Polen Capital Management, in its Q2 2026 investor letter for the "Polen Focus Growth Strategy," stated that EMCOR Group, the largest mechanical, electrical, and plumbing specialty contractor in the United States, has seen approximately half of its recent revenue growth and increasing backlog related to data center and semiconductor factory construction. The firm believes EMCOR is a less obvious but critical bottleneck in AI infrastructure construction, benefiting from AI infrastructure spending, the reshoring of U.S. manufacturing, and semiconductor factory construction supported by the CHIPS Act, with demand for its services now exceeding supply.