| INDIANA CHAMBER OF COMMERCE, INC. | Indianapolis | IN | 1 | 2026-05-17 |
| INDEPENDENT PHARMACY COOPERATIVE | Sun Prairie | WI | 1 | 2026-05-17 |
| INDEPENDENT INSURANCE AGENTS & BROKERS OF AMERICA | Washington | DC | 1 | 2026-05-17 |
| INDEPENDENT DISTRIBUTORS ASSOCIATION | corinth | TX | 1 | 2026-05-17 |
| INDEPENDENT COMMUNITY BANKERS OF AMERICA | WASHINGTON | DC | 1 | 2026-05-17 |
| INDEPENDENT BANKERS ASSOCIATION OF TEXAS | AUSTIN | TX | 3 | 2026-05-17 |
| INDEPENDENCE BLUE CROSS, LLC | Philadelphia | PA | 1 | 2026-05-17 |
| INCLUSIVE ABUNDANCE ACTION | Greenwich | CT | 1 | 2026-05-17 |
| IMPRESSION STRATEGY, LLC | Vienna | VA | 1 | 2026-05-17 |
| IMPOSSIBLE FOODS INC. | Redwood City | CA | 1 | 2026-05-17 |
| IMPERIUM GLOBAL ADVISORS | Potomac | MD | 1 | 2026-05-17 |
| IMPACT MANAGEMENT GROUP | Little Rock | AR | 3 | 2026-05-17 |
| IMPACT HEALTH POLICY PARTNERS | Greenwood Village | CO | 5 | 2026-05-17 |
| IMMIGRATION EQUALITY | Brooklyn | NY | 1 | 2026-05-17 |
| IMEC.IC-LINK USA, INC. | San Jose | CA | 1 | 2026-05-17 |
| IMEC INC. | San Francisco | CA | 1 | 2026-05-17 |
| ILLINOIS HEALTH & HOSPITAL ASSOCIATION (FORMERLY ILLINOIS HOSPITAL ASSOCIATION) | Naperville | IL | 1 | 2026-05-17 |
| ILLINOIS ASSOCIATION OF SCHOOL BOARDS | Springfield | IL | 1 | 2026-05-17 |
| ILLINOIS AGRICULTURAL ASSOCIATION | Bloomington | IL | 1 | 2026-05-17 |
| IKON PUBLIC AFFAIRS | Philadelphia | PA | 4 | 2026-05-17 |
| IEX GROUP | New York | NY | 1 | 2026-05-17 |
| IDEMIA IDENTITY & SECURITY USA, LLC | Reston | VA | 1 | 2026-05-17 |
| IDACORP, INC | BOISE | ID | 1 | 2026-05-17 |
| ID.ME, LLC | McLean | VA | 1 | 2026-05-17 |
| ICEBREAKER STRATEGIES, LLC | Alexandria | VA | 57 | 2026-05-17 |
| ICE MILLER STRATEGIES LLC | Washington | DC | 1 | 2026-05-17 |
| ICE MILLER LLP | Indianapolis | IN | 11 | 2026-05-17 |
| IAC INC. (FORMERLY IAC/INTERACTIVECORP) | New York | NY | 1 | 2026-05-17 |
| I STREET ADVOCATES | Washington | DC | 19 | 2026-05-17 |
| I AM ALS | Washington | DC | 1 | 2026-05-17 |
| HWG LLP (F/K/A HARRIS, WILTSHIRE & GRANNIS LLP) | Washington | DC | 3 | 2026-05-17 |
| HUTTON STRATEGIES | Bethesda | MD | 3 | 2026-05-17 |
| HURT NORTON LLC | Washington | DC | 1 | 2026-05-17 |
| HUNTON ANDREWS KURTH LLP | Washington | DC | 3 | 2026-05-17 |
| HUMAN RIGHTS CAMPAIGN | WASHINGTON | DC | 1 | 2026-05-17 |
| HUMAN COALITION ACTION | Plano | TX | 1 | 2026-05-17 |
| HSBC TECHNOLOGY AND SERVICES USA INC. | WASHINGTON | DC | 1 | 2026-05-17 |
| HSA STRATEGIES | Bethesda | MD | 4 | 2026-05-17 |
| HR STRATEGIES LLC | Washington | DC | 2 | 2026-05-17 |
| HP INC. | WASHINGTON | DC | 1 | 2026-05-17 |
| HOWE STREET GROUP LLC | Leawood | KS | 1 | 2026-05-17 |
| HOUSING POLICY COUNCIL | Washington | DC | 1 | 2026-05-17 |
| HOUSEHOLD & COMMERCIAL PRODUCTS ASSOCIATION | WASHINGTON | DC | 1 | 2026-05-17 |
| HOSPICE COMPASSUS | Brentwood | NC | 1 | 2026-05-17 |
| HORMEL FOODS CORPORATION | Austin | MN | 1 | 2026-05-17 |
| HORIZONS GLOBAL SOLUTIONS LLC | Huntsville | AL | 24 | 2026-05-17 |
| HORIZON GOVERNMENT AFFAIRS | Washington | DC | 7 | 2026-05-17 |
| HOOPER, LUNDY & BOOKMAN, P.C. | Washington | DC | 1 | 2026-05-17 |
| HONIGMAN LLP | Detroit | MI | 2 | 2026-05-17 |
| HOLOGIC, INC. | Marlborough | MA | 1 | 2026-05-17 |
| HOLLINGER GROUP CONSULTING | fort belvoir | VA | 15 | 2026-05-17 |
