Horizon Technology Finance Corporation operates as a business development company (BDC) with a core focus on providing financing and making equity investments in businesses in their early growth phases. The firm primarily offers secured debt and venture loans to companies that have already secured funding from venture capital firms. Its investment interests span various industries, including technology, life sciences, healthcare information and services, and clean technology. Geographically, Horizon Technology Finance Corporation directs its investments towards companies situated within the United States.