OASIS/OASIS SB 

POOL 1

($16.5M Business Size Standard)

NAICS Code NAICS Title/Description

541330 Engineering Services

This industry comprises establishments primarily engaged in applying physical laws and principles of engineering in the 

design, development, and utilization of machines, materials, instruments, structures, processes, and systems. The 

assignments undertaken by these establishments may involve any of the following activities: provision of advice, 

preparation of feasibility studies, preparation of preliminary and final plans and designs, provision of technical services 

during the construction or installation phase, inspection and evaluation of engineering projects, and related services.

541360 Geophysical Surveying and Mapping Services

This industry comprises establishments primarily engaged in gathering, interpreting, and mapping geophysical data. 

Establishments in this industry often specialize in locating and measuring the extent of subsurface resources, such as oil, gas, 

and minerals, but they may also conduct surveys for engineering purposes. Establishments in this industry use a variety of 

surveying techniques depending on the purpose of the survey, including magnetic surveys, gravity surveys, seismic surveys, or

electrical and electromagnetic surveys.

541370 Surveying And Mapping (Except Geophysical) Services

This industry comprises establishments primarily engaged in performing surveying and mapping services of the surface of the 

earth, including the sea floor. These services may include surveying and mapping of areas above or below the surface of the 

earth, such as the creation of view easements or segregating rights in parcels of land by creating underground utility 

easements.

541380 Testing Laboratories

This industry comprises establishments primarily engaged in performing physical, chemical, and other analytical testing 

services, such as acoustics or vibration testing, assaying, biological testing (exceptmedical and veterinary), calibration testing, 

electrical and electronic testing, geotechnical testing,mechanical testing, nondestructive testing, orthermal testing. The testing 

may occur in a laboratory or on-site.

541611 Administrative Management and General Management Consulting Services

This U.S. industry comprises establishments primarily engaged in providing operating advice and assistance to businesses 

and other organizations on administrative management issues, such as financial planning and budgeting, equity and asset 

management, records management, office planning, strategic and organizational planning, site selection, new business 

startup, and business process improvement. This industry also includes establishments of general management 

consultants that provide a full range of administrative; human resource; marketing; process, physical distribution, and 

logistics; or other management consulting services to clients.

541612 Human Resources Consulting Services

This U.S. industry comprises establishments primarily engaged in providing advice and assistance to businesses and other 

organizations in one or more of the following areas: (1) human resource and personnel policies, practices, and procedures;

(2) employee benefits planning, communication, and administration; (3) compensation systems planning; and (4) wage and 

salary administration.
541613 Marketing Consulting Services

This U.S. industry comprises establishments primarily engaged in providing operating advice and assistance to 

businesses and other organizations on marketing issues, such as developing marketing objectives and policies, sales 

forecasting, new product developing and pricing, licensing and franchise planning, and marketing planning and strategy.

541614 Process, Physical Distribution, and Logistics Consulting Services

This U.S. industry comprises establishments primarily engaged in providing operating advice and assistance to businesses 

and other organizations in areas, such as: (1) manufacturing operations improvement; (2) productivity improvement; (3) 

production planning and control; (4) quality assurance and quality control; (5) inventory management; (6) distribution 

networks; (7) warehouse use, operations, and utilization; (8) transportation and shipment of goods and materials; and (9) 

materials management and handling.

541618 Other Management Consulting Services

This U.S. industry comprises establishments primarily engaged in providing management consulting services (except 

administrative and general management consulting; human resources consulting; marketing consulting; or process, physical 

distribution, and logistics consulting).Establishments providing telecommunications or utilities management consulting services 

are included in this industry.

541620 Environmental Consulting Services

This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other 

organizations on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, 

and hazardous materials. These establishments identify problems (e.g., inspect buildings for hazardous materials), measure 

and evaluate risks, and recommend solutions. They employ a multidisciplined staff of scientists, engineers, and other 

technicians with expertise in areas, such as air and water quality, asbestos contamination, remediation, and environmental law. 

Establishments providing sanitation or site remediation consulting services are included in this industry.

541690 Other Scientific and Technical Consulting Services

This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other 

organizations on scientific and technical issues (except environmental).

