5 Best Small-Cap Data Center Cooling Stocks to Buy

4. Ameresco, Inc. (NYSE:AMRC)

Number of Hedge Funds: 22

Ameresco, Inc. (NYSE:AMRC) is one of the best small-cap data center cooling stocks to Buy. On June 23, Ameresco announced two Advanced Metering Infrastructure contracts with Baytown and Shenandoah, Texas, representing more than $5 million in combined investment. The projects will modernize water metering infrastructure with near real-time usage data, hourly consumption visibility, faster leak detection, and integration with each city’s utility billing platform.

This is not a direct data-center cooling contract, but it is still relevant to the cooling side of AI infrastructure because water efficiency is becoming a practical constraint for large, heat-intensive facilities. Ameresco already serves data centers through energy infrastructure and efficiency work, and its water-management capabilities add another layer to that positioning. The Texas contracts show a municipal-scale use case for reducing water loss and improving system visibility, the same type of operating discipline that becomes more important as cooling demand rises around power-dense data centers.

Ameresco, Inc. (NYSE:AMRC) provides energy efficiency, infrastructure modernization, distributed energy, and decarbonization solutions for public, commercial, industrial, utility, and data-center customers.