rules-engine
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Telerivet
Telerivet is a cloud communications platform that lets organizations send, automate, and orchestrate messages across SMS, WhatsApp, Voice, USSD, Viber and more - in any market, including the places bigger providers ignore. Born from a Peace Corps insight in Tanzania that most people have a phone but not the internet, it now powers enterprises, governments, NGOs and universities across 150+ countries with a drag-and-drop rules engine, APIs, and a phone-as-gateway model that reaches customers where the network is thin.
Vesta
Vesta is a San Francisco-based B2B SaaS company building the next-generation loan origination system (LOS) for the mortgage industry. Founded in 2020 by ex-Blend engineers Mike Yu and Devon Yang, Vesta replaces legacy mortgage software with a cloud-native, open, rules-driven platform that lets lenders configure workflows, automate compliance checks, and integrate with 40+ ecosystem partners - all without custom code. Backed by Andreessen Horowitz and Pennymac, Vesta tripled its loan volume and customer count year-over-year through 2025.
Brain Co.
Brain Co. is a San Francisco-based enterprise AI company that deploys production-ready AI applications for the world's most complex, regulated industries - from government and healthcare to hospitality, energy, and supply chain. Founded by a constellation of Silicon Valley heavyweights including Elad Gil and Dan Ashton, and backed by an elite roster of investors including Patrick Collison, Reid Hoffman, and Andrej Karpathy, Brain Co. raised a $30M Series A in September 2025. Its core technology converts dense regulatory documents into executable rules engines that make AI decisions auditable and compliant - so that governments can permit faster, hospitals can care better, and supply chains can run leaner.