OtterSign, founded in 2020 and headquartered in Boulder, Colorado, develops digital waiver and participant management software for the outdoor and activity industry. The company's platform provides tools for eSignatures, document automation, payment processing, and customer retention marketing, serving businesses ranging from rock climbing gyms and rafting outfitters to shooting ranges and summer camps.
The company operates within the legal tech and compliance domains, addressing the specific documentation and liability management needs of activity-based businesses. Its platform is used by more than 10,000 daily active users across a diverse set of verticals that include ATV and snowmobile rentals, zip lining operations, fitness centers, paddle rental shops, archery ranges, and nonprofits.
OtterSign's core product is an all-in-one platform designed to manage, sign, and automate documents, consolidating what would otherwise require multiple separate tools into a single system tailored to the operational requirements of outdoor recreation and activity providers.





