| DEFENDERS OF WILDLIFE | WASHINGTON | DC | 1 | 2026-05-17 |
| DECENTRALIZATION RESEARCH CENTER | Washington | DC | 1 | 2026-05-17 |
| DEBORAH HOHLT | Washington | DC | 2 | 2026-05-17 |
| DCM GROUP LLC | Washington | DC | 4 | 2026-05-17 |
| DCI GROUP, L.L.C. | Washington | DC | 7 | 2026-05-17 |
| DC STRATEGIES GROUP, LLC | Washington | DC | 1 | 2026-05-17 |
| DC ADVOCACY, LLC | Washington | DC | 6 | 2026-05-17 |
| DB3, LLC (FKA THE DASCHLE GROUP) | Washington | DC | 7 | 2026-05-17 |
| DB USA CORPORATION | Washington | DC | 2 | 2026-05-17 |
| DAYBREAK STRATEGIES | Washington | DC | 2 | 2026-05-17 |
| DAVIS & HARMAN LLP | Washington | DC | 23 | 2026-05-17 |
| DAVIDOFF HUTCHER & CITRON, LLP | Washington | DC | 34 | 2026-05-17 |
| DAVID TURCH & ASSOC. | Washington | DC | 23 | 2026-05-17 |
| DAVID RUDD & ASSOCIATES LLC | Washington | DC | 5 | 2026-05-17 |
| DAVID GENCARELLI | Washington | DC | 1 | 2026-05-17 |
| DANEA KEHOE | WASHINGTON | DC | 2 | 2026-05-17 |
| DANCE/USA | Washington | DC | 1 | 2026-05-17 |
| DAN MCCARTHY CONSULTING LLC | Washington | DC | 1 | 2026-05-17 |
| DALY CONSULTING GROUP | WASHINGTON | DC | 18 | 2026-05-17 |
| DAHLBERG STRATEGIC | Washington | DC | 1 | 2026-05-17 |
| D INITIATIVES LLC | Washington | DC | 1 | 2026-05-17 |
| CUNEO GILBERT & LADUCA | Washington | DC | 3 | 2026-05-17 |
| CSX CORPORATION | Washington | DC | 1 | 2026-05-17 |
| CSPI ACTION FUND | Washington | DC | 1 | 2026-05-17 |
| CRUISE LINES INTERNATIONAL ASSOCIATION | Washington | DC | 1 | 2026-05-17 |
| CROWELL GLOBAL ADVISORS | WASHINGTON | DC | 7 | 2026-05-17 |
| CROWELL & MORING LLP | Washington | DC | 4 | 2026-05-17 |
| CROWE LLP | Washington | DC | 1 | 2026-05-17 |
| CROSSWINDS SOLUTIONS | Washington | DC | 7 | 2026-05-17 |
| CROSSROADS STRATEGIES, LLC | Washington | DC | 37 | 2026-05-17 |
| CREST HILL ADVISORS LLC | Washington | DC | 18 | 2026-05-17 |
| CREDIT UNION NATIONAL ASSOCIATION. INC. DBA AMERICA'S CREDIT UNIONS | WASHINGTON | DC | 1 | 2026-05-17 |
| CR FEDERAL | Washington | DC | 4 | 2026-05-17 |
| COZEN O'CONNOR PUBLIC STRATEGIES | Washington | DC | 21 | 2026-05-17 |
| COVINO SMITH & SIMON, INC. (FORMERLY SIMON AND COMPANY, INC.) | Washington | DC | 1 | 2026-05-17 |
| COVINGTON & BURLING LLP | Washington | DC | 22 | 2026-05-17 |
| COUNCIL ON STATE TAXATION | WASHINGTON | DC | 1 | 2026-05-17 |
| COUNCIL ON FOUNDATIONS | Washington | DC | 1 | 2026-05-17 |
| COUNCIL OF INSTITUTIONAL INVESTORS | Washington D.C | DC | 2 | 2026-05-17 |
| COUNCIL FOR CITIZENS AGAINST GOVERNMENT WASTE | WASHINGTON | DC | 1 | 2026-05-17 |
| CORNERSTONE GOVERNMENT AFFAIRS, INC. | Washington | DC | 484 | 2026-05-17 |
| CORCORAN STRATEGIES GROUP | Washington | DC | 3 | 2026-05-17 |
| CORBIN STRATEGIES LLC | Washington | DC | 3 | 2026-05-17 |
| COPYRIGHT ALLIANCE | Washington | DC | 1 | 2026-05-17 |
| CONWAY CAPITOL CONSULTING LLC | Washington | DC | 2 | 2026-05-17 |
| CONTROL AI US, INC. | Washington DC | DC | 1 | 2026-05-17 |
| CONTINENTAL STRATEGY, LLC | Washington | DC | 148 | 2026-05-17 |
| CONSUMER HEALTHCARE PRODUCTS ASSOCIATION | WASHINGTON | DC | 1 | 2026-05-17 |
| CONSUMER BANKERS ASSOCIATION | WASHINGTON | DC | 1 | 2026-05-17 |
| CONGRESS OF NEUROLOGICAL SURGEONS | Washingon | DC | 1 | 2026-05-17 |
| CONFRERE STRATEGIES, LLC | Washington | DC | 2 | 2026-05-17 |
| COMPUTER & COMMUNICATIONS INDUSTRY ASSOCIATION | Washington | DC | 1 | 2026-05-17 |
