Washington, DC Government Contractors > By Category > NAICS 541990 - All Other Professional, Scientific, and Technical Services
Government Contractors in Washington, DC
Results for NAICS 541990 - All Other Professional, Scientific, and Technical Services
851 - 875 of 885 Company(ies)
INDYNE, INC. - Washington, DC
Electrical Contractors, Teleproduction and Other Postproduction Services, Wired Telecommunications Carriers, Engineering Services, Custom Computer Programming Services
(703) 903-6900
400 Virginia Ave Sw Ste 350 Washington, DC 20024
RESULTS FOR DEVELOPMENT INSTITUTE, INC. - Washington, DC
Administrative Management and General Management Consulting Services, Research and Development in the Social Sciences and Humanities, All Other Professional, Scientific, and Technical Services
(202) 640-6051
1100 15th St Nw Washington, DC 20005
HNTB CORPORATION - Washington, DC
Architectural Services, Landscape Architectural Services, Engineering Services, All Other Professional, Scientific, and Technical Services
(816) 527-2630
1615 M St Nw Ste 700 Washington, DC 20036
MICROFINANCE OPPORTUNITIES INC - Washington, DC
Research and Development in the Social Sciences and Humanities, All Other Professional, Scientific, and Technical Services, Professional and Management Development Training
(202) 721-0050
1701 K St Nw Ste 650 Washington, DC 20006
ZIMMERMAN ASSOCIATES, INC. - Washington, DC
Other Warehousing and Storage, All Other Publishers, Wired Telecommunications Carriers, Data Processing, Hosting, and Related Services, Libraries and Archives
(703) 883-0506
1201 M St Se Ste 260 Washington, DC 20003
LIVABLE CITY GROUP - Washington, DC
Architectural Services, Landscape Architectural Services, Administrative Management and General Management Consulting Services, Environmental Consulting Services, All Other Professional, Scientific, and Technical Services
(202) 222-8710
1512 Monroe St Nw Washington, DC 20010
MAIN STREET GENOME, INC. - Washington, DC
Business to Business Electronic Markets, Software Publishers, Other Scientific and Technical Consulting Services, All Other Professional, Scientific, and Technical Services, All Other Business Support Services
(828) 545-0810
1627 K St Nw Ste 600 Washington, DC 20006
MIKELL, SARAH - Washington, DC
All Other Professional, Scientific, and Technical Services
(859) 229-9617
1113 I St Ne Washington, DC 20002
NATIONAL ASSOCIATION OF STATE ALCOHOL AND DRUG ABUSE DIRECTORS, INC - Washington, DC
All Other Professional, Scientific, and Technical Services
(202) 293-0090
1025 Connecticut Ave Nw Ste 605 Washington, DC 20036
PARSONS GOVERNMENT SERVICES INC. - Washington, DC
Water Supply and Irrigation Systems, Commercial and Institutional Building Construction, Engineering Services, Drafting Services, Building Inspection Services
(626) 440-6176
100 M St # 1200 Washington, DC 20003
PLATTS, JEFFREY ADRIAN - Washington, DC
All Other Information Services, Human Resources and Executive Search Consulting Services, All Other Professional, Scientific, and Technical Services, All Other Miscellaneous Schools and Instruction, Independent Artists, Writers, and Performers
(202) 669-8060
1701 16th St Nw #336 Washington, DC 20009
CENTER FOR THE EMPIRICAL STUDY OF GOVERNANCE - Washington, DC
All Other Information Services, Administrative Management and General Management Consulting Services, Human Resources and Executive Search Consulting Services, Marketing Consulting Services, Other Management Consulting Services
(202) 714-8278
240 8th St Se Washington, DC 20003
GORDON, DANIEL I. - Washington, DC
Other Scientific and Technical Consulting Services, All Other Professional, Scientific, and Technical Services
(202) 332-3289
1517 T St Nw Washington, DC 20009
AMERICAN PUBLIC HUMAN SERVICES ASSOCIATION - Washington, DC
Other Management Consulting Services, All Other Professional, Scientific, and Technical Services
(202) 682-0100
1133 19th St Nw Ste 400 Washington, DC 20036
HORST FRISCH INCORPORATED - Washington, DC
All Other Professional, Scientific, and Technical Services
(202) 974-4666
1255 23rd St Nw Ste 200 Washington, DC 20037
MCKINSEY & COMPANY, INC. WASHINGTON D.C. - Washington, DC
Custom Computer Programming Services, Computer Systems Design Services, Computer Facilities Management Services, Other Computer Related Services, Administrative Management and General Management Consulting Services
(202) 662-3338
1200 19th St Nw Ste 1100 Washington, DC 20036
STECK CONSULTING, LLC - Washington, DC
Custom Computer Programming Services, Computer Systems Design Services, Other Computer Related Services, Other Scientific and Technical Consulting Services, All Other Professional, Scientific, and Technical Services
(202) 887-0191
1730 Rhode Island Ave Nw Ste 401 Washington, DC 20036
TASC, INC. - Washington, DC
Teleproduction and Other Postproduction Services, Other Accounting Services, Engineering Services, Other Specialized Design Services, Custom Computer Programming Services
(703) 449-3064
