| Teamsters Local Union 404 | Related tax-exempt org | Representation of union members | MA | 041171377 |
| TRI State Joint Fund | Related tax-exempt org | 3rd party administrator for affiliated entities | CT | 060850110 |
| Berkshire Concrete Corp | Related taxable corporation/trust | — | MA | — |
| Berkshire Trans MGT CO | Related taxable corporation/trust | — | MA | — |
| YRC INC | Related taxable corporation/trust | — | KS | — |
| Sullivan Transport INC | Related taxable corporation/trust | — | MA | — |
| Titan Roofing | Related taxable corporation/trust | — | MA | — |
| United Parcel Service | Related taxable corporation/trust | — | OH | — |
| Williams Distrubuting | Related taxable corporation/trust | — | MA | — |
| Construction Service | Related taxable corporation/trust | — | MA | — |
| ET & L Construction | Related taxable corporation/trust | — | MA | — |
| New PENN Motor Express | Related taxable corporation/trust | — | PA | — |
| Ashland INC | Related taxable corporation/trust | — | MA | — |
| Arkansas BEST Freight | Related taxable corporation/trust | — | AR | — |
| American Environmental Group LTD | Related taxable corporation/trust | — | OH | — |
| Casella Waste CO | Related taxable corporation/trust | — | MA | — |