
Nintex eSign (formerly known as AssureSign) is an electronic signature solution provided by Nintex, a global leader in process automation. The platform enables organizations to streamline their document signing processes by allowing users to prepare, send, and sign documents digitally from anywhere. Nintex eSign integrates seamlessly with existing systems like Salesforce and Microsoft Dynamics CRM, making it a versatile tool for businesses across various industries. The platform focuses on automating document workflows, ensuring compliance with global security standards, and providing a customizable signing experience.
Nintex was founded in 2006 in Bellevue, Washington, and has since grown into a major player in the business process automation space. The company initially focused on workflow automation but expanded its portfolio through strategic acquisitions, including the acquisition of AssureSign in 2021, which became Nintex eSign. This acquisition allowed Nintex to enhance its digital transformation offerings by incorporating electronic signature capabilities into its broader automation suite.
Nintex has experienced significant growth over the years, driven by its ability to help organizations automate complex workflows and improve operational efficiency. With a focus on continuous innovation and customer-centric solutions, Nintex has expanded its product offerings globally.
Nintex is a privately held company backed by private equity firms such as Thoma Bravo and TA Associates, which have made substantial investments in the company to fuel its growth. While specific funding rounds for Nintex eSign are not publicly detailed, Nintex as a whole has received significant financial backing to support its acquisitions and expansion initiatives.
In 2018, Nintex was reportedly valued at around $2 billion following TA Associates' investment. Since then, the company has continued to grow through acquisitions and product development, likely increasing its valuation further.
Nintex eSign offers a comprehensive set of features designed to simplify and automate the eSignature process:
Document Automation: Users can dynamically create documents that need signatures and automate workflows before and after obtaining signatures.
Multi-Channel Signing: Documents can be signed online, via text (SMS), or in person. This flexibility allows businesses to close deals faster—up to 98% faster when using text-based signing.
Integration with Existing Systems: Nintex eSign integrates with popular platforms like Salesforce, Microsoft Dynamics CRM, G-Suite, and other CRMs. This allows businesses to send documents for signature directly from their existing systems without disrupting their workflows.
Customizable Signing Experience: Organizations can customize the signing experience with branding elements like logos and colors to provide a seamless customer experience.
Compliance and Security: The platform meets global security standards such as SOC 2 Type 2, ISO 27001:2013, HIPAA, GDPR, and FedRAMP Tailored. It also uses AES-256 encryption for data protection.
Nintex has grown significantly through strategic acquisitions aimed at expanding its product portfolio:
In 2021, Nintex acquired AssureSign (now Nintex eSign), adding electronic signature capabilities to its automation suite.
Nintex regularly updates its eSign platform with new features aimed at improving usability and functionality:
Recent updates have included improvements in bulk sending capabilities for envelopes (allowing multiple documents to be sent simultaneously) and enhanced integration features with platforms like Salesforce.
Nintex emphasizes a culture of innovation, customer success, and operational excellence. The company’s mission is centered around helping organizations simplify their processes through automation. They pride themselves on delivering solutions that are easy to use while offering powerful functionality. Nintex also promotes values such as:
Nintex serves over 10,000 customers worldwide across various industries including healthcare, finance, government, legal services, education, manufacturing, and more. Its user base ranges from small businesses looking for simple document signing solutions to large enterprises needing complex workflow automation integrated with eSignature capabilities. The company fosters an active user community through resources like:

Nintex eSign
By Nintex