- United Community Bankers PAC (Bancfirst Corp)
- United Democracy Project
- United Democrats San Gabriel Valley
- United Egg Association Eggpac
- United Food and Commercial Workers International Union Active Ballot Club
- United Food and Commercial Workers International Union Local 400 PAC
- United Food and Commercial Workers Local 1776ks PAC
- United for Common Sense
- United for Democracy
- United Fresh Produce Association Fresh Political Action Committee (Fresh PAC)
- United Health Services PAC, Inc.
- United Launch Alliance
- United Mine Workers of America - Coal Miners Political Action Committee
- United Parcel Service Inc. PAC
- United Pilots PAC/United Airlines Master Executive Council
- United Postmasters and Managers of America Political Fund (Upma PAC)
- United Services Automobile Association Employee PAC - Usaa Employee PAC
- United States Air Force
- United States Cellular Corporation Political Action Committee
- United States Marine Corps
- United States national wheelchair basketball team (Team USA / U.S. Paralympics)
- United States Peanut Political Action Committee (Us Peanut PAC)
- United States Steel Corporation Political Action Committee
- United States Sugar Corporation Employee Stock Ownership Plan Political Action Committee,
- United States Telecom Association Political Action Committee (Telecompac)
- United Steelworkers Political Action Fund
- United Together
- United Veterans Alliance of America PAC
- United We Can
- United We Dream Action
- United We Succeed
- United Wholesale Mortgage PAC (Uwm PAC)
- Unitedhealth Group Incorporated PAC (Unitedhealth Group PAC)
- UnitedTech Governance Coalition for National Politics and Legislation
- Unity First PAC
- Universal Music Group Employee Action Fund
- University College London
- University of Arizona
- University of Austin
- University of California
- University of California Irvine
- University of California, Berkeley
- University of California, San Francisco
- University of Chicago
- University of Illinois
- University of Iowa College of Law
- University of Iowa Health Care
- University of Maryland
- University of Michigan
- University of Minnesota
- University of New Hampshire
- University of North Carolina
- University of North Carolina at Chapel Hill
- University of North Carolina School of Medicine
- University of Oxford
- University of Pennsylvania
- University of Richmond School of Law
- University of Toronto
- University of Virginia
- University of Washington
- University of Wisconsin
- University of Wisconsin Madison
- Univision Communications
- Univision Communications Inc. Political Action Committee
- Unrigged PAC
- Uns Energy Corporation PAC (Uns Energy PAC)
- Unum Group Political Action Committee (Unumpac)
- UPMC
- Upper Hand Fund
- Upset the Setup
- Upshur County Republican Executive Committee
- Urban Institute
- Us Energy PAC (The PAC of American Exploration & Production Council, Inc.)
- Us Oncology Inc. Network Political Action Committee
- Us Radiology Specialists PAC
- Us Venture Inc Us PAC
- USA Farmworker PAC
- USA Rice Federation PAC
- Usacs PAC
- USAID
- USC School of Cinematic Arts
- Utah State Democratic Committee
- Utahns for Liberty
- Utility Workers Union of America Cope
- Uw Health
- Uw Madison
- Val Demings for U.s. Senate
- Val Hoyle for Congress
- Valar Ventures
- VALERO
- Valero Energy Corporation Political Action Committee
- Valley-Westside United PAC
- Valor PAC
- Value in Electing Women Political Action Committee
- Valuetainment
- Van Hollen for Senate
- Van Orden for Congress
- Van Scoyoc Associates
- Vance Victory
- Varda Space Industries
- Vargas for Congress
- Varian Medical Systems, Inc. PAC ('Varian PAC')
- Velvet Hammer PAC
- VEN-PAC
- Venable LLP
- Venmo
- Venrock
- Verisk Analytics
- Verizon
- Verizon Communications, Inc. Political Action Committee (Verizon PAC)
- Vermont Democratic Party
- Vern Buchanan for Congress
- Versant
- Veterans Aid PAC
- Veterans Duty Fund
- Veterans For Responsible Leadership
- Veterans for Truth PAC
- Veterans Guardian
- Veterans United Home Loans
- Viacomcbs Inc. Political Action Committee
- Viatris Inc. Political Action Committee (Viapac)
- Vice Media
- Vicente Gonzalez for Congress
- Victoria Spartz for Congress
- Victory and Freedom PAC (Vaf PAC)
- Victory by Investing Building and Empowering (Vibe) PAC
- Victory East
- Victory in November Election PAC
- Victory Now PAC
- Victory PAC
- Vigor PAC
- Vikram for Nh
- Village of Briarcliff Manor
- Village of Tarrytown
- Vindman for Congress
- Virgin Galactic
- Virgin Mobile USA
- Virginia Bankers Association
- Virginia Dare Soil and Water Conservation District
- Virginia Democratic Action PAC
- Virginia Foxx for Congress
- Virginia Now
- Virginia Poverty Law Center
- Virginia Progress
- Virginians for Freedom
- Virtu Financial Inc.
