The deal will result in over 500,000 square feet and $90 million of combined value for the two firms.
AV is a provider and servicer of water treatment services addressing contaminants in water infrastructure.
OneReach delivers services to Fortune 200 firms across financial services, retail, telecom, technology and CPG.
Grain Management LLC has appointed Tom Walker as managing director and chief financial officer.
Dreno provides a portfolio of pumps and accessories used across residential, civil, industrial and construction applications.