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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Tammy Spencer | Springfield, MA | — | DesignerInspector | 13832 |
| Tara Garani | Reading, MA | — | Designer | 14977 |
| Tara Gurge | Needham, MA | — | Designer | 2726 |
| Tara M. Sochia | Douglas, MA | — | DesignerInspector | 14271 |
| Tara Walsh | Westfield, MA | — | Designer | 14785 |
| Taylor Avitabile | Hingham, MA | — | Designer | 14263 |
| Ted P. Doucette | — | — | Inspector | 4680 |
| Ted P. Doucette | Littleton, MA | — | Designer | 2815 |
| Terence Galvin | — | — | Inspector | 14987 |
| Terrence McSweeney | Hanson, MA | — | Designer | 1594 |
| Terrence Reynolds | Florence, MA | — | Designer | 3090 |
| Terri A. Guarino | Cotuit, MA | — | Designer | 13770 |
| Teryn A. Hermenau | — | — | Inspector | 15199 |
| Tessa Obuchowski | Ludlow, MA | — | Designer | 15155 |
| Thad D. Berry | Reading, MA | — | Designer | 154 |
| Thaddeus Szkoda | Charlton, MA | — | Designer | 14359 |
| Thomas A. Holopainen | — | — | Inspector | 13203 |
| Thomas A. McIntosh Iii | Medway, MA | — | Designer | 14772 |
| Thomas A. McKean | Hyannis, MA | — | Designer | 1563 |
| Thomas Boothby | Marlborough, MA | — | Designer | 15165 |
| Thomas Carcieri | Rehoboth, MA | — | Designer | 15041 |
| Thomas Curran | — | — | Inspector | 14531 |
| Thomas DiModica | — | — | Inspector | 2226 |
| Thomas G. Carbone | Ward Hill, MA | — | Designer | 319 |
| Thomas Greenwood | Westford, MA | — | Designer | 14597 |
| Thomas Hector | Groveland, MA | — | Designer | 2887 |
| Thomas Hibert | Springfield, MA | — | DesignerInspector | 14033 |
| Thomas J. Fitzgerald | — | — | Inspector | 1271 |
| Thomas J. Fitzgerald | Southwick, MA | — | Designer | 760 |
| Thomas J. Griffin | Billerica, MA | — | Inspector | 14315 |
| Thomas J. Hogan | Southampton, MA | — | Designer | 1079 |
| Thomas Johnson | Hadley, MA | — | Designer | 1141 |
| Thomas Kampe | Leicester, MA | — | DesignerInspector | 15043 |
| Thomas M. Silvia | — | — | Inspector | 3001 |
| Thomas M. Silvia | Swansea, MA | — | Designer | 13617 |
| Thomas M. Stello | — | — | Inspector | 14193 |
| Thomas M. Stello | Harwich, MA | — | Designer | 14122 |
| Thomas MacDonald | — | — | Inspector | 14944 |
| Thomas Morris | Berkley, MA | — | Designer | 13881 |
| Thomas P. Purcell | — | — | Inspector | 731 |
| Thomas P. Purcell | Oxford, MA | — | Designer | 1981 |
| Thomas P. Snell | Bridgewater, MA | — | Inspector | 2155 |
| Thomas P. Snell | West Bridgewater, MA | — | Designer | 2278 |
| Thomas Pozerski | — | — | Inspector | 3670 |
| Thomas Pozerski | Plymouth, MA | — | Designer | 2840 |
| Thomas Ryder | Natick, MA | — | Designer | 2121 |
| Thomas S. Leue | — | — | Inspector | 130 |
| Thomas S. Leue | Ashfield, MA | — | Designer | 1368 |
| Thomas Sachs | Danvers, MA | — | Designer | 14778 |
| Thomas Schomburg | Haverhill, MA | — | Designer | 14779 |
| Thomas W. Hardman | — | — | Inspector | 1702 |
| Thomas W. Hardman | Dartmouth, MA | — | Designer | 1005 |
| Thomas W. Harrington | — | — | Inspector | 14865 |
| Thorsen Akerley | Gloucester, MA | — | Designer | 14016 |
| Tim Grant | Beverly, MA | — | Designer | 14900 |
| Tim Lovell | — | — | Inspector | 14587 |
| Tim Marble | Avon, MA | — | Designer | 12912 |
| Timothy A. Coon | — | — | Inspector | 1547 |
| Timothy A. Coon | Granby, CT | — | Designer | 437 |