- Visa, Inc. Political Action Committee
- Visalia Unified School District
- Vision for America
- Vista Equity Partners
- Vista Outdoor Inc. Political Action Committee (A/K/A Vista Outdoor PAC)
- Vistra Employee Political Action Committee of Vistra Corp.
- Vitoria PAC
- Vivek 2024
- Vivendi
- Vizient, Inc., Political Action Committee
- Vmware, Inc. Political Action Committee (Vmware PAC)
- Voces De La Frontera Action
- Vogel for Congress
- Vogue
- Voice PAC
- Von Holtzbrinck family
- Vostu
- Votar Es Poder PAC
- Vote Alaska Before Party
- Vote Baumgartner for Congress
- Vote Donna Us Congress
- Vote for Equality
- Vote Mama
- Vote Save America
- Vote to Elect Republicans Now PAC
- Vote Tripling PAC
- Voter Protection Project
- Voters for Responsive Government
- Voters of These 50 States of America
- Votesane PAC
- VoteVets
- VoteVets.org Action Fund
- Vox
- Vox Media
- Vsp Holding Company Inc Political Action Committee (Vsp - PAC)
- Vulcan Materials Company Political Action Committee
- W Va State Democratic Ex Com
- Wachtell, Lipton, Rosen & Katz
- Wagner Mchenry Victory
- Wait But Why
- Wakefern Food Corp. Political Action Committee
- Walden for Congress
- Walgreen Co PAC (Walgreenspac)
- Walker 4 Nc
- Walkinshaw for Congress
- Walmart
- Walmart Inc. PAC for Responsible Government
- Wanako Games
- Warby Parker
- Warner Bros. Discovery
- Warner Norcross + Judd Federal PAC
- Warnock for Georgia
- Warnock Victory Fund
- Warren Buffet Apple Inc.
- Warren for President, Inc.
- Warren Wilson College
- Washington Rising Inc.
- Washington State Democratic Central Committee
- Washington State Senate
- Washington Women for Choice
- Washtenaw County Democratic - Federal Account
- Waste Management Employees Better Government Fund
- Watco Companies LLC
- Waterpac - National Rural Water Association Political Committee
- Waukeag Neck Oyster Co.
- Way Back PAC
- Way to Lead PAC
- Wayne County Prosecutor's Office
- Wayne Farms LLC Political Action Committee Wayne Farms PAC
- Waywire
- WCAS
- We Decide
- Webb County, Texas
- Weill Cornell Medicine
- WELCOMEPAC
- Wellhub
- Wells Fargo & Co
- Wells Fargo and Company Employee PAC (Aka Wells Fargo Employee PAC)
- Wells Fargo and Company Employees Good Government Federal Fund Ii
- Wells PAC
- Wellspring Committee
- Wellstone Action
- Wendy Davis for Congress
- Werba Rubin Papier Wealth Management
- Werner Enterprises Inc Political Action Committee
- Wescom Credit Union Federal PAC
- West Cancer Center
- West Michigan for Change
- Westerman for Congress
- Westerman Victory Fund
- Western Alliance Bancorporation Political Action Committee (Wabpac)
- Western Alliance of Farmworker Advocates PAC (Wafa PAC)
- Western and Southern Life Insurance Co Political Action Committee (Western-Southern PAC)
- Western Blue PAC
- Western Energy Alliance PAC
- Western Extrusions
- Western Growers Political Action Committee
- Western National Group
- Western Native Voice Votes
- Western Peanut Growers Association, Inc. Political Action Committee
- Western Sugar Cooperative PAC
- WestExec Advisors
- Westfield Federal Employee Political Action Committee of Ohio Farmers Insurance Company
- Westminster City Council
- Westminster City Council (California)
- Westmoreland for Congress
- Westrock Political Action Committee
- Westwood One
- Wexford Capital
- Wexton for Congress
- Weyerhaeuser Company Political Action Committee
- Wfw Action Fund Inc
- WGAL-TV
- Wharton School
- Whatley for Senate
- Wheel Dog PAC
- When Democrats Turn Out PAC
- Whirlpool Corporation Political Action Committee
- Whitehouse for Senate
- Whitesides Victory Fund
- Whitney Fox for Congress
- Whitney Museum of American Art
- Who Dat PAC
- Wholesale & Specialty Insurance Association (Wsia) PAC
- Wicker for Senate
- Wild and Wonderful PAC
- Wiley Nickel for Congress
- Will Rollins for Congress
- Willapa Wild
- Williams for Montana
- Williams Hart & Boundas Law Firm
- WilmerHale
- Wilson Sonsini Goodrich & Rosati
- Win It Back PAC
- Win the Era PAC
- Win the Senate 2020
- Windstream Holdings LLC Political Action Committee
- Windward Fund
- Wine and Spirits Wholesalers of America, Inc. Political Action Committee
- Wine Institute PAC
- Winged Keel Group
- Winklevoss Capital Management
- Winning for America PAC
- Winning for Women, Inc. PAC
- Winning Right PAC
- WinRed
- WinSenate
- Winston & Strawn LLP
- Wired
- Wisconsin Economic Development Corporation
- Wisconsin Medical Society Political Action Committee
- Wisconsin Truth PAC
- With Honor Fund Ii, Inc.