| HOLLIER & ASSOCIATES | Washington | DC | 1 | 2026-05-17 |
| HOLLIDAY COLLABORATIVE AGENCY LLC | Indianapolis | IN | 2 | 2026-05-17 |
| HOLLAND & KNIGHT LLP | Washington | DC | 450 | 2026-05-17 |
| HOLLAND & HART LLP | Washington | DC | 17 | 2026-05-17 |
| HOGAN POLICY ADVISORS | Arlington | VA | 3 | 2026-05-17 |
| HOGAN LOVELLS US LLP | WASHINGTON | DC | 95 | 2026-05-17 |
| HNTB CORPORATION | Sausalito | CA | 1 | 2026-05-17 |
| HNI CORPORATION | Muscatine | IA | 2 | 2026-05-17 |
| HJ TOBIN POLICY CONSULTING | Watertown | MA | 1 | 2026-05-17 |
| HIV AND HEPATITIS POLICY INSTITUTE | Washington | DC | 1 | 2026-05-17 |
| HITTLE STRATEGIES, LLC | Alexandria | VA | 2 | 2026-05-17 |
| HITHER CREEK STRATEGIES, LLC | Alexandria | VA | 1 | 2026-05-17 |
| HITACHI, LTD | WASHINGTON | DC | 1 | 2026-05-17 |
| HIMS & HERS HEALTH, INC. | Sausalito | CA | 1 | 2026-05-17 |
| HILLTOP ADVOCACY | Rancho Mission Viejo | CA | 3 | 2026-05-17 |
| HILLNORTH LLC | Washington | DC | 21 | 2026-05-17 |
| HILLCO PARTNERS | Austin | TX | 1 | 2026-05-17 |
| HILL, GOSDECK & MCGRAW, LLC | Albany | NY | 1 | 2026-05-17 |
| HILL EAST GROUP, LLC | Washington | DC | 4 | 2026-05-17 |
| HILL CAPITOL STRATEGIES | Maple Grove | MN | 1 | 2026-05-17 |
| HIGHLAND ELECTRIC FLEETS, INC. | Beverly | MA | 1 | 2026-05-17 |
| HIGH STREET STRATEGIES LLC | Washington | DC | 2 | 2026-05-17 |
| HF SINCLAIR CORPORATION | Dallas | TX | 1 | 2026-05-17 |
| HF MANAGEMENT SERVICES, LLC FKA HEALTHFIRST | New York | NY | 1 | 2026-05-17 |
| HETTINGER STRATEGY GROUP LLC | Potomac Falls | VA | 6 | 2026-05-17 |
| HERMEUS CORP. | Atlanta | GA | 1 | 2026-05-17 |
| HEMOPHILIA FEDERATION OF AMERICA | WASHINGTON | DC | 1 | 2026-05-17 |
| HEARTH, PATIO & BARBECUE ASSOCIATION | Arlington | VA | 1 | 2026-05-17 |
| HEALTHCARE LEADERSHIP COUNCIL | WASHINGTON | DC | 1 | 2026-05-17 |
| HEALTHCARE INSTITUTE OF NEW JERSEY | Trenton | NJ | 1 | 2026-05-17 |
| HEALTHCARE FINANCIAL MANAGEMENT ASSOCIATION | Washington | DC | 2 | 2026-05-17 |
| HEALTHCARE DISTRIBUTION ALLIANCE(HDA)(FORMERLY HEALTHCARE DISTRIBUTION MANAGEMENT ASSOCIATION (HDMA) | Washington, DC | DC | 1 | 2026-05-17 |
| HEALTH TRANSFORMATION ALLIANCE | Westmont | NJ | 1 | 2026-05-17 |
| HEALTH POLICY SOURCE, INC. | Alexandria | VA | 22 | 2026-05-17 |
| HEALTH INDUSTRY DISTRIBUTORS ASSOCIATION | Alexandria | VA | 1 | 2026-05-17 |
| HEALTH AND MEDICINE COUNSEL, LLC | Washington | DC | 9 | 2026-05-17 |
| HDR, INC | Pensacola | FL | 1 | 2026-05-17 |
| HB STRATEGIES | Washington | DC | 53 | 2026-05-17 |
| HAWLEY LLC | Blacksburg | VA | 8 | 2026-05-17 |
| HAVOCAI | Rumford | RI | 1 | 2026-05-17 |
| HARVEY RUN STRATEGIES LLC | Chadds Ford | PA | 3 | 2026-05-17 |
| HARTWELL CAPITOL CONSULTING | Lake Ridge | VA | 10 | 2026-05-17 |
| HARTFORD INSURANCE GROUP (FKA HARTFORD FINANCIAL SERVICES GROUP) | Hartford | CT | 1 | 2026-05-17 |
| HART HEALTH STRATEGIES | Washington | DC | 1 | 2026-05-17 |
| HARPER & BAILEY GOVERNMENTAL SOLUTIONS LLC | Jackson | MS | 14 | 2026-05-17 |
| HARO SOLUTIONS LLC | Arlington | VA | 17 | 2026-05-17 |
| HARNED STRATEGIES LLC | Arlington | VA | 2 | 2026-05-17 |
| HARMONY BIOSCIENCES | plymouth meeting | PA | 1 | 2026-05-17 |
| HARGAN STRATEGIES, FORMERLY REPORTED AS HARGAN AND ASSOCIATES | Bradenton | FL | 3 | 2026-05-17 |