541810 Advertising Agencies

This industry comprises establishments primarily engaged in creating advertising campaigns and placing such advertising in 

periodicals, newspapers, radio and television, or other media. These establishments are organized to provide a full range of 

services (i.e., through in-house capabilities or subcontracting), including advice, creative services, account management, 

production of advertising material, media planning, and buying (i.e., placing advertising).

541820 Public Relations Agencies

This industry comprises establishments primarily engaged in designing and implementing public relations campaigns. These 

campaigns are designed to promote the interests and image of their clients. Establishments providing lobbying, political 

consulting, or public relations consulting are included in this industry.
541830 Media Buying Agencies

This industry comprises establishments primarily engaged in purchasing advertising time or space from media outlets and 

reselling it to advertising agencies or individual companies directly.

541840 Media Representatives

This industry comprises establishments of independent representatives primarily engaged in selling media time or space for 

media owners.

541850 Outdoor Advertising

This industry comprises establishments primarily engaged in creating and designing public display advertising campaign 

materials, such as printed, painted, or electronic displays; and/or placing such displays on indoor or outdoor billboards and

panels, or on or within transit vehicles or facilities, shopping malls, retail (in-store) displays, and other display structures or 

sites

541860 Direct Mail Advertising

This industry comprises establishments primarily engaged in (1) creating and designing advertising campaigns for the purpose 

of distributing advertising materials (e.g., coupons, flyers, samples) or specialties (e.g., key chains, magnets, pens with 

customized messages imprinted) by mail or other direct distribution; and/or (2) preparing advertising materials or specialties for 

mailing or other direct distribution. These establishments may also compile, maintain, sell, and rent mailing lists.

541870 Advertising Material Distribution Services

This industry comprises establishments primarily engaged in the direct distribution or delivery of advertisements (e.g., circulars, 

coupons, handbills) or samples. Establishments in this industry use methods, such as delivering advertisements or samples 

door-to-door, placing flyers or coupons on car windshields in parking lots, or handing out samples in retail stores.

541890 Other Services Related to Advertising

This industry comprises establishments primarily engaged in providing advertising services (except advertising agency 

services, public relations agency services, media buying agency services, media representative services, display advertising 

services, direct mail advertising services, advertising material distribution services, and marketing consulting services).

541910 Marketing Research and Public Opinion Polling

This industry comprises establishments primarily engaged in systematically gathering, recording, tabulating, and presenting 

marketing and public opinion data.

541990 All Other Professional, Scientific, and Technical Services

This industry comprises establishments primarily engaged in the provision of professional, scientific, or technical services 

(except legal services; accounting, tax preparation, bookkeeping, and related services; architectural, engineering, and related 

services; specialized design services; computer systems design and related services; management, scientific, and technical 

consulting services; scientific research and development services; advertising, public relations and related services; market

research and public opinion polling; photographic services; translation and interpretation services; and veterinary services).
OASIS/OASIS SB 

POOL 2

($22M Business Size Standard)

NAICS Code NAICS Title/Description

541211 Offices of Certified Public Accountants

This U.S. industry comprises establishments of accountants that are certified to audit the accounting records of public and 

private organizations and to attest to compliance with generally accepted accounting practices. Offices of certified public 

accountants (CPAs) may provide one or more of the following accounting services: (1) auditing financial statements; (2) 

designing accounting systems; (3) preparing financial statements; (4) developing budgets; and (5) providing advice on 

matters related to accounting. These establishments may also provide related services, such as bookkeeping, tax return 

preparation, and payroll processing.

541213 Tax Preparation Services

This U.S. industry comprises establishments (except offices of CPAs) engaged in providing tax return preparation services 

without also providing accounting, bookkeeping, billing, or payroll processing services. Basic knowledge of tax lawand filing 

requirements is required.

541214 Payroll Services

This U.S. industry comprises establishments (except offices of CPAs) engaged in the following without also providing 

accounting, bookkeeping, or billing services: (1) collecting information on hours worked, pay rates, deductions, and other 

payroll-related data from their clients; and (2) using that information to generate paychecks, payroll reports, and tax filings. 

These establishments may use data processing and tabulating techniques as part of providing their services.

541219

Other Accounting Services

This U.S. industry comprises establishments (except offices of CPAs) engaged in providing accounting services (except tax 

return preparation services only or payroll services only). These establishments may also provide tax return preparation or 

payroll services. Accountant (except CPA) offices, bookkeeper offices, and billing offices are included in this industry.

