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Top 81 Other Email Software SaaS Companies in May 2026

As of May 2026, there are 81 SaaS companies in Other Email Software. They have combined revenues of $1.3B and employ 9.1K people. They have raised $80.7M and serve 200.1M customers combined.

Other Email Software encompasses a range of email solutions beyond traditional email clients and email marketing platforms. This category includes applications that focus on specialized functionalities such as email management, automation, and integration with other business tools. Common features may include advanced filtering, tagging, scheduling, and collaboration capabilities, which help users streamline their email workflows and enhance productivity. The primary use cases for Other Email Software are found in various departments within organizations, including sales, customer service, and project management. For instance, teams can utilize these tools to manage customer inquiries more effectively, track email interactions, and automate routine email communications. Common buyer personas typically include operations managers, sales professionals, and IT administrators, all seeking solutions to better manage email communications in a more structured and efficient manner.

Companies
81
Revenue
$1.3B
Funding
$80.7M
Employees
9.1K

Filters

Sorting: Highest -> Lowest

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Top Other Email Software Companies

Showing 10 of 10 companies ranked by annual revenue.

1
Stellar Data Recovery Inc.

Houston, Texas, United States

Recover dismounted and offline Exchange EDB files with precision using this advanced Exchange Recovery Software. Recommended by MVPs, it repairs corrupt EDB files and restores emails, attachments, contacts, calendars, notes, tasks, and journals.

Revenue
$97.5M
Customers
-
Year founded
-
Funding
-
Team size
542
Growth
-
2
Fastmail

Melbourne, Victoria, Australia

Fastmail is email, just better! For over 25 years, we've been the provider of choice for people and businesses who value security, privacy, and real human support - available 24/7. Our commitment is simple: We treat customers as people, not data points. That means no mining of personal data, no sharing with third parties, and no ads. Ever. We're building a better internet. As active leaders at the Internet Engineering Task Force (IETF), M3AAWG, and CalConnect, we champion open-source standard protocols and fight against the proprietary capture of email and calendar ecosystems by big tech giants. We work alongside other vendors to keep email and calendars open and interoperable for everyone. Why businesses choose Fastmail: ⭐Custom domain hosting with professional email addresses ⭐Seamless migration from any provider ⭐Advanced security features including 2FA and encrypted storage ⭐Reliable uptime and lightning-fast performance ⭐Team management tools without the complexity ⭐Real support from email experts, not chatbots Why individuals love Fastmail: ✔️Intuitive interface that actually makes email enjoyable ✔️Powerful search and organization tools ✔️Works beautifully across all devices ✔️Calendar integration that just works ✔️Take your email with you - no vendor lock-in Our difference: We're an independent, profitable company funded entirely by our customers. No venture capital, no pressure to monetize your data, no sudden pivots. Just sustainable, ethical email hosting that gets better every year. Whether you're an individual reclaiming control of your inbox or a business seeking reliable, ethical email hosting, Fastmail delivers excellence without compromise. Ready to experience email done right? Start your free trial today.

Revenue
$34.3M
Customers
-
Year founded
1999
Funding
-
Team size
312
Growth
-
3
ROLUSTECH

San Francisco, California, United States

Official SugarCRM and Salesforce Partners providing expert development and consultancy services.

Revenue
$28.4M
Customers
-
Year founded
2008
Funding
-
Team size
314
Growth
48.19%
4
Cloudian Inc

San Mateo, California, United States

Cloudian is the leader in data management software for the hybrid cloud. With military-grade security, limitless scalability and seamless cloud integration, Cloudian’s S3-compatible object storage lets users optimize data access, meet data sovereignty requirements and cut costs by consolidating information to a single, cloud-like platform. Cloudian’s geo-distributed architecture manages and protects object and file data at the edge, core, and in the cloud—for both conventional and modern applications. Learn more at cloudian.com.