| COMPETITIVE CARRIERS ASSOCIATION | Washington | DC | 1 | 2026-05-17 |
| COMPASS CONSULTING GROUP, LLC | WASHINGTON | DC | 2 | 2026-05-17 |
| COMMUNITY ONCOLOGY ALLIANCE | Washington | DC | 1 | 2026-05-17 |
| COMMON CAUSE | WASHINGTON | DC | 1 | 2026-05-17 |
| COMMODITY MARKETS COUNCIL | WASHINGTON | DC | 2 | 2026-05-17 |
| COMMITTEE ON INVESTMENT OF EMPLOYEE BENEFIT ASSETS INC. | Washington | DC | 2 | 2026-05-17 |
| COMMERCIAL VEHICLE SAFETY ALLIANCE | Washington | DC | 2 | 2026-05-17 |
| COLUMBIA STRATEGIC COUNSEL | Washington | DC | 3 | 2026-05-17 |
| COLLECTIVE STRATEGIES & COMMUNICATIONS | Washington | DC | 22 | 2026-05-17 |
| COIN CENTER INC. | Washington | DC | 2 | 2026-05-17 |
| COGENT STRATEGIES LLC | Washington | DC | 2 | 2026-05-17 |
| COALITION OF AIRLINE PILOTS ASSOCIATIONS | Washington | DC | 1 | 2026-05-17 |
| COALITION FOR DEEP SPACE EXPLORATION | Washington | DC | 1 | 2026-05-17 |
| COALITION FOR AMERICA'S GATEWAYS & TRADE CORRIDORS | WASHINGTON | DC | 2 | 2026-05-17 |
| CO2EFFICIENT LLC | Washington | DC | 1 | 2026-05-17 |
| CME GROUP, INC. | WASHINGTON | DC | 1 | 2026-05-17 |
| CLEAN FUELS ALLIANCE AMERICA F/K/A NATIONAL BIODIESEL BOARD | WASHINGTON | DC | 1 | 2026-05-17 |
| CLAUSE LAW P.L.L.C. | Washington | DC | 11 | 2026-05-17 |
| CLARK HILL, PLC | Washington | DC | 1 | 2026-05-17 |
| CLARK HILL PUBLIC STRATEGIES LLC | Washington | DC | 23 | 2026-05-17 |
| CHRIS KATOPIS | Washington | DC | 2 | 2026-05-17 |
| CHM LLC DBA ATLAS COMMUNITY STUDIOS | Washington | DC | 8 | 2026-05-17 |
| CHIME FINANCIAL, INC. | Washington | DC | 1 | 2026-05-17 |
| CHENIERE ENERGY, INC. | Washington | DC | 1 | 2026-05-17 |
| CHARTWELL STRATEGY GROUP LLC | Washington | DC | 20 | 2026-05-17 |
| CHAMBER OF SHIPPING OF AMERICA | WASHINGTON | DC | 2 | 2026-05-17 |
| CGCN GROUP, LLC | Washington | DC | 44 | 2026-05-17 |
| CFM STRATEGIC COMMUNICATIONS (CONKLING FISKUM & MCCORMICK) | WASHINGTON | DC | 10 | 2026-05-17 |
| CERTIFIED FINANCIAL PLANNER BOARD OF STANDARDS, INC. | Washington | DC | 3 | 2026-05-17 |
| CENTER ON BUDGET AND POLICY PRIORITIES | WASHINGTON | DC | 1 | 2026-05-17 |
| CENTER MARKET STRATEGIES, LLC | Washington | DC | 2 | 2026-05-17 |
| CENTER FOR SCIENCE IN THE PUBLIC INTEREST | Washington | DC | 1 | 2026-05-17 |
| CENTER FOR LYME ACTION | WASHINGTON | DC | 1 | 2026-05-17 |
| CENTER FOR LAW AND SOCIAL POLICY (CLASP) | Washington | DC | 1 | 2026-05-17 |
| CENTER FOR COMMUNITY CHANGE ACTION | Washington | DC | 1 | 2026-05-17 |
| CENTER FOR AMERICAN PROGRESS ACTION FUND | WASHINGTON | DC | 1 | 2026-05-17 |
| CAVAROCCHI RUSCIO DENNIS ASSOCIATES, L.L.C. | Washington | DC | 23 | 2026-05-17 |
| CATALYST GLOBAL STRATEGIES, LLC | Washington | DC | 5 | 2026-05-17 |
| CASTELION | Washington | DC | 1 | 2026-05-17 |
| CASSIDY & ASSOCIATES, INC. | Washington | DC | 169 | 2026-05-17 |
| CARPI & CLAY, INC | WASHINGTON | DC | 16 | 2026-05-17 |
| CAROL G HOLLADAY & ASSOCIATES | Washington | DC | 1 | 2026-05-17 |
| CARMEN GROUP INCORPORATED | Washington | DC | 4 | 2026-05-17 |
| CARGO AIRLINE ASSOCIATION | Washington | DC | 1 | 2026-05-17 |
| CAREFIRST BLUECROSS BLUESHIELD | Washington | DC | 2 | 2026-05-17 |
| CARE ACTION NOW, INC. | Washington | DC | 1 | 2026-05-17 |
| CARDINAL INFRASTRUCTURE LLC | Washington | DC | 1 | 2026-05-17 |
| CARD & ASSOCIATES, LLC | Washington | DC | 6 | 2026-05-17 |