HP has membership in the following U.S. federal or national associations.
| American League of Lobbyists |
| American Legislative Exchange Council (ALEC) |
| Australian American Leadership Dialogue |
| British American Business Association |
| Business Government Relations Council |
| Business Institute for Political Analysis (BIPAC) |
| Business Software Alliance |
| California State Society |
| Canadian American Business Council |
| Center for American Progress |
| Center for Information Policy Leadership |
| Center for Strategic & International Studies |
| Coalition of Service Industries |
| Computer Coalition for Responsible Exports (CCRE) |
| Congressional Black Caucus Foundation |
| Congressional Hispanic Caucuc Institute |
| Congressional Institue |
| Congressional Management Foundation |
| Congressinal Study Group on Germany |
| TCC - Tech CEO Coalition |
| Council of State Governments/West |
| Council of State Governments/East |
| Council of Western A.G.s (CWAG) |
| DDC - HP PAC web & reporting services |
| Democratic Attorney Generals Assoc. (DAGA) |
| Democratic Legislative Campaign Committee |
| Democratic Governors Association (DGA) |
| Digital Dialogue Forum |
| ITIC - Environmental Committee |
| Emergency Committee for American Trade (ECAT) |
| The ERISA Industry Committee |
| European American Business Council |
| Healthcare Information & Management Systems Society |
| Information Technology Assn of America (ITAA) |
| Information Technology Industry Council (ITI) |
| Internet Education Foundation |
| ITI Environmental Leadership Committee |
| National Assoc. of Manufacturers |
| National Foreign Trade Council |
| National Center Asia Pacific Economic Cooperation |
| National Governors' Association (NGA) |
| New Democrat Network (NDN) |
| Online Privacy Alliance |
| Professional Services Council |
| Progressive Policy Institute/DLC |
| Public Affairs Council (PAC) |
| R&D Credit Coalition |
| Republican Attorney Generals Assoc (RAGA) |
| Republican Governors Association (RGA) |
| Republican Legislative Campaign Committee |
| Republican Main Street Partnership |
| Franklin (fromerlyRipon Society Ed. Fund) |
| Senate Presidents |
| State Government Affairs Council (SGAC) |
| State Legislative Leaders Assoc. |
| State Privacy and Security Council |
| Tax Council Policy Institute |
| Tax Foundation |
| Technology Network (TechNet) |
| Third Way |
| US Brazil Business Council |
| US China Business Council |
| US New Zealand Business Council |
| US Info Tech Office (USITO) in China |
| US Capitol Historical Society |
| US Conference of Mayors |
| US India Business Council/US Chamber |
| Western Governors Association (WGA) |
| World Affairs Council of Northern California |