| Stephen Lynch for CongressCandidate committee | — | — | 3 | $744K |
| Stephen Lynch for SenateCandidate committee | — | — | 2 | $116K |
| Engineers Political Education Committee (EPEC)/International Union of Operating EngineersLabor union | Iuoe Local 965 Pef | — | 4 | $15,000 |
| Liberty Mutual Insurance Company - PACCorporate | Liberty Mutual Insurance Company | — | 4 | $12,500 |
| Carpenters Legislative Improvement Committee United Brotherhood of Carpenters and JoinersLabor union | United Brotherhood of Carpenters and Joiners of America | — | 2 | $10,000 |
| Machinists Non Partisan Political League of the International Association of Machinists & Aerospace WorkersLabor union | International Association of Machinists and Aerospace Workers | — | 2 | $10,000 |
| Sheet Metal Workers' International Association Political Action LeagueLabor union | Sheet Metal Workers International Association | — | 2 | $10,000 |
| United Association Political Education Committee (United Association OF Journeymen AND Apprentices OF THE Plumbing & Pipefitting Industry OF THE United States AND Canada)Labor union | — | — | 3 | $10,000 |
| Committee on Letter Carriers Political Education (Letter Carriers Political Action Fund)Labor union | — | — | 3 | $10,000 |
| National Association of Realtors Political Action CommitteeMembership org | Illinois Rpac Fed | — | 5 | $10,000 |
| D.R.I.V.E. Democrat, Republican, Independent Voter Education (THE PAC OF THE International Brotherhood OF Teamsters)Labor union | International Brotherhood of Teamsters | — | 2 | $10,000 |
| Amalgamated Transit Union - CopeLabor union | Amalgamated Transit Union | — | 3 | $10,000 |
| International Longshoremen's Association Afl-Cio Committee on Political Education Ila-CopeLabor union | International Longshoremen's Association, Afl-Cio | — | 2 | $10,000 |
| International Union of Painters and Allied Trades Political Action Together Political CommLabor union | International Union of Painters and Allied Trades | — | 2 | $8,500 |
| PAC for a Level Playing FieldIdeological / issue | — | — | 4 | $7,600 |
| American Association for Justice Political Action Committee (AAJ PAC)Membership org | American Association for Justice | — | 3 | $7,500 |
| United Parcel Service Inc. PACCorporate | UPSUnited Parcel Service Inc. | — | 2 | $7,500 |
| State Street Bank and Trust Company Voluntary Political Action CommitteeCorporate | — | — | 2 | $7,500 |
| National Active and Retired Federal Employees Association Political Action Com (Narfe-PAC)Membership org | National Active and Retired Federal Employees Association (NARFE) | — | 2 | $7,500 |
| Intl Union of Bricklayers & Allied Craftworkers PACLabor union | — | — | 2 | $7,000 |
| Investment Company Institute Political Action CommitteeTrade association | — | — | 3 | $7,000 |
| Massachusetts Mutual Life Insurance Company Political Action CommitteeCorporate | Massachusetts Mutual Life Insurance Company | — | 3 | $7,000 |
| FMR LLC Political Action Committee - Federal (Fidelity PAC)Corporate | — | — | 4 | $7,000 |
| International Brotherhood of Boilermakers Campaign Assistance FundLabor union | International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers & Help | — | 3 | $6,000 |
| Dealers Election Action Committee of the National Automotive Dealers AssociationTrade association | National Automobile Dealers Association | — | 2 | $6,000 |
| Pitney Bowes Inc. Political Action CommitteeCorporate | PBIPitney Bowes Inc. /De/ | — | 2 | $6,000 |
| Bank of America Corporation Federal PACCorporate | BACBank of America Corp. /De/ | — | 2 | $6,000 |
| National Elevator Constructors PAC/ Intn'l Union of Elevator Constructors (NEC PAC)Labor union | Int'l Union of Elevator Constructors | — | 2 | $6,000 |
| Chicago Bridge & Iron Company Political Action CommitteeCorporate | Chicago Bridge & Iron Company | — | 2 | $5,500 |
| American Dental Association Political Action CommitteeMembership org | American Dental Association | — | 1 | $5,000 |
| Political Educational Fund of the Building and Construction Trades Department, Afl-CioLabor union | — | — | 1 | $5,000 |
| United Steelworkers Political Action FundLabor union | Usw Works | — | 1 | $5,000 |
| SEIU Cope (Service Employees International Union Committee ON Political Education)Labor union | Service Employees International Union | — | 1 | $5,000 |
| Seafarers Political Activity Donation - Seafarers International Union of NA-Agliwd/NmuLabor union | — | — | 1 | $5,000 |
| Unite Here Tip Campaign CommitteeLabor union | Unite Here | — | 1 | $5,000 |
