We are proud to be a signatory contractor or member of these organizations
- SMART Local 1 in Central Illinois
- SMART Local 17 in Boston, Massachusetts
- SMART Local 20 in Northwest Indiana
- SMART Local 24 in Ohio
- SMART Local 66 in Western Washington
- SMART Local 67 in San Antonio and Austin, Texas
- SMART Local 73 in Chicago, Illinois
- SMART Local 265 in Chicago Suburbs
- SMART Local 312 in Salt Lake City, Utah
- SMART Local 359 in Phoenix, Arizona
- SMART Local 441 in Mobile, Alabama
- Plumbers Local Union 3 in Denver, Colorado
- Plumbers and Pipefitters Local Union 32 in Seattle, Washington
- Plumbers Local Union 130 in Chicago, Illinois
- Plumbers, Pipefitters, and Welders Local 146 in Fort Worth, Texas
- Plumbers and Pipefitters Local Union 149 in Savoy, Illinois
- Plumbers and Pipefitters Local Union 172 in South Bend, Indiana
- Pipefitters Local Union 208 in Denver, Colorado
- Plumbers Local Union 210 in Northwest Indiana
- Steamfitters Local Union 250 in Los Angeles, California
- Plumbers and Pipefitters Local Union 286 in Austin, Texas
- Plumbers and Pipefitters Local Union 322 in New Jersey
- Plumbers and Pipefitters Local Union 342 in Oakland, California
- Plumbers and Pipefitters Local Union 354 in Youngwood, Pennsylvania
- Steamfitters Local Union 420 in Philadelphia, Pennsylvania
- Plumbers and Pipefitters Local Union 469 in Phoenix, Arizona
- Plumbers and Steamfitters Local Union 486 in Baltimore, Maryland
- Plumbers and Pipefitters Local Union 572 in Nashville, Tennessee
- Pipefitters Local Union 597 in Chicago, Illinois
- Steamfitters Local Union 601 in Milwaukee and Madison, Wisconsin
- International Brotherhood of Electrical Workers Union 134 in Chicago, Illinois
- Plumbing Contractors Association of Greater Chicago
- Mechanical Contractors Association of Chicago
