Aertsen Ventures Aertsen Ventures is a private venture capital and investment firm founded in 1999 and based in Boston, Massachusetts, United States. The firm serves as the investment vehicle for its principal and makes early-stage equity investments in technology-oriented companies and other opportunities, including commercial real estate and related sectors. Its activity has blended venture capital and private equity approaches to support nascent businesses with capital and strategic engagement. Leadership includes experienced investment and finance professionals with backgrounds in corporate and real estate investing. The firm operates with a long-term perspective on early-stage and alternative investment opportunities.