80 M St Se Ste 500 Washington, DC 20003
CHEMONICS INTERNATIONAL, INC - Washington, DC
Administrative Management and General Management Consulting Services, Other Management Consulting Services, Environmental Consulting Services, Research and Development in the Social Sciences and Humanities, All Other Professional, Scientific, and Technical Services
(202) 955-3330
1717 H St Nw Ste 1 Washington, DC 20006
AMERICAN SOCIETY FOR ENGINEERING EDUCATION - Washington, DC
Engineering Services, All Other Professional, Scientific, and Technical Services, Office Administrative Services, Professional Organizations
(202) 331-3552
1818 N St Nw Ste 600 Washington, DC 20036
NATIONAL QUALITY FORUM - Washington, DC
All Other Professional, Scientific, and Technical Services, Professional Organizations
(202) 783-1300
1030 15th St., Nw Suite 800 Washington, DC 20005
REGENT SOLUTIONS, LLC - Washington, DC
Engineering Services, Custom Computer Programming Services, Computer Systems Design Services, Other Computer Related Services, Administrative Management and General Management Consulting Services
(571) 327-0838
596 Regent Place Ne Washington, DC 20017
AMERICAN ACADEMY FOR STRATEGIC EDUCATION - Washington, DC
Other Scientific and Technical Consulting Services, Research and Development in the Social Sciences and Humanities, All Other Professional, Scientific, and Technical Services, Business and Secretarial Schools, Professional and Management Development Training
(202) 331-3092
1920 N St Nw Ste 210 Washington, DC 20036
NOVAK DRUCE & QUIGG LLP - Washington, DC
Lessors of Nonfinancial Intangible Assets (except Copyrighted Works), Offices of Lawyers, All Other Legal Services, All Other Professional, Scientific, and Technical Services
(410) 286-9409
1875 I (eye) St Nw 11th Fl Washington, DC 20006
AMERICAN SOCIETY FOR ENGINEERING EDUCATION - Washington, DC
Engineering Services, All Other Professional, Scientific, and Technical Services, Office Administrative Services, Professional Organizations
(202) 331-3552
1818 N St Nw Ste 600 Washington, DC 20036
Certifications
Ownership / Diversity
Business Type
NAICS Code
- 11 - Agriculture & Livestock
- 21 - Mining, Oil & Gas
- 22 - Utilities
- 23 - Construction
- 31 - Food & Apparel
- 32 - Non-Metallic Manufacturing
- 33 - Metallic Manufacturing
- 42 - Wholesale Trade
- 44 - Retail Trade
- 45 - Retail Trade - Misc.
- 48 - Transportation
- 49 - Postal & Warehousing
- 51 - IT Technology
- 52 - Finance and Insurance
- 53 - Real Estate
- 54 - Professional Services
- 541 - Professional, Scientific, and Technical Services
- 541110 - Offices of Lawyers
- 541120 - Offices of Notaries
- 541191 - Title Abstract and Settlement Offices
- 541199 - All Other Legal Services
- 541211 - Offices of Certified Public Accountants
- 541213 - Tax Preparation Services
- 541214 - Payroll Services
- 541219 - Other Accounting Services
- 541310 - Architectural Services
- 541320 - Landscape Architectural Services
- 541330 - Engineering Services
- 541340 - Drafting Services
- 541350 - Building Inspection Services
- 541360 - Geophysical Surveying and Mapping Services
- 541370 - Surveying and Mapping (except Geophysical) Services
- 541380 - Testing Laboratories
- 541410 - Interior Design Services
- 541420 - Industrial Design Services
- 541430 - Graphic Design Services
- 541490 - Other Specialized Design Services
- 541511 - Custom Computer Programming Services
- 541512 - Computer Systems Design Services
- 541513 - Computer Facilities Management Services
- 541519 - Other Computer Related Services
- 541611 - Administrative Management and General Management Consulting Services
- 541612 - Human Resources and Executive Search Consulting Services
- 541613 - Marketing Consulting Services
- 541614 - Process, Physical Distribution, and Logistics Consulting Services
- 541618 - Other Management Consulting Services
- 541620 - Environmental Consulting Services
- 541690 - Other Scientific and Technical Consulting Services
- 541710 - Research and Development in the Physical, Engineering, and Life Sciences
- 541720 - Research and Development in the Social Sciences and Humanities
- 541810 - Advertising Agencies
- 541820 - Public Relations Agencies
- 541830 - Media Buying Agencies
- 541840 - Media Representatives
- 541850 - Display Advertising
- 541860 - Direct Mail Advertising
- 541870 - Advertising Material Distribution Services
- 541890 - Other Services Related to Advertising
- 541910 - Marketing Research and Public Opinion Polling
- 541921 - Photography Studios, Portrait
- 541922 - Commercial Photography
- 541930 - Translation and Interpretation Services
- 541940 - Veterinary Services
- 541990 - All Other Professional, Scientific, and Technical Services
- 55 - Company Management
- 56 - Administrative Service
- 61 - Educational Services
- 62 - Health Care
- 71 - Arts and Entertainment
- 72 - Travel & Food Services
- 81 - Other Services
- 92 - Public Administration
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