Top 38 Shared Inbox Software SaaS Companies in May 2026

San Francisco, California, United States

Collaboration and communication platform

San Jose, California, United States

customer service platform for shared inboxes

Utrecht, Netherlands

Developer of an online social application designed for improving communication channel in an enterprise. The company's application streamlines emails, social media and whatsapp messages, calls and collaborate in team inbox, providing enterprises an innovative solution to communicate with their clients via all communication and media channels through one shared inbox.

Quebec, Quebec, Canada

Unified communication and collaboration platform

Hamburg, Hamburg, Germany

Mailbutler is the leading email productivity extension for Microsoft Outlook, Apple Mail and Gmail that makes your inbox smarter. The extension offers email-enhancing features such as the ability to track emails and links, schedule emails to be sent later, snooze emails to free up your working day, create beautiful professional email signatures and templates, and now even have a smart assistant powered by Al! Mailbutler offers a simple solution to increase the capability of your inbox to handle personal- and work-related emails within a team or as a single user.

Hyderabad, Telangana, India

SmartReach.io is an easy-to-use, all-in-one, sales email automation software trusted by over 11,000 businesses in more than 100 countries. It's designed to let users find their next buyer, schedule and send personalized cold outreach and track results using an AI and an advanced scheduler with powerful APIs & integrations. With features like inbox rotation, free email verification, free email warmups, ESP matching, inbox placement, Spintax, spam test reports, and more to ensure your emails are read by their intended recipients. SmartReach.io provides a shared inbox so teams can increase productivity, collaborate faster, and ensure no deals are missed. It natively integrates with top CRMs like Salesforce, HubSpot, Pipedrive, and Zoho CRM with a two-way sync functionality Other features include a free meeting scheduler app, a free LinkedIn prospect list builder, an opportunity pipeline, full LinkedIn automation, a power dialer with advanced calling automation and more

West End, England, United Kingdom

Ideagen Mail Manager is a dynamic software company that delivers intelligent email management software. Ideagen Mail Manager supports over 3,500 businesses and 100,000 users across multiple industries worldwide. Our Mail Manager software was designed and developed in 2003 by the software house of Arup. In 2016, Mail Manager software transferred to its own company Mail Manager Limited, and today is part of Ideagen. Mail Manager reduces the time and complexity out of filing and searching for emails and attachments. Using AI, it quickly learns your filing behaviours and prompts you to file emails which can then be automatically deleted from your Inbox to keep it tidy. It simplifies every part of managing your emails, and gives you peace of mind that all your important data is safe and can be found by you and your team at the click of a button. By seamlessly integrating with Microsoft Outlook, Mail Manager makes filing, finding, storing and sharing emails a breeze, creating a more efficient way of working. Made for team collaboration, Mail Manager is a scalable software solution as our customers range from 5 users to businesses with more than 10,000 users.

United States

Tired of replying to emails? We do it for you.

United States

Desk365 is a cloud-based modern helpdesk for the Microsoft 365 workplace that helps you deliver outstanding customer service through channels like Microsoft Teams, Email, Web Forms/Widgets and more. Automate repetitive work and save time with Desk365’s intuitive, feature-rich web app that comes with a unified inbox to manage all your customer conversations. At Desk365, we are passionate about software and have been building business applications for over a quarter century. Headquartered in the San Francisco Bay Area, we take pride in empowering businesses to streamline their support processes and elevate their customer experience.

Ghent, East-Flanders, Belgium

Every day, front and back-office teams are fighting a messy inbox with orders, questions, complaints, and more. Tekst AI is here to streamline those business operations for enterprises. From classifying and prioritizing to automating and routing, we take care of the details & complexities so your team can lose the admin and win the customer.