Washington, DC Government Contractors > By Category > NAICS 541620 - Environmental Consulting Services
Government Contractors in Washington, DC
Results for NAICS 541620 - Environmental Consulting Services
326 - 344 of 344 Company(ies)
WILLIAM A COWART - Washington, DC
Process, Physical Distribution, and Logistics Consulting Services, Other Management Consulting Services, Environmental Consulting Services, Other Scientific and Technical Consulting Services
(202) 577-1356
3745 W Street, Nw Washington, DC 20007
CENTER FOR ENVIRONMENTAL INNOVATION IN ROOFING - Washington, DC
Industrial Building Construction, Roofing Contractors, Roofing, Siding, and Insulation Material Merchant Wholesalers, Other Activities Related to Real Estate, Architectural Services
202-380-3371 x203
816 Connecticut Ave Nw 5th Fl Washington, DC 20006
CROWN AGENTS USA INC. - Washington, DC
Administrative Management and General Management Consulting Services, Process, Physical Distribution, and Logistics Consulting Services, Other Management Consulting Services, Environmental Consulting Services, Other Scientific and Technical Consulting Services
(202) 822-8052
1129 20th St Nw Ste 500 Washington, DC 20036
E3G, THIRD GENERATION ENVIRONMENTALISM INC. - Washington, DC
Environmental Consulting Services, Research and Development in the Social Sciences and Humanities
(202) 466-0575
1250 24th St Nw Ste 300 Washington, DC 20037
CH2M HILL, INC. - Washington, DC
Natural Gas Distribution, Water Supply and Irrigation Systems, Sewage Treatment Facilities, Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction
(720) 286-2586
901 New York Ave Nw Ste 4000 Washington, DC 20001
RUMMEL, KLEPPER & KAHL, LLP - Washington, DC
Support Activities for Oil and Gas Operations, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction, Highway, Street, and Bridge Construction
(410) 728-2900
1250 Connecticut Ave Nw Ste 200 Washington, DC 20036
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
METES, MARINA - Washington, DC
Environmental Consulting Services
(313) 410-0336
736 6th St Sw Apt 309 Washington, DC 20024
PARSONS BRINCKERHOFF, INC. - Washington, DC
Commercial and Institutional Building Construction, Highway, Street, and Bridge Construction, Architectural Services, Landscape Architectural Services, Engineering Services
(703) 742-5746
1401 K St Nw Ste 701 Washington, DC 20005
HDR ENGINEERING INC. - Washington, DC
Commercial and Institutional Building Construction, Highway, Street, and Bridge Construction, Plumbing, Heating, and Air-Conditioning Contractors, All Other Specialty Trade Contractors, Architectural Services
(402) 399-1457
100 M Street Se Ste 305 Washington, DC 20003
NATIONAL ALLIANCE TO END HOMELESSNESS, INCORPORATED (THE) - Washington, DC
All Other Information Services, Environmental Consulting Services, Research and Development in the Social Sciences and Humanities, Professional and Management Development Training, All Other Miscellaneous Schools and Instruction
(202) 638-1526
1518 K St Nw Fl 2 Washington, DC 20005
MWH AMERICAS, INC. - Washington, DC
Engineering Services, Administrative Management and General Management Consulting Services, Environmental Consulting Services, Other Scientific and Technical Consulting Services, Office Administrative Services
(303) 385-5658
1101 14th St Ste 1200 Washington, DC 20005
ALION SCIENCE AND TECHNOLOGY CORPORATION - Washington, DC
Architectural Services, Engineering Services, Computer Facilities Management Services, Administrative Management and General Management Consulting Services, Environmental Consulting Services
(703) 269-3437
1100 New Jersey Ave Se Ste 200 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
SMARTPOWER, INC - Washington, DC
Environmental Consulting Services
(202) 775-2041
1120 Connecticut Ave Nw Ste 1040 Washington, DC 20036
A BERGER/HILL JOINT VENTURE - Washington, DC
Residential Remodelers, Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction
(202) 408-3000
1225 Eye St Nw Ste 601 Washington, DC 20005
Sobota Safety LLC - Washington, DC
Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers, Engineering Services, Administrative Management and General Management Consulting Services, Environmental Consulting Services, Other Scientific and Technical Consulting Services
1455 Pennsylvania Ave Ste 400 Washington, DC 20004
SCHOLZ-BARTH, KATRIN - Washington, DC
Environmental Consulting Services
122 4th St Se Washington, DC 20003
GREEN MEDIA TOOLSHED, INC. - Washington, DC
Environmental Consulting Services
1915 I St Nw Ste 700 Washington, DC 20006
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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