Client List
GET /api/v1/clients/?format=api&ordering=name&page=79
https://lda.senate.gov/api/v1/clients/?format=api&ordering=name&page=80", "previous": "https://lda.senate.gov/api/v1/clients/?format=api&ordering=name&page=78", "results": [ { "id": 160396, "url": "https://lda.senate.gov/api/v1/clients/160396/?format=api", "client_id": 137, "name": "ADVANCED PAYMENT SYSTEM LLC", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "TX", "state_display": "Texas", "country": "US", "country_display": "United States of America", "ppb_state": "TX", "ppb_state_display": "Texas", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2007-07-31", "registrant": { "id": 57817, "url": "https://lda.senate.gov/api/v1/registrants/57817/?format=api", "house_registrant_id": 35254, "name": "HACKNEY GOVERNMENT AFFAIRS GROUP (FORMERLY CLINT HACKNEY & COMPANY)", "description": "Funding for research and development projects.", "address_1": "601 Pennsylvania Avenue NW", "address_2": "South Bldg. Suite 900", "address_3": null, "address_4": null, "city": "Washington", "state": "DC", "state_display": "District of Columbia", "zip": "20004", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "CLINT HACKNEY", "contact_telephone": "+1 512-751-3636", "dt_updated": "2023-05-30T12:25:12.557715-04:00" } }, { "id": 192854, "url": "https://lda.senate.gov/api/v1/clients/192854/?format=api", "client_id": 24, "name": "ADVANCED PHOTONIC CRYSTALS", "general_description": "Crystal growing for laser applications", "client_government_entity": false, "client_self_select": false, "state": "SC", "state_display": "South Carolina", "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2010-05-04", "registrant": { "id": 400559674, "url": "https://lda.senate.gov/api/v1/registrants/400559674/?format=api", "house_registrant_id": 400559674, "name": "NORTH 17 CONSULTING", "description": "Assist small technology companies in engaging with the Federal government", "address_1": "6268 Rudder Lane", "address_2": null, "address_3": null, "address_4": null, "city": "Awendaw", "state": "SC", "state_display": "South Carolina", "zip": "29429", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "RICK RENTZ", "contact_telephone": "+1 843-991-2324", "dt_updated": "2022-04-06T16:08:04.031708-04:00" } }, { "id": 54694, "url": "https://lda.senate.gov/api/v1/clients/54694/?format=api", "client_id": 54694, "name": "ADVANCED PHOTONIC SCIENCES", "general_description": "lasers", "client_government_entity": null, "client_self_select": false, "state": "PA", "state_display": "Pennsylvania", "country": "US", "country_display": "United States of America", "ppb_state": "PA", "ppb_state_display": "Pennsylvania", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2023-03-13", "registrant": { "id": 400374717, "url": "https://lda.senate.gov/api/v1/registrants/400374717/?format=api", "house_registrant_id": 400374717, "name": "THE CONSILIO GROUP", "description": "Government affairs", "address_1": "20th F Street NW", "address_2": "Floor 7", "address_3": null, "address_4": null, "city": "Washington, D.C", "state": "DC", "state_display": "District of Columbia", "zip": "20001", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "OLIVER MEISSNER", "contact_telephone": "+1 202-510-4897", "dt_updated": "2025-07-23T13:55:40.981344-04:00" } }, { "id": 167846, "url": "https://lda.senate.gov/api/v1/clients/167846/?format=api", "client_id": 900, "name": "ADVANCED POWER SYSTEMS INTL", "general_description": "Fuel catalyst manufacturer", "client_government_entity": null, "client_self_select": null, "state": "CT", "state_display": "Connecticut", "country": "US", "country_display": "United States of America", "ppb_state": "CT", "ppb_state_display": "Connecticut", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2007-02-07", "registrant": { "id": 75557, "url": "https://lda.senate.gov/api/v1/registrants/75557/?format=api", "house_registrant_id": 36051, "name": "CORNERSTONE GOVERNMENT AFFAIRS, INC.", "description": "Government relations and consulting.", "address_1": "800 Maine Ave. SW Floor 7", "address_2": null, "address_3": null, "address_4": null, "city": "Washington", "state": "DC", "state_display": "District of Columbia", "zip": "20024", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "STACEY