| Timothy B. O'Connell | North Falmouth, MA | — | Designer | 11295 |
| Timothy Clancy | — | — | Inspector | 14729 |
| Timothy Clark | Sandwich, MA | — | Designer | 15196 |
| Timothy D. Paris | Westborough, MA | — | Designer | 1847 |
| Timothy E. MacGregor Jr. | — | — | Inspector | 14381 |
| Timothy E. Maginnis | — | — | Inspector | 1039 |
| Timothy E. Maginnis | Westhampton, MA | — | Designer | 1454 |
| Timothy J. Fontaine | Ludlow, MA | — | DesignerInspector | 14687 |
| Timothy J. Grace | Easthampton, MA | — | Designer | 14117 |
| Timothy J. Hall | — | — | Inspector | 4572 |
| Timothy J. Rotti | — | — | Inspector | 14202 |
| Timothy J. Williams | — | — | Inspector | 10809 |
| Timothy Konowitz | — | — | Inspector | 13403 |
| Timothy M. Gearin | — | — | Inspector | 3827 |
| Timothy M. Reed | — | — | Inspector | 198 |
| Timothy M. Rivers | Hills, MA | — | DesignerInspector | 14666 |
| Timothy M. Santos | — | — | Inspector | 4561 |
| Timothy M. Santos | Somerset, MA | — | Designer | 2146 |
| Timothy Meyers | Easton, MA | — | DesignerInspector | 12899 |
| Timothy Newton | Orange, MA | — | Designer | 14299 |
| Timothy Penney | — | — | Inspector | 14726 |
| Timothy Quirk | Dennis, MA | — | Inspector | 14685 |
| Timothy Shea | Boston, MA | — | Designer | 15182 |
| Timothy Twohig | Barrington, RI | — | Designer | 14783 |
| Timothy Wicks | Haverhill, MA | — | Designer | 14416 |
| Todd Bateson | — | — | Inspector | 16 |
| Todd Ehwa | — | — | Inspector | 13635 |
| Todd J. Silva | — | — | Inspector | 13466 |
| Todd M. Pilling | — | — | Inspector | 189 |
| Todd M. Pilling | Berkley, MA | — | Designer | 1941 |
| Todd MacDonald | South Yarmouth, MA | — | Designer | 14157 |
| Todd Sexton | — | — | Inspector | 14327 |
| Tom Bastarache | — | — | Inspector | 14096 |
| Tomielee Graca | — | — | Inspector | 15130 |
| Tommy McSparren | North Kingston, RI | — | Designer | 15118 |
| Tonya Capparello | — | — | Inspector | 4820 |
| Tonya Capparello | Wilbraham, MA | — | Designer | 12484 |
| Traci Mello | Stoneham, MA | — | Designer | 14673 |
| Tracy Lee Duarte | Freetown, MA | — | Inspector | 4537 |
| Tracy Lee Duarte | East Freetown, MA | — | Designer | 3008 |
| Tracy M. Sharkey | — | — | Inspector | 13379 |
| Tracy Mayo | — | — | Inspector | 4891 |
| Tracy Mayo | Duxbury, MA | — | Designer | 3095 |
| Tracy Sharkey | Oxford, MA | — | Designer | 13491 |
| Travis Good | — | — | Inspector | 84 |
| Travis St. Hilaire | Clinton, MA | — | Designer | 13888 |
| Trent Kellum | — | — | Inspector | 14855 |
| Trevor Bruso | Brookfield, MA | — | Inspector | 14640 |
| Trevor Bruso | North Brookfield, MA | — | Designer | 14751 |
| Trevor Fletcher | Baldwinville, MA | — | Designer | 14233 |
| Troy Rich | Fitzwilliam, NH | — | Designer | 14960 |
| Troy Stearns | Plaistow, NH | — | Designer | 15084 |
| Troy Williams | Dennis, MA | — | Inspector | 682 |
| Tucker Paradee | Marlborough, MA | — | Designer | 14773 |
| Tucker Wilkinson | — | — | Inspector | 14713 |
| Tyler Ancahas | — | — | Inspector | 14719 |
| Tyler Brenton | — | — | Inspector | 14481 |
| Tyler Gearin | — | — | Inspector | 14689 |
| Tyler Glode | Framingham, MA | — | Designer | 14569 |
| Tyler Judd | Gloucester, MA | — | Designer | 14566 |
| Tyler King | Holliston, MA | — | Designer | 14353 |
| Tyler LaFreniere | N Attleboro, MA | — | Designer | 14617 |
| Tyler Murphy | — | — | Inspector | 15058 |
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