS for customer engagement

Revenue
$133.6M
Customers
-
Year founded
1999
Funding
-
Team size
1.6K
Growth
22.07%
5
QTrade

Shenzhen, Guangdong, China

Developer of instant messaging tools designed to provide professional community and trading platform for Finance industry. The company's platform provide financial practitioners with various solutions such as transaction communication, AI information processing, and institutional risk control compliance management.

Revenue
$65M
Customers
-
Year founded
2016
Funding
-
Team size
8
Growth
-
6
Getstream.io

Boulder, Colorado, United States

Activity feed and chat API service

Revenue
$43.2M
Customers
300M
Year founded
2015
Funding
$58.1M
Team size
274
Growth
-
7
Sendbird

San Mateo, California, United States

messaging platform for businesses

Revenue
$40M
Customers
422
Year founded
2013
Funding
$220.7M
Team size
300
Growth
11.92%
8
Mango Office

Moscow, Russia

Developer of a cloud based platform designed to offer help in business communication. The company's platform offers technologies that offer a modern communication system for improving key business indicators, that include sales funnel, customer satisfaction, business process efficiency, personnel qualification, operational management and analysis of the enterprise, enabling clients to improve their communication and improve their relationship with customers.

Revenue
$39.6M
Customers
200K
Year founded
2000
Funding
$10M
Team size
239
Growth
80.26%
9
Retarus

München, Bayern, Germany

Digital transformation is changing processes and supply chains, products and companies, entire industries and markets. Retarus supports businesses, enabling adaptation to these changes. With cloud services for digital business communication that enable the efficient and secure exchange of information. For people, applications, and machines. This is how more efficient business processes are developed. Processes that work better, are more flexible, agile, and transparent. Technological advances are changing day-to-day business. Everywhere. And faster than ever. Companies must act, adapt their processes, use innovation to enhance their capabilities. Communication plays a vital role. It has to be secure. Fast. Reliable. And above all, digital. And automated. That’s exactly what has been driving Retarus since 1992. Founded on the idea of linking the LAN email system cc:Mail to the public CompuServe email network using the Retarus-developed software platform CIS:Link, Retarus is now one of the leading international providers of secure and high-performance communication for business-critical processes. Tailored to the needs of the upper middle market and international corporations. Providing cloud platforms that secure all relevant channels of business information exchange from a single source. From email and fax, to SMS and EDI. For all standards. For all industries. And ready today for what tomorrow’s business will demand. We are proud that the world’s most successful companies appreciate our contribution to their value creation relying on our services for their business communication. Our vision is to be the global leader for enterprise-level cloud solutions, enabling business communication in a reliable, efficient, and compliant manner.

Revenue
$37.7M
Customers
-
Year founded
1992
Funding
-
Team size
343
Growth
-
10
Mattermost

Palo Alto, California, United States

open-source messaging and collaboration platform for teams

Revenue
$33.1M
Customers
-
Year founded
2016
Funding
$70M
Team size
156
Growth
59.99%

Inclusion Criteria

- Must facilitate real-time messaging for users - Should support file sharing and multimedia content delivery - Includes group messaging capabilities for team collaborations - Allows integration with other workplace applications and tools - Not just for messaging; must enable efficient team collaboration functionalities