| National Association of Insurance and Financial Advisors Political Action CommMembership org | National Association of Insurance and Financial Advisors | — | 1 | $5,000 |
| American Federation of State County & Municipal Employees P E O P L ELabor union | — | — | 3 | $5,000 |
| United Mine Workers of America - Coal Miners Political Action CommitteeLabor union | United Mine Workers of America | — | 1 | $5,000 |
| Sheet Metal and Air Conditioning Contractors Political Action CommitteeTrade association | Sheet Metal & Air Conditioning Contractors' National Assoc., Inc. | — | 2 | $5,000 |
| International Brotherhood of Electrical Workers Political Action CommitteeLabor union | International Brotherhood of Electrical Workers | — | 1 | $5,000 |
| Utility Workers Union of America CopeLabor union | Utility Workers Union of America (THE Union) | — | 1 | $5,000 |
| National Treasury Employees Political Action CommitteeLabor union | — | — | 1 | $5,000 |
| Electrical Contractors Political Action CommitteeTrade association | National Electrical Contractors Association | — | 1 | $5,000 |
| National Multifamily Housing Council Political Action CommitteeTrade association | National Multifamily Housing Council | — | 2 | $5,000 |
| National Beer Wholesalers Association Political Action CommitteeTrade association | — | — | 1 | $5,000 |
| United Brotherhood of Carpenters/Joiners of Amer New England Reg Carpenters Legis Emp CmteLabor union | United Brotherhood of Carpenters Joiners New England Regional Council of Carpenters | — | 1 | $5,000 |
| New York Life Insurance Company Political Action CommitteeCorporate | New York Life Insurance Company | — | 1 | $5,000 |
| Ullico Inc. Political Action Committee (ULLIPAC)Corporate | Ullico Inc. | — | 1 | $5,000 |
| Faa Managers Association Inc. PACMembership org | Faa Managers Association | — | 1 | $5,000 |
| Emc Corporation Political Action CommitteeCorporate | — | — | 1 | $5,000 |
| Financial Services Institute PACMembership org | Financial Services Institute | — | 1 | $5,000 |
| Campaign for ChangeLeadership PAC | — | — | 1 | $5,000 |
| Blackrock Capital Management Inc. Political Action CommitteeCorporate | BLKBlackRock, Inc. | — | 2 | $5,000 |
| General Dynamics Corporation Political Action Committee (GDC PAC)Corporate | GDGeneral Dynamics Corp. | — | 4 | $4,500 |
| Nea Fund for Children and Public EducationLabor union | — | — | 1 | $4,000 |
| The Marty Meehan for Congress CommitteeCandidate committee | — | — | 2 | $4,000 |
| Mechanical Contractors Association of America Political Action Committee (MCA-PAC)Trade association | — | — | 3 | $4,000 |
| John Hancock Life Insurance Company (USA) Federal Political Action CommitteeCorporate | John Hancock Life Insurance Company (USA) | — | 2 | $3,500 |
| CDM Smith Inc. National PACCorporate | — | — | 2 | $3,500 |
| Vertex Pharmaceuticals Incorporated Political Action CommitteeCorporate | Vertex Pharmaceuticals Incorporated | — | 2 | $3,500 |
| American Federation of Govt. Empl. Political Action CommitteeLabor union | American Federation of Gov't Employees | — | 3 | $3,000 |
| Oppenheimerfunds, Inc. Political Action CommitteeCorporate | Oppenheimerfunds, Inc. | — | 1 | $3,000 |
| Putnam Investments, LLC Political Action Committee ('Putnam PAC')Corporate | — | — | 1 | $2,600 |
| United Food and Commercial Workers International Union Active Ballot ClubLabor union | United Food and Commercial Workers International Union | — | 1 | $2,500 |
| Culac the PAC of Credit Union National AssociationTrade association | Credit Union National Association | — | 1 | $2,500 |
| Air Line Pilots Association PACLabor union | Air Line Pilots Association | — | 2 | $2,500 |
| STV Group Inc. Political Action CommitteeCorporate | STV Group, Incorporated | — | 1 | $2,500 |
| Unitedhealth Group Incorporated PAC (United FOR Health)Corporate | UNHUnitedhealth Group Inc. | — | 1 | $2,500 |
| District No. 1-PCD, Marine Engineers' Beneficial Assoc. - Political Action Fund (Meba-Paf)Labor union | District NO.1-PCD, Meba (Marine Engineers' Beneficial Association) | — | 1 | $2,500 |
| Zeneca Inc. Political Action CommitteeCorporate | — | — | 1 | $2,500 |
| Nixon Peabody LLP PACIdeological / issue | — | — | 1 | $2,500 |
| Wakefern Food Corp. Political Action CommitteeCorporate | Wakefern Food Corp. | — | 1 | $2,500 |
| American Medical Association Political Action CommitteeMembership org | American Medical Association | — | 1 | $2,000 |
| American Institute of Certified Public Accountants Political Action CommitteeMembership org | American Institute of Certified Public Accountants | — | 2 | $2,000 |