SCHOLL", "contact_telephone": "+1 202-370-1015", "dt_updated": "2025-07-24T17:48:54.531205-04:00" } }, { "id": 147817, "url": "https://lda.senate.gov/api/v1/clients/147817/?format=api", "client_id": 2970, "name": "ADVANCED POWER SYSTEMS INTL INC", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": null, "state_display": null, "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2001-07-15", "registrant": { "id": 39837, "url": "https://lda.senate.gov/api/v1/registrants/39837/?format=api", "house_registrant_id": 32802, "name": "VAN SCOYOC ASSOCIATES", "description": "Government Relations Consultant", "address_1": "800 Maine Avenue, SW", "address_2": "Suite 800", "address_3": null, "address_4": null, "city": "Washington", "state": "DC", "state_display": "District of Columbia", "zip": "20024", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "H. STEWART VAN SCOYOC", "contact_telephone": "+1 202-638-1950", "dt_updated": "2025-07-30T16:13:00.237087-04:00" } }, { "id": 110963, "url": "https://lda.senate.gov/api/v1/clients/110963/?format=api", "client_id": 191, "name": "ADVANCED POWER TECHNOLOGIES", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "DC", "state_display": "District of Columbia", "country": "US", "country_display": "United States of America", "ppb_state": "DC", "ppb_state_display": "District of Columbia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "1999-07-01", "registrant": { "id": 7942, "url": "https://lda.senate.gov/api/v1/registrants/7942/?format=api", "house_registrant_id": 32055, "name": "JOHN G. CAMPBELL, INC.", "description": null, "address_1": "1495 CHAIN BRIDGE ROAD", "address_2": "SUITE 302", "address_3": null, "address_4": null, "city": "MCLEAN", "state": "VA", "state_display": "Virginia", "zip": "22101", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "JONATHAN ETHERTON", "contact_telephone": "+1 703-442-8885", "dt_updated": "2022-04-06T16:06:52.856567-04:00" } }, { "id": 122610, "url": "https://lda.senate.gov/api/v1/clients/122610/?format=api", "client_id": 75, "name": "ADVANCED POWER TECHNOLOGIES", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "DC", "state_display": "District of Columbia", "country": "US", "country_display": "United States of America", "ppb_state": "DC", "ppb_state_display": "District of Columbia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2000-03-01", "registrant": { "id": 16965, "url": "https://lda.senate.gov/api/v1/registrants/16965/?format=api", "house_registrant_id": 16965, "name": "GRILES & ASSOC, J. STEVEN", "description": null, "address_1": "2600 VIRGINIA AVE NW #600", "address_2": null, "address_3": null, "address_4": null, "city": "WASHINGTON", "state": "DC", "state_display": "District of Columbia", "zip": "20037", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "", "contact_telephone": "", "dt_updated": "2022-01-13T14:48:11.138468-05:00" } }, { "id": 155073, "url": "https://lda.senate.gov/api/v1/clients/155073/?format=api", "client_id": 684, "name": "ADVANCED POWER TECHNOLOGIES INC", "general_description": "Specialized electronics and information systems", "client_government_entity": null, "client_self_select": null, "state": "DC", "state_display": "District of Columbia", "country": "US", "country_display": "United States of America", "ppb_state": "DC", "ppb_state_display": "District of Columbia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2001-09-05", "registrant": { "id": 48202, "url": "https://lda.senate.gov/api/v1/registrants/48202/?format=api", "house_registrant_id": 34493, "name": "AMERICAN SYSTEMS INTL CORP", "description": "9/15/03", "address_1": "2800 SHIRLINGTON RD., SUITE 401", "address_2": null, "address_3": null, "address_4": null, "city": "ARLINGTON", "state": "VA", "state_display": "Virginia", "zip": "22206", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "", "contact_telephone": "", "dt_updated": "2022-01-13T14:52:35.151675-05:00" } }, { "id": 187395, "url": "https://lda.senate.gov/api/v1/clients/187395/?format=api", "client_id": 12, "name": "ADVANCED PRACTICAL SOLUTIONS", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": null, "state_display": null, "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "1899-12-30", "registrant": { "id": 