Mesa Competitors

Slack is on a mission to make people's working lives simpler, more pleasant and more productive. It is the productivity platform for customer companies that improves performance by empowering everyone with no-code automation, making search and knowledge sharing seamless, and keeping teams connected and engaged as they move work forward together. As part of Salesforce, Slack is deeply integrated into the Salesforce Customer 360, supercharging productivity across sales, service and marketing teams. To learn more and get started with Slack for free, visit slack.com or connect with us @SlackHQ. Ensuring a diverse and inclusive workplace where we learn from each other is core to Slack’s values. We welcome people of different backgrounds, experiences, abilities and perspectives. We are an equal opportunity employer and a pleasant and supportive place to work. Come do the best work of your life here at Slack.

Personify partners with associations, chambers of commerce, nonprofits, event professionals, YMCAs, JCCs and other organizations to help them bring people and ideas together. Our technology platform, combined with our professional service and support, empowers organizations of all sizes at every step of their journey. Personify’s integrated solutions enable clients to build reliable revenue streams and achieve greater success, and our partnership means they never do it alone.

Donorbox is an all-in-one fundraising platform built to maximize every giving opportunity and strengthen donor loyalty. Powerful yet easy-to-use, our platform makes giving seamless both online and in-person. We empower nonprofits to connect with donors better and drive greater impact through branded donation forms with 22+ payment options, Live Kiosk, events, crowdfunding, memberships, text-to-give, an AI-powered CRM, and much more. Rated #1 on G2 and trusted by over 100,000 organizations globally, Donorbox has helped nonprofits raise over $3 billion to change the world. In 2026, we were named a Best Place to Work by Built In. If you're passionate about making a difference at a fast-growing, mission-driven tech company, check out our job openings!