Top 18 Email Software SaaS Companies in May 2026

Springfield, Virginia, United States

Unified Email & Collaboration Hub. Secure professional email on own domain and revolutionary integration with chats. Shared calendars for smooth planning. Real-time collaboration for every team and project with TeamChat. Cloud storage so all your files are available anytime on all your devices. Online documents with easy sharing and collaborative editing. Desktop and Mobile apps. Completely developed in-house since 2001. With flexible development ensures ongoing development and fast support. Our goal is to always innovate through our services according to current trends and feedback from more than 50,000 actual customers.

Mumbai, Maharashtra, India

Optimising business processes through streamlined & seamless team collaboration solutions! With real-time collaboration tools, easy sharing options, integration of various virtual office functions and much more, today IceWarp is a true alternative to MS 365 and Google Workspace. IceWarp is the only platform through which users can complete all of their office work from a single window, without ever needing third-party applications. The fact that today IceWarp has 50 million paid users and 50,000 customers worldwide with a presence in more than 50 countries speaks volumes about the ease of use, security, and efficiency of IceWarp solutions. What’s more! IceWarp is completely developed in-house since 2001, with continuous development & updation.

New York, New York, United States

Customized cloud solutions for productivity.

Nijkerk, Nederland, Netherlands

Developer of a software designed to simplify the access to information and applications. The company's software offers the quickest way to simplify access and usability of all applications, combines information from third party applications and gives a personalized dashboard with insights in calendar, news, mail and documents, enabling small and large organizations to get email, document, news, applications, activities and time registrations in a single place.

Birmingham , England, United Kingdom

Blueberry has released a free Add-in for Microsoft Outlook, which allows users to experiment with ChatGPT within Outlook. The new Add-in allows users to configure custom prompts to run ChatGPT on selected email or new email.

San Francisco, California, United States

Fyxer AI organizes your inbox, drafts extraordinary emails in your tone of voice, and writes better-than-human meeting notes. 14 day free trial. Set up in 30 seconds. No credit card required. Pay and add your team later. Designed for teams that use Gmail, Outlook, Slack, Teams, Google Meet or Zoom.

Oakville, Ontario, Canada

Emailgistics is bringing a renaissance back to email, by providing a shared mailbox management solution for Microsoft Office 365. Powerful workflow and analytics features improve team productivity and decision making. Plus, with Emailgistics you continue working in Outlook as your email never leaves Office 365. Building on the knowledge gained over more than two decades of email workflow management, the Emailgistics team understands probably better than anyone else in the world both the challenges and opportunities of effective team email management. With Emailgistics, we are able to offer the benefits of that knowledge and experience in a subscription-based, cloud-hosted Software-as-a-Service platform.

United States

Mailbird offers a Windows email client for managing multiple accounts.

Copenhagen V, Region Zealand, Denmark

Xink offers a powerful, web-based solution for centrally managing email signatures across Microsoft 365 and Google Workspace environments. With the intuitive interface, you can effortlessly create, update, and deploy professional email signatures for all users across all devices. Leverage your email signatures as a marketing tool to deliver targeted campaigns, boost brand visibility, and engage your email audience effectively. Follow us: X: @XinkInc Facebook: Xink Email Signature Software #Outlook365 #Gmail

San Francisco, California, United States

Shortwave is an advanced email client that uses AI to enhance email management and productivity. It integrates with Gmail and Google Workspace accounts, offering features like email summarization, AI-powered writing assistance, smart inbox organization, and task management. The platform aims to streamline email workflows and reduce time spent on email-related tasks.