Early filings of political action committee reports for May activity are showing solid strength in their contributions to members of Congress.

ActBlue

, a Democratic PAC specializing in earmarked contributions for specific candidates, remains the largest PAC. It reported receipts of $5,554,109 during May. So far in 2013, the PAC has raised $26,676,998. It is collecting at a rate on par with the Democratic National Committee and the National Republican Congressional Committee, and ahead of the senatorial committees or each party.

The PAC gave out $5,168,868 in contributions to federal candidates and committees.

The PAC gave $1,550,629 to the DCCC; $367,439 to the DSCC; $268,385 to Markey Senate Victory; $130,188 to The Markey Commitete; $230,764 to Elizabeth Colbert Busch for Congress; $191,000 to House Senate Victory Fund; $187,083 to Off the Sidelines PAC; and $181,448 to Friends of Mark Warner; among others.

Major donors included William Derrough (investment banker, Moelis, N.Y.) $32,400; Dennis Mehiel (president, Four M Company, N.Y.) $32,400; Andrew Heiberger (CEO, Town Real Estate, N.Y.) $30,000; Alex Rigopulos (CEO, Harmonix, Mass.) $25,200; Arnold Hiatt (president, The A.M. Fund, Mass.) $22,600; Henry Jarecki (chairman, the Falconwood Corporation, N.Y.) $20,000; among others.

As we posted earlier, the 

 earlier, the American Crystal Sugar Company PAC 

American Crystal Sugar Company PAC

 reported giving out $247,500 in May to 67 members of Congress.

Other early filers showing strength include: The AT&T Inc. Federal PAC gave out $192,000.The 

AT&T Inc. Federal PAC

 gave out $192,000.The American Bankers Association PAC (BankPAC) gave out $170,000. The 

American Bankers Association PAC (BankPAC)

 gave out $170,000. The National Multi Housing Council PAC gave out $165,000. The 

National Multi Housing Council PAC

 gave out $165,000. The General Electric Company PAC gave out $152,000. The 

General Electric Company PAC

 gave out $152,000. The Action Committee for Rural Electrification (ACRE) gave out $151,907. 

Action Committee for Rural Electrification (ACRE)

 gave out $151,907. AFLAC PAC gave out $149,000. The 

AFLAC PAC

 gave out $149,000. The United Parcel Service Inc. PAC gave out $133,510. The 

United Parcel Service Inc. PAC

 gave out $133,510. The Lockheed Martin Corporation Employee’s PAC gave out $132,500 to federal candidates and committees. View the details of any PAC by going to their 

Lockheed Martin Corporation Employee’s PAC

 gave out $132,500 to federal candidates and committees. View the details of any PAC by going to their PAC profile and clicking on “Electronic Filings.”

Monthly reports covering May activity are due tomorrow, June 20.