323912, "url": "https://lda.senate.gov/api/v1/registrants/323912/?format=api", "house_registrant_id": 38224, "name": "ADVANCED PRACTICAL SOLUTIONS", "description": null, "address_1": "227 W MONROE ST SUITE 2000", "address_2": null, "address_3": null, "address_4": null, "city": "CHICAGO ", "state": "IL", "state_display": "Illinois", "zip": "60606", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "", "contact_telephone": "", "dt_updated": "2022-01-13T14:56:45.575120-05:00" } }, { "id": 130310, "url": "https://lda.senate.gov/api/v1/clients/130310/?format=api", "client_id": 898, "name": "ADVANCED PROGRAMMING CONCEPTS", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "TX", "state_display": "Texas", "country": "US", "country_display": "United States of America", "ppb_state": "TX", "ppb_state_display": "Texas", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2000-01-01", "registrant": { "id": 23521, "url": "https://lda.senate.gov/api/v1/registrants/23521/?format=api", "house_registrant_id": 30350, "name": "THE PMA GROUP", "description": "Government Relations and Legislative Counsel", "address_1": "2345 CRYSTAL DRIVE, SUITE 300", "address_2": null, "address_3": null, "address_4": null, "city": "ARLINGTON", "state": "VA", "state_display": "Virginia", "zip": "22202", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "MRS. KAYLENE GREEN", "contact_telephone": "", "dt_updated": "2022-04-06T16:07:35.886905-04:00" } }, { "id": 108493, "url": "https://lda.senate.gov/api/v1/clients/108493/?format=api", "client_id": 1650, "name": "ADVANCED PROGRAMS", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "MD", "state_display": "Maryland", "country": "US", "country_display": "United States of America", "ppb_state": "MD", "ppb_state_display": "Maryland", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2003-07-15", "registrant": { "id": 6325, "url": "https://lda.senate.gov/api/v1/registrants/6325/?format=api", "house_registrant_id": 35883, "name": "BLANK ROME GOVERNMENT RELATIONS", "description": "Government Relations", "address_1": "1825 I Street, NW", "address_2": null, "address_3": null, "address_4": null, "city": "Washington", "state": "DC", "state_display": "District of Columbia", "zip": "20006", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "C.J. ZANE", "contact_telephone": "+1 202-772-5800", "dt_updated": "2025-07-23T14:06:40.994389-04:00" } }, { "id": 114756, "url": "https://lda.senate.gov/api/v1/clients/114756/?format=api", "client_id": 1472, "name": "ADVANCED PROJECTS RESEARCH INC", "general_description": null, "client_government_entity": false, "client_self_select": null, "state": "CA", "state_display": "California", "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2007-08-08", "registrant": { "id": 10800, "url": "https://lda.senate.gov/api/v1/registrants/10800/?format=api", "house_registrant_id": 31822, "name": "INNOVATIVE FEDERAL STRATEGIES, LLC", "description": "government relations", "address_1": "511 C Street NE", "address_2": null, "address_3": null, "address_4": null, "city": "Washington", "state": "DC", "state_display": "District of Columbia", "zip": "20002", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "WILLIAM TATUM", "contact_telephone": "+1 202-347-5990", "dt_updated": "2025-07-24T11:41:51.903421-04:00" } }, { "id": 139917, "url": "https://lda.senate.gov/api/v1/clients/139917/?format=api", "client_id": 6271, "name": "ADVANCED QUANTUM SENSORS INC", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "CA", "state_display": "California", "country": "US", "country_display": "United States of America", "ppb_state": "CA", "ppb_state_display": "California", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2007-07-23", "registrant": { "id": 32098, "url": "https://lda.senate.gov/api/v1/registrants/32098/?format=api", "house_registrant_id": 31355, "name": "K&L GATES, LLP", "description": "Law firm", "address_1": "1601 K Street, NW", "address_2": null, "address_3": null, "address_4": null, "city": "Washington", "state": "DC", "state_display": "District of Columbia", "zip": "20006", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "DINA KERLEY", "contact_telephone": "+1 202-661-3767", "dt_updated": "2025-07-24T15:48:53.393892-04:00" } }, { "id": 