A Series B Investor is an individual or firm that provides funding to a startup company during its Series B round of financing. This stage typically occurs after the startup has achieved certain milestones and is looking to expand its operations, grow its market presence, and scale its business. Series B Investors usually invest larger amounts of capital compared to earlier rounds and often include venture capital firms and institutional investors.
Synonyms: Series B Funding Investor, Growth Stage Investor, Startup Series B Backer, Series B Venture Capitalist

Series B Investors play a crucial role in helping startups transition from early-stage companies to more mature businesses. Their funding supports product development, market expansion, hiring key staff, and increasing sales efforts. This investment helps startups build a stronger foundation for long-term success.
Startups use Series B funding to accelerate growth. This can include expanding into new markets, enhancing technology, increasing marketing efforts, and scaling operations. Series B Investors often bring valuable expertise, industry connections, and strategic guidance in addition to capital.
Common Series B Investors include venture capital firms that specialize in growth-stage investments, private equity firms, and sometimes corporate venture arms. These investors typically look for startups with proven business models and strong growth potential.