Contact
- Mailing Address
- Attn: Walter Langille, Treasurer 25 Colgate RdRoslindale, MA 02131
- Phone
- (508) 579-4029 David J Mastroianni, President Listed on the 2025 LM-3 report (opens in new tab)
Officers 8
-
David Mastroianni
President
-
Alex Cruz
Financial Secretary
-
Walter Langille
Treasurer
-
Brandon Walsh
Vice President
-
Brady Walsh
Recording Secretary
-
Lair Gomes
Trustee
-
Rafael Rodrigues
Trustee
-
Jacobe Merrill
Trustee
An executive officer can send the current list.
Federal Filing
- Members Reported
- 136
- Last Report
- 2025
- Form
- LM-3
- File Number
- 27993
Members as the union reported them on its 2025 LM-3 report. Counts may include retirees and associate members.
NLRB cases for Local 48 Elections and unfair labor practice charges on LaborLab Search
Sources 2
- OLMS LM-3 report, 2025 (file no. 027-993) (opens in new tab)
Checked Oct 12, 2026
- OLMS filings for file no. 027-993, labordata.bunkum.us (opens in new tab)
Checked Oct 12, 2026
Listings come from public filings with the U.S. Department of Labor and from the organizations' own websites, as of the dates under Sources. Details change, and we may have them wrong. Check with the organization before you rely on them. Use Suggest an Edit above to tell us what's out of date.