Revenue
$22.9M
Customers
-
Year founded
2011
Funding
-
Team size
208
Growth
-
5
Open-Xchange

Koln, Germany

Open-Xchange is a provider of a platform for messaging and collaboration cloud application. The company provides open and customizable, cloud-based products which enable service providers to offer their customers scalable, self-branded services via customer engagement platform that integrates everyday digital life interactions. The company seeks to expand its business operations through mergers and acquisitions.

Revenue
$22M
Customers
200M
Year founded
2005
Funding
$68.5M
Team size
223
Growth
26.5%
6
Inogic

Navi Mumbai, Maharashtra, India

Inogic is a Microsoft Gold ISV Partner specializing in development of Innovative (Microsoft Preferred) Apps for Dynamics 365 CRM & Power Apps . With its large number of certified CRM developers having experience in CRM since its MS CRM 1.2 days and Research and Development commitment to continue working on cutting edge technologies and changing “Dynamics” in CRM industry, Inogic is consistently working towards providing low cost and high quality solutions for resellers and endusers. Inogic is the preferred destination for companies and resellers seeking offshore development centers for their Dynamics 365, Power Platform, Azure OpenAI, Copilot and Custom development work with its inherent strengths of technological talent and price advantages. Inogic brings the best of Global delivery model in this changing “Flat world” with the fusing of quick remote assistance and support and rapid product development methodology to its customer of products and services.

Revenue
$17.3M
Customers
-
Year founded
2006
Funding
-
Team size
157
Growth
-
7
SysTools

Pune, Maharashtra, India

SysTools is the leading name in the IT industry. Since its establishment, the company has assisted users across the globe in the field of Cloud Migration, Data Recovery, Digital Forensics, and Cyber Security. We are in the business of providing high-tech solutions and indigenous tools that offer users the solution they have been looking for. Our team has come up with 250+ robust and cost-effective IT solutions. In fact, we are the only Make-in-India company whose email forensics tool – MailXaminer is popular among well-known law enforcement agencies and recognized industries around the world. Walmart, SAP, APTEGRA, Columbia University, Delhi Police, Income Tax Department, etc are to name a few. Being an ISO 9001:2015 and 27001:2013 certified company, we are committed to delivering quality service to our clients. Over the years, we have built a strong team who are actively available 24X7 to give you the best experience. With the latest and advanced tools for forensic analysis, we have made our mark in the field of Digital Forensics. Slowly, we are making the digital space secure for users with our Managed Cybersecurity Services. Specialties Data Backup, Cloud Migration, Cloud Backup, Data Recovery, Digital Forensics, Email Forensics, Cybersecurity - SOC - NOC - VAPT services, and more.

Revenue
$15.8M
Customers
-
Year founded
2007
Funding
-
Team size
144
Growth
-
8
Floww

United Kingdom

Bringing transparency to the financial sector via an exceptional user interface. Creating greater liquidity in the private asset market.

Revenue
$15M
Customers
-
Year founded
2016
Funding
$6.7M
Team size
49
Growth
-
9
Digital Inspiration

Agra, Uttar Pradesh, India

Revenue
$12.1M
Customers
-
Year founded
2004
Funding
-
Team size
14
Growth
21%
10
Aryson Technologies

Noida, Uttar Pradesh, India

Aryson Technologies offers Data Recovery, Email Migration, Database Backup & Email Backup solutions for users globally. Aryson product uses worldwide in field of Data Recovery & Email Migration. We have millions of users in the world because our technologies is more powerful and user- friendly than other. Aryson Technologies provides safe and secure solutions since 2014 for Data Recovery & Email Backup. We make reliable and safe user friendly software which available online worldwide.

Revenue
$11M
Customers
-
Year founded
2014
Funding
-
Team size
100
Growth
-

Inclusion Criteria

- Must provide functionalities for email organization and management - Should include features for automation and workflow integration - Must support collaboration tools for team communication - Should cater to business use cases beyond marketing and standard communication - Not just an email client; must offer specialized features for email task management - Must be used in a professional setting for operational efficiency - Should enable advanced filtering and search capabilities