Angel Investor Forum

Angel Investor Forum is a group of investors who invest their own money in startup companies. Angel Investor Forum (AIF) was founded in 2004 in response to the growing need for an organized angel effort in Connecticut. Due to the widening gap in the capital markets, there is a shortage of funding available at the seed stage ($250K-$5M). This funding gap represents a great opportunity for investment in companies with substantial growth potential but an inability to attract venture capital. AIF members invest their time, talent and money in supporting companies with solid business models and their efforts to grow successfully.

Marty Isaac

President and Managing Director

Past deals in Fuel Cell

Nimbus Power Systems

Venture Round in 2025
Nimbus Power Systems focuses on creating a cleaner environment by designing and integrating zero-emission fuel cell systems specifically for heavy-duty markets. The company specializes in advanced cell technology, offering one-to-one replacements for diesel engines. Its innovative architecture enhances fuel cell performance and eliminates the need for a DC/DC converter. This enables clients to utilize hydrogen fuel cells that do not emit harmful pollutants, contributing to a sustainable energy future.
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