Latka logo

Top 4 Online Fax Software Companies With $10M–$100M Revenue (September 2026)

As of September 2026, Latka tracks 4 online fax software companies with $10M–$100M in annual revenue. They have combined revenues of $225.2M and employ 2.2K people. They have raised $31.4M and serve 650K customers combined.

Every company below sells online fax software to other businesses and is ranked by its most recent annual revenue. Revenue, funding, headcount and customer figures come from CEO interviews on the Latka podcast, public company filings, and Latka estimates where a company has not disclosed a number.

What Online Fax Software Companies do

Online Fax Software provides a modern solution for sending and receiving faxes over the internet, bypassing traditional phone lines and physical fax machines. This software is commonly utilized in industries that require secure document transmission, including healthcare, finance, and legal sectors. Users can typically send faxes via an email interface or a web application, improving efficiency and accessibility while reducing reliance on outdated technology. Key features of online fax software often include customizable templates, secure storage and transmission options, document tracking, and compliance with relevant regulations like HIPAA for healthcare. Typical user personas include administrative professionals, compliance officers, and IT personnel who seek reliable and secure methods for handling sensitive documents. By integrating digital workflows, online fax solutions help streamline processes and enhance productivity in various business environments.

Companies
4
Revenue
$225.2M
Funding
$31.4M
Employees
2.2K

Filters

Sorting: Highest -> Lowest

Filters
Revenue
All<$1M$1M-$5M$5M-$10M$10M-$100M$100M+
Funding (Locked)Growth (Locked)Team-Size (Locked)

Top Online Fax Software Companies With $10M–$100M Revenue

Showing 4 of 4 companies ranked by annual revenue.

1Upland Software logo
Upland Software

Austin, Texas, United States

Upland Software (Nasdaq: UPLD) is a leader in AI-powered knowledge and content management software. Our solutions help enterprises unlock critical knowledge, automate content workflows, and drive measurable ROI—enhancing customer and employee experiences while supporting regulatory compliance. More than 1,100 enterprise customers rely on Upland to solve complex challenges and provide a trusted path for AI adoption.

Revenue
$93.3M
Customers
450K
Year founded
2010
Funding
$31.4M
Team size
848
2Consensus Cloud Solutions logo
Consensus Cloud Solutions

Los Angeles, California, United States

Consensus Cloud Solutions, Inc. (NASDAQ: CCSI) is a global leader in digital cloud fax technology. With over 25 years of success with eFaxⓇ at its core, the company has evolved to be a trusted provider of interoperability solutions, leveraging artificial intelligence and secure data exchange to transform digital information, automate critical workflows, and maximize operational efficiencies. Consensus maintains industry-leading compliance standards, making it a preferred partner for heavily regulated industries including healthcare, the public sector, financial services, insurance, real estate, and manufacturing. For more information about Consensus, visit consensus.com.

Revenue
$51.9M
Year founded
1995
Team size
472
3concord.net logo
concord.net

Seattle, Washington, United States

Concord Technologies is a leading provider of secure document exchange, intelligent document processing, and interoperability solutions to healthcare providers, payers, and other highly regulated businesses. For over twenty years, billions of sensitive records containing valuable patient information have been reliably, accurately, and securely sent and received across Concord’s digital health network. Today, the company processes over five billion pages of protected data annually. The company is also recognized for its best-in-class development of new artificial intelligence technologies, including Concord’s Practical AI™ approach to solving the most pervasive administrative challenges in the healthcare industry, and for its industry-leading applications that help its customers grow and manage their business.

Revenue
$49.6M
Year founded
1996
Team size
451
4Concord Technologies logo
Concord Technologies

Seattle, Washington, United States

Provider of IP fax services intended to make technological advancements in Cloud Fax services. The company's advanced network architecture provides unmatched high-availability, virtually unlimited capacity and industry leading reliability and its service is fully compliant with common government and industry regulations by providing complete encryption and data security and also offers fax online email-to-fax and fax-to-email system, which facilitate documents to be sent and received from computer or mobile device, enabling users to send and receive faxes from existing production software applications.

Revenue
$30.4M
Customers
200K
Year founded
1996
Team size
426

Frequently asked questions about Online Fax Software Companies With $10M–$100M Revenue

How many online fax software companies with $10M–$100M in annual revenue are there?

Latka tracks 4 online fax software companies with $10M–$100M in annual revenue. Together they generate $225.2M in annual revenue and employ 2.2K people.

Which online fax software company with $10M–$100M in annual revenue is the largest?

Upland Software is the largest, with $93.3M in annual revenue, founded in 2010.

How much revenue does a typical online fax software company with $10M–$100M in annual revenue make?

The average online fax software company in this list makes $56.3M a year, across 4 companies with reported revenue. They serve 650K customers combined.

Who are the leading Online Fax software vendors with $10M–$100M in annual revenue?

Ranked by annual revenue, the leaders are Upland Software, Consensus Cloud Solutions, concord.net and Concord Technologies.

How much funding have online fax software companies with $10M–$100M in annual revenue raised?

The 4 online fax software companies with $10M–$100M in annual revenue tracked here have raised $31.4M in disclosed funding between them.

Related Office Software categories

All Office Software SaaS categoriesEvery category we track inside Office Software, each ranked by revenue.Browse every SaaS industryThe full A-Z of SaaS categories Latka tracks, from Online Fax to everything else.

Inclusion Criteria

- The product must allow users to send and receive faxes electronically via the internet. - It should include features for document tracking and confirmation of receipt. - The service must comply with industry regulations relevant to data protection and privacy, such as HIPAA or GDPR. - Integration capabilities with existing software systems (e.g., email, document storage) are essential. - The solution should offer encryption for data security. - Not just a basic email-to-fax service; it must also provide advanced features like API support or analytics for users.