Second Nature AI vs 100ms

About

Second Nature AI is an AI-powered sales training and role-play platform founded in Israel and headquartered globally, enabling revenue teams to practice sales conversations with realistic AI personas. In October 2025, the company raised a $22 million Series B led by Sienna VC and supported by Zoom (also a customer), Bright Pixel, StageOne Ventures, Cardumen, and Signals VC, bringing total funding to over $37 million.\n\nSecond Nature's technology builds a data model of each company's sales playbook by analyzing recorded calls, marketing collateral, and scripts, then generates a library of AI-driven role-play scenarios mirroring the most common conversations reps encounter. After each practice session, reps receive personalized feedback and performance scores across dimensions like objection handling, discovery quality, and closing behavior. The platform supports 20 languages and multiple conversational styles, and new customers can deploy their first AI role-plays within an hour of onboarding.\n\nCustomers report a 33% reduction in onboarding time and a 20%+ increase in sales for teams like GoHealth. Second Nature competes with Mindtickle and Brainshark for sales readiness market share, differentiating on the depth and realism of its AI conversation engine. The October 2025 funding will support global expansion and deeper integration of personalized coaching and certification workflows into enterprise training systems.