Notation Capital is a Brooklyn-based venture capital firm specializing in early-stage investments. Founded in 2015 by Nick Chirls and Alex Lines, the firm focuses on partnering with technical founding teams at the very beginning stages of their startups, often before they have a market-ready product. Notation Capital's mission is to increase the odds of success for product-obsessed founders by providing capital, resources, and mentorship to help them scale and go to market.

The firm emphasizes building a strong community among its portfolio companies, advisors, limited partners, and broader network, fostering collaboration and mutual support. Notation Capital invests across various sectors, including software, healthcare, artificial intelligence, and clean technology, with a particular focus on underestimated geographies outside traditional startup hubs like Silicon Valley. The firm typically leads the first round of financing and often invests as early as the idea stage.

Notation Capital is known for its commitment to inclusivity and diversity, valuing a wide range of perspectives and backgrounds within its community.