| Federal Managers' Association Political Action CommitteeLabor union | — | — | 2 | $2,000 |
| Costello for Congress CommitteeCandidate committee | — | — | 1 | $2,000 |
| Comcast Corporation & Nbcuniversal Political Action Committee - FederalCorporate | CMCSAComcast Corp. | — | 2 | $2,000 |
| Nelson Mullins Riley & Scarborough, LLP Federal Political CommitteeIdeological / issue | — | — | 1 | $2,000 |
| Lockheed Martin Corporation Employees' Political Action CommitteeCorporate | LMTLockheed Martin Corp. | — | 2 | $2,000 |
| Cardinal Health Inc. PAC Aka Cardinal Health Companies PACCorporate | CAHCardinal Health Inc. | — | 1 | $2,000 |
| Together PAC Inc.Ideological / issue | — | — | 1 | $1,500 |
| Communications Workers of America-Cope Political Contributions CommitteeLabor union | Communications Workers of America | — | 1 | $1,000 |
| Independent Insurance Agents & Brokers of America, Inc. Political Action Committee (INSURPAC)Trade association | Independent Insurance Agents & Brokers of America, Inc. | — | 1 | $1,000 |
| Eli Lilly and Company Political Action CommitteeCorporate | LLYELI LILLY & Co | — | 1 | $1,000 |
| National Association of Postmasters of the United States (Napus PAC)Membership org | National Association of Postmasters of the United States | — | 1 | $1,000 |
| Northeast Utilities Employees' Political Action Committee-FederalCorporate | ESEversource Energy | — | 1 | $1,000 |
| Locke Lord LLP PACMembership org | — | — | 1 | $1,000 |
| The Boeing Company Political Action CommitteeCorporate | BABoeing Co | — | 1 | $1,000 |
| Arnold & Porter LLP Partners Political Action CommitteeMembership org | — | — | 1 | $1,000 |
| Human Rights Campaign PACMembership org | Human Rights Campaign | — | 1 | $1,000 |
| Mcdermott Will & Emery LLP PACIdeological / issue | — | — | 1 | $1,000 |
| Baird for CongressCandidate committee | — | — | 1 | $1,000 |
| Security Traders Association Political Action CommitteeTrade association | — | — | 1 | $1,000 |
| Nasdaq Omx Group, Inc. PAC (Nasdaq PAC)Corporate | NDAQNasdaq, Inc. | — | 1 | $1,000 |
| Ven-PACIdeological / issue | — | — | 1 | $1,000 |
| Massachusetts Biotechnology Council Federal Political Action CommitteeTrade association | — | — | 1 | $1,000 |
| Biogen Idec Political Action CommitteeCorporate | BIIBBiogen Inc. | — | 1 | $1,000 |
| Ameriprise Financial Inc. Political Action Committee (AMERIPRISEPAC)Corporate | AMPAmeriprise Financial Inc. | — | 1 | $1,000 |
| Spectra Energy Corp. Political Action Committee (Spectra-DCP PAC)Corporate | ENBEnbridge Inc. | — | 1 | $1,000 |
| LPL Financial LLC Political Action Committee (LPL PAC)Corporate | LPLALPL Financial Holdings Inc. | — | 1 | $1,000 |
| Netjets Association of Shared Aircraft Pilots PAC; Njasap PACLabor union | Netjets Association of Shared Aircraft Pilots (NJASAP) | — | 1 | $1,000 |
| Political Action Committee/the Bank of New York Mellon Corporation-Federal(bny Mellon-Fed)Corporate | — | — | 1 | $1,000 |
| Natixis Global Asset Management LP Political Action CommitteeCorporate | — | — | 1 | $1,000 |
| State Farm Mutual Automobile Insurance Company Federal Political Action CommitteeCorporate | — | — | 1 | $1,000 |
| Florida Sugar Cane League PACTrade association | Florida Sugar Cane League | — | 1 | $500 |
| Akin Gump Strauss Hauer & Feld LLP Civic Action Committee (AKA AGSH&F Civic Action CommittCorporate | — | — | 1 | $500 |
| Society of Independent Gasoline Marketers of America PACTrade association | Society of Independent Gasoline Marketers of America | — | 1 | $500 |
| Massachusetts Bankers PAC-Federal FundTrade association | — | — | 1 | $500 |
| Parsons Brinckerhoff Group Inc. PACCorporate | Parsons Brinckerhoff Group Inc. | — | 1 | $500 |
| Envelope Manufacturers Association Political Action CommitteeTrade association | Envelope Manufacturers Assoc of Amer | — | 1 | $500 |
| Political Action Committee of the International Alliance of Theatrical Stage EmployesLabor union | International Alliance of Theatrical Stage Employees | — | 1 | $500 |
| O'neill and Associates PACIdeological / issue | O'neill and Associates | — | 1 | $500 |
| Cummins Inc. Political Action Committee (CIPAC)Corporate | CMICummins Inc. | — | 1 | $500 |
| TD Bank N.a. Political Action CommitteeCorporate | TD Bank, N.a. | — | 1 | $500 |
| Massachusetts Blue PAC of Blue Cross Blue Shield of MassachusettsCorporate | — | — | 1 | $500 |
| Cumberland Farms Inc. Gulf Oil Limited Partnership PAC (Cumberland Gulf PAC)Corporate | CMBYCumberland Farms Ltd | — | 1 | $250 |
