Limbach Holdings, Inc. (LMB) is a rare red-hot small cap company. This Zacks Rank #1 (Strong Buy) is up 85.9% year-to-date.Limbach is a building systems solutions firm specializing in revitalizing mission-critical electrical, plumbing, and mechanical/HVAC infrastructure within existing buildings.Headquartered in Pennsylvania, it works with building owners in six markets: healthcare, industrial and manufacturing, data centers, life science, higher education and cultural and entertainment.Limbach has more tha ...