The following senators have offices in the Hart building in Washington, D.C.
Tammy Baldwin (D-Wisconsin) Room 717
Max Baucus (D-Montana) Room 511
Richard Blumenthal (D-Connecticut) Room 702
John Boozman (R-Arkansas) Room 320
Barbara Boxer (D-California) Room 112
Sherrod Brown (D-Ohio) Room 713
Maria Cantwell (D-Washington) Room 311
Ben Cardin (D-Maryland) Room 509
Thomas Carper (D-Delaware) Room 513
John Cornyn (R-Texas) Room 517
Richard Durbin (D-Illinois) Room 711
Dianne Feinstein (D-California) Room 331
Debra Fischer (R-Nebraska) Room 825B
Al Franken (D-Minnesota) Room 309
Chuck Grassley (R-Iowa) Room 135
Tom Harkin (D-Iowa) Room 731
Orrin Hatch (R-Utah) Room 104
Tim Johnson (D-South Dakota) Room 136
Mark Kirk (R-Illinois) Room 524
Amy Klobuchar (D-Minnesota) Room 302
Mary Landrieu (D-Louisiana) Room 703
Mike Lee (R-Utah) Room 316
Joe Manchin (D-West Virginia) Room 303
Claire McCaskill (D-Missouri) Room 506
Robert Menendez (D-New Jersey) Room 528
Jeff Merkley (D-Oregon) Room 313
Barbara Mikulski (D-Maryland) Room 503
Lisa Murkowski (R-Alaska) Room 709
Bill Nelson (D-Florida) Room 716
Jack Reed (D-Rhode Island) Room 728
Harry Reid (D-Nevada) Room 522
Pat Roberts (R-Kansas) Room 109
John Rockefeller (D-West Virginia) Room 531
Brian Schatz (D-Hawaii) Room 722
Charles Schumer (D-New York) Room 322
Jeanne Shaheen (D-New Hampshire) Room 520
Debbie Stabenow (D-Michigan) Room 133
Jon Tester (D-Montana) Room 724
Pat Toomey (R-Pennsylvania) Room 502
Mark Udall (D-Colorado) Room 730
Tom Udall (D-New Mexico) Room 110
David Vitter (R-Louisiana) Room 516
Elizabeth Warren (D-Massachusetts) Room 317
Sheldon Whitehouse (D-Rhode Island) Room 530
Source: www.senate.gov