Top 19 Email Signature Software SaaS Companies in May 2026

Marseille, Bouches-du-Rhône, France

Deploy thousands of on-brand email signatures in just a few clicks, using pre-fill employee contact info. Design, manage and update email signatures across every employee’s device—from one dashboard.  Stop missing opportunities. Integrate highly-targeted marketing banners, calendar, rewards & more to all your email signatures to boost your business opportunities! Then, track their performance in our all-in-one dashboard.  Get the most out of your email signatures: 🌟 strengthen your brand image & awareness, ✊ ensure the commitment and information of your employees, 🎯 & accelerate your business opportunities through demand generation. Available on Microsoft 365 (Outlook) & Exchange. + Marketing automation tools such as Salesloft, Pardot, Outreach, Hubspot, Lemlist, etc. 🥇 Microsoft Gold Partner More than 1,000,000 users sign their emails with Letsignit. Among the historical references: Pernod Ricard, Sephora, Vinci Construction, Carglass, Stéphane Plaza, Suez, Kiloutou, Les Mousquetaires.

United States

WiseStamp is an email signature solution for both small and large companies. We help over 850,000 businesses and professionals worldwide to promote their businesses daily, become more visible, and demonstrate their professionalism. Our solutions: For small businesses – Create a professional email signature in less than 2 minutes with our award-winning generator. No HTML or design experience is needed. For companies – Create and manage email signatures for everyone in your company. WiseStamp email signature manager made for non-technical users. It's easy to use, you can make changes on the fly, assign and preview signatures, and create beautiful custom designs. Start a free 14-day trial, no credit card required. WiseStamp is a Premier Google Partner, winner of Mashable's Web Awards, and featured in all leading tech blogs. WiseStamp in numbers: » More than 850,000 active users » Tens of thousands of paying customers » More than 1,000,000,000 (1B) emails are sent with WiseStamp each year » More than 40 Apps » Users from 194 countries More: ☛ www.wisestamp.com