MassVentures is a Waltham, Massachusetts–based venture capital and innovation development organization established in 1978 by the Commonwealth of Massachusetts to address capital gaps for early-stage technology startups and fuel the state’s innovation economy. It operates as an evergreen venture fund focused on seed and early-stage deep tech and technology businesses, providing both dilutive equity investments and non-dilutive grants, business guidance, and network support to companies headquartered in Massachusetts. MassVentures emphasizes backing academic spinouts, diverse founding teams, and companies commercializing advanced technologies such as AI, biotech, cleantech, and advanced materials, with an economic development mandate to help create jobs and attract private capital. The organization combines capital deployment with strategic and operational assistance to help startups achieve commercialization, market traction, and scale, often collaborating with public and private partners across the ecosystem. It manages multiple programs including its venture fund, SBIR START grants, and clean energy awards, aligning with state initiatives to strengthen innovation infrastructure and early-stage growth across the Commonwealth.