133511, "url": "https://lda.senate.gov/api/v1/clients/133511/?format=api", "client_id": 12, "name": "ADVANCED REFRACTORY TECHNOLOGIES", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": null, "state_display": null, "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "1996-02-14", "registrant": { "id": 25658, "url": "https://lda.senate.gov/api/v1/registrants/25658/?format=api", "house_registrant_id": 25658, "name": "MOLLOY, JAMES T.", "description": null, "address_1": "9226 ISPAHAN LOOP", "address_2": null, "address_3": null, "address_4": null, "city": "LAUREL", "state": "MD", "state_display": "Maryland", "zip": "20708", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "", "contact_telephone": "", "dt_updated": "2022-01-13T14:49:32.216278-05:00" } }, { "id": 107687, "url": "https://lda.senate.gov/api/v1/clients/107687/?format=api", "client_id": 12, "name": "ADVANCED REFRACTORY TECHNOLOGIES", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": null, "state_display": null, "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "1996-02-14", "registrant": { "id": 6028, "url": "https://lda.senate.gov/api/v1/registrants/6028/?format=api", "house_registrant_id": 32959, "name": "BERKSHIRE, INC.", "description": "Government Affairs", "address_1": "7800 Foxhound Road", "address_2": null, "address_3": null, "address_4": null, "city": "McLean", "state": "VA", "state_display": "Virginia", "zip": "22102", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "MICHAEL T. KELLEY", "contact_telephone": "", "dt_updated": "2022-04-06T16:06:05.803105-04:00" } }, { "id": 172460, "url": "https://lda.senate.gov/api/v1/clients/172460/?format=api", "client_id": 137, "name": "ADVANCED RESPIRATORY", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "MN", "state_display": "Minnesota", "country": "US", "country_display": "United States of America", "ppb_state": "MN", "ppb_state_display": "Minnesota", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2003-01-01", "registrant": { "id": 84673, "url": "https://lda.senate.gov/api/v1/registrants/84673/?format=api", "house_registrant_id": 36355, "name": "HART HEALTH STRATEGIES", "description": "Healthcare Consulting Firm", "address_1": "611 Pennsylvania Avenue, SE #393", "address_2": null, "address_3": null, "address_4": null, "city": "Washington", "state": "DC", "state_display": "District of Columbia", "zip": "20003", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "MRS. VICKI HART", "contact_telephone": "+1 202-441-3515", "dt_updated": "2025-07-10T20:49:15.091576-04:00" } }, { "id": 154984, "url": "https://lda.senate.gov/api/v1/clients/154984/?format=api", "client_id": 416, "name": "ADVANCED RESPIRATORY", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "MN", "state_display": "Minnesota", "country": "US", "country_display": "United States of America", "ppb_state": "MN", "ppb_state_display": "Minnesota", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2007-02-12", "registrant": { "id": 48111, "url": "https://lda.senate.gov/api/v1/registrants/48111/?format=api", "house_registrant_id": 34467, "name": "NUSGART CONSULTING LLC", "description": "Medical device manufacturer coalition management", "address_1": "5225 Pooks Hill Road, Ste. 1626N", "address_2": null, "address_3": null, "address_4": null, "city": "Bethesda", "state": "MD", "state_display": "Maryland", "zip": "20814", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "MS. MARCIA NUSGART", "contact_telephone": "+1 301-530-7846", "dt_updated": "2022-04-06T16:07:41.321846-04:00" } }, { "id": 187262, "url": "https://lda.senate.gov/api/v1/clients/187262/?format=api", "client_id": 125, "name": "ADVANCED ROBOTICS FOR MANUFACTURING (ARM)", "general_description": "Robotics Manufacturing R&D", "client_government_entity": false, "client_self_select": null, "state": "PA", "state_display": "Pennsylvania", "country": "US", "country_display": "United States of America", "ppb_state": "PA", "ppb_state_display": "Pennsylvania", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2019-09-17", "registrant": { "id": 323318, "url": "https://lda.senate.gov/api/v1/registrants/323318/?format=api", "house_registrant_id": 39886, "name": "BRODY GROUP L.L.C. 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