Top 10 Online Fax Software Companies With $1M–$5M Revenue (September 2026)

San Francisco, California, United States

iFax is a leading healthtech platform that provides HIPAA-compliant, secure document transfer and digital cloud faxing solutions to millions of businesses and healthcare organisations.

Plan-les-Ouates, Geneva, Switzerland

Alohi streamlines communications and systems of agreements for startups, businesses and enterprises. Sign.Plus: Legally binding online signatures Fax.Plus: Online fax service Scan.Plus: AI mobile scanner

Holmdel, New Jersey, United States

Founded in 2009, ETHERFAX® provides an intelligent, software-defined network and suite of applications to facilitate the exchange of business-critical documents and information. ETHERFAX’s patented technology is widely utilized across a broad range of industries. Leveraging the cloud, artificial intelligence, and data extraction technologies, ETHERFAX helps organizations save time, money, and resources by automating processes and workflows. ETHERFAX's encrypted data exchange solutions operate in a HIPAA and SOC 2® compliant environment that ​is both HITRUST CSF® and PCI DSS certified.​

The Hague, South Holland, Netherlands

Provider of an optimized platform designed to improve business agility and reduce operating costs. The company's optimized platform helps in sending and receiving fax and messages from any business application or multi functional printer, enabling businesses to convert business documents into smart digital files for easy exchange inside and outside.

Portland, Oregon, United States

For nearly 30 years, FaxBack has been at the forefront of shaping fax technology. As a cutting-edge fax messaging company, FaxBack solutions radically simplify the way organizations communicate. We provide award-winning fax servers, FoIP boardless solutions, fax-on-demand, broadcasting and web-to-fax solutions that enable companies to communicate and deliver information faster, smarter and easier than ever. We have added to our product line new solutions to connect fax to VoIP communications, helping to stream line and unify communications.

Suffern, New York, United States

Medforce Technologies, Inc. provides productivity-enhancing software and services to help healthcare organizations adapt quickly to change and do more with less. Our flexible and highly-customizable document and process management products work in all departments including intake, claims and reimbursement, mailroom, AP and HR, and assist in daily decision making based on real time information and strategic priority. For a demonstration of the full capabilities of the Medforce solutions and how your office efficiency can increase, speak to a Medforce Solution Consultant at 845.426.0459 or visit www.medforcetech.com Medforce - The Power of Productivity

Centennial, CO, United States

WestFax is the leader in cloud based HIPAA compliant fax. Our powerful APIs enable you to send, receive and track your faxes effortlessly. Seamlessly send faxes from within your applications without the expense of complicated custom hardware and software solutions. Transform your business processes while dramatically improving productivity by adding the ability to fax from within your mission-critical software applications. WestFax provides the highest level of security for healthcare, government and financial organizations. WestFax is PCI and HIPAA compliant. We don’t just send your fax, we deliver it. Our software and TDM network manages the delivery process to give your fax the best chance of successful delivery and if something happens that keeps your fax from being delivered, we’ll tell you. WestFax is based in Greenwood Village, CO and is celebrating 20 years of excellence. Specialties: Fax Broadcast, Fax API (SOAP, REST, XML), Web Fax, Fax Forward and Broadcast Voice, SaaS, Cloud Services, Internet Fax, TDM, VOIP, HIPAA and Security. EHR, EMR, Medical Software, Pharmacy fill solutions, Pharmacy refill, Pharmacy Software Integration.

Vancouver, British Columbia, Canada

Fax leadership. Built for reliability. Connecting today’s fax to tomorrow’s workflows. For over 17 years, FaxSIPit has been at the forefront of secure, cloud-based fax innovation, helping organizations modernize how they send, receive, and integrate fax into their digital ecosystems. As a white-label hosted fax provider, we empower service providers, enterprises, and public sector organizations to deliver high-performance, secure fax solutions that seamlessly connect with SIP, VoIP, HTTPS, and virtual fax technologies. Our systems are engineered for dependability and monitored 24/7 to ensure consistent, worry-free delivery across hybrid and cloud environments. At FaxSIPit, we make faxing simple, secure, and connected, bridging the reliability of fax with the flexibility of modern communication workflows.

Knoxville, Tennessee, United States

HostMy helps businesses fulfill their missions without having to worry about managing their communications technology. HostMy is a U.S.-based, family-owned and operated hosted communications services provider that specializes in customer care, communications technology, and expert consulting for small and medium-sized businesses. The company was established in 1946 and began offering hosted voice services in 2001, making it one of the most experienced voice providers in the industry. Today, HostMy apps and services include hosted Voice, Text, Video, Fax, and Contact Center solutions.

Parker, Colorado, United States

FaxCore is an award winning fax server solution that integrates MFPs and PCs into on premise implementations or our cloud based fax solution. FaxCore integrates with Microsoft applications and Office 365. FaxCore is also a strategic partner of etherFAX, the fax board in the cloud. For more information, visit FaxCore at www.faxcore.com.