Welcome to our comprehensive guide on FBI offices in Massachusetts. The Federal Bureau of Investigation (FBI) plays a crucial role in protecting communities by investigating federal crimes, terrorism, cyber threats, and more. In Massachusetts, all FBI operations fall under the Boston Field Office, which oversees the entire state along with Maine, New Hampshire, and Rhode Island. This division includes the main headquarters and several resident agencies—smaller satellite offices that handle local investigations and support the field office.

While the main office has publicly available contact details, resident agencies typically do not list separate addresses or phone numbers for security reasons. Instead, individuals are directed to contact the Boston Field Office directly for assistance related to any location in Massachusetts. You can report tips, crimes, or suspicious activities 24/7 via phone or online.

Below, we’ll cover the main office and known resident agency locations, along with pertinent details. This information is based on official FBI sources and is current as of September 2025. Always verify with the FBI for the latest updates.

Boston Field Office (Headquarters)

The Boston Field Office serves as the primary hub for FBI activities in Massachusetts. It employs hundreds of special agents and staff, focusing on counterterrorism, cybercrime, public corruption, civil rights, and violent crimes.

• Address: 201 Maple Street, Chelsea, MA 02150
• Phone: (857) 386-2000 (24/7 tip line for reporting suspicious activities or crimes)
• General Tip Line: 1-800-CALL-FBI (1-800-225-5324)
• Online Reporting: Submit tips anonymously at tips.fbi.gov
• Website: FBI Boston Field Office
• Territory Covered: Entire state of Massachusetts, plus Maine, New Hampshire, and Rhode Island.
• Key Pertinent Info: The office is located in Chelsea, just north of Boston, in a modern facility opened in 2017. It’s responsible for coordinating with local law enforcement on major cases, such as the Boston Marathon bombing investigation. For emergencies, contact local police first; the FBI handles federal matters.

Resident Agencies in Massachusetts

Resident agencies are smaller outposts managed by the Boston Field Office. They focus on local enforcement and intelligence gathering but do not have independent public contact lines. To reach a specific resident agency, call the Boston Field Office main line at (857) 386-2000 and specify the location or county. Use the same tip line and online form for reports.

Here are the known resident agencies in Massachusetts, along with the counties or regions they primarily serve:

1. Lakeville Resident Agency
   • Location: Lakeville, MA (Plymouth County area)
   • Counties Covered: Primarily Barnstable, Bristol, Dukes, and Plymouth counties (southeastern Massachusetts).
   • Pertinent Info: Handles investigations in the South Shore and Cape Cod regions, including white-collar crime and drug trafficking. No public address available.
2. Lowell Resident Agency
   • Location: Lowell, MA (Middlesex County area)
   • Counties Covered: Northern Middlesex County and surrounding areas.
   • Pertinent Info: Focuses on industrial and suburban threats, such as cybercrimes affecting local businesses. No public address available.
3. Springfield Resident Agency
   • Location: Springfield, MA (Hampden County area)
   • Counties Covered: Western Massachusetts, including Berkshire, Franklin, Hampden, and Hampshire counties.
   • Pertinent Info: Covers the Pioneer Valley and Berkshires, addressing issues like organized crime and border-related investigations near Vermont and New York. No public address available.
4. Worcester Resident Agency
   • Location: Worcester, MA (Worcester County area)
   • Counties Covered: Central Massachusetts, including Worcester County and parts of Middlesex.
   • Pertinent Info: Deals with urban crimes in the state’s second-largest city, including gang violence and economic espionage. No public address available.

Additional Resources and Tips

• Reporting a Crime or Tip: If you suspect federal crimes like fraud, terrorism, or human trafficking, use the 24/7 phone line or online form. Provide as much detail as possible without putting yourself at risk.
• FOIA Requests: For public records, submit via the FBI’s Freedom of Information Act portal at foia.gov.
• Career Opportunities: Interested in joining the FBI? Visit fbijobs.gov for openings in the Boston Division.
• Local Partnerships: The FBI collaborates with Massachusetts State Police and local departments—reach out to them for non-federal issues.
• Note on Privacy and Security: Due to operational security, detailed resident agency info is limited. The FBI emphasizes anonymous reporting to encourage public cooperation.

If you have urgent matters, always dial 911 first. Stay safe, and thank you for helping keep Massachusetts secure!

Sources: Official FBI website, Wikipedia list of field offices.