541720

Research and Development in the Social Sciences and Humanities

This industry comprises establishments primarily engaged in conducting research and analyses in cognitive development, 

sociology, psychology, language, behavior, economic, and other social science and humanities research.

OASIS/OASIS SB 

POOL 3

($41.5M Business Size Standard)

NAICS Code NAICS Title/Description
541330

Exception 

A

Military and Aerospace Equipment and Military Weapons

The Engineering description is the same as the Engineering description under Pool 1 for 541330; however, if the 

Engineering is related to Military, Aerospace Equipment, or Military Weapons; Pool 3, Exception A applies.

541330

Exception B

Contracts and Subcontracts for Engineering Services Awarded Under the National 

Energy Policy Act of 1992

The Engineering description is the same as the Engineering description under Pool 1 for 541330; however, if the 

Engineering is related to Contracts and Subcontracts for Engineering Services Awarded Under the National Energy 

Policy Act of 1992; Pool 3, Exception B applies.

541330

Exception C

Marine Engineering and Naval Architecture

The Engineering description is the same as the Engineering description under Pool 1 for 541330; however, if the 

Engineering is related to Marine Engineering and Naval Architecture: Pool 3, Exception C applies.

OASIS/OASIS SB 

POOL 4

(1,000 Employees Business Size Standard)

NAICS Code NAICS Title/Description

541713 Research and Development in Nanotechnology

This U.S. industry comprises establishments primarily engaged in conducting biotechnology research and experimental 

development. Biotechnology research and experimental development involves the study of the use of microorganisms and 

cellular and biomolecular processes to develop or alter living or non-living materials. This research and development in 

biotechnology may result in development of new biotechnology processes or in prototypes of new or genetically-altered 

products that may be reproduced, utilized, or implemented by various industries.

541714 Research and Development in Biotechnology (except Nanobiotechnology)

This U.S. industry comprises establishments primarily engaged in conducting biotechnology (except nanobiotechnology) 

research and experimental development. Biotechnology (except nanobiotechnology) research and experimental development 

involves the study of the use of microorganisms and cellular and biomolecular processes to develop or alter living or non-living 

materials. This research and development in biotechnology (except nanobiotechnology) may result in development of new 

biotechnology (except nanobiotechnology) processes or in prototypes of new or genetically-altered products that may be 

reproduced, utilized, or implemented by various industries.

541715 Research and Development in the Physical, Engineering, and Life Sciences (except 

Nanotechnology and Biotechnology)

This U.S. Industry comprises establishments primarily engaged in conducting research and experimental development (except 

nanotechnology and biotechnology research and experimental development) in the physical, engineering, and life sciences, 

such as agriculture, electronics, environmental, biology, botany, computers, chemistry, food, fisheries, forests, geology, health, 

mathematics, medicine, oceanography, pharmacy, physics, veterinary and other allied subjects.

OASIS/OASIS SB

POOL 5A
(1,250 Employees Business Size Standard)

NAICS Code NAICS Title/Description

541715

Exception 

B

Research and Development in Other Aircraft Parts and Auxiliary Equipment

The Research and Development (R&D) description is the same as the R&D description in Pool 4 for 541715; however, 

if the R&D is related to Other Aircraft Parts and Auxiliary Equipment; Pool 5A Exception B applies.

OASIS/OASIS SB 

POOL 5B

(1,250 Employees Business Size Standard)

NAICS Code NAICS Title/Description

541715

Exception 

C

Research and Development in Guided Missiles and Space Vehicles, Their 

Propulsion Units and Propulsion Parts

The Research and Development (R&D) description is the same as the R&D description in Pool 4 for 541715; 

however, if the R&D is related to Guided Missiles and Space Vehicles, Their Propulsion Units and Propulsion Parts; 

Pool 5B Exception C applies.

OASIS/OASIS SB 

POOL 6

(1,500 Employees Business Size Standard)

NAICS Code NAICS Title/Description

541715

Exception 

A

Research and Development in Aircraft, Aircraft Engine and Engine Parts

The Research and Development (R&D) description is the same as the R&D description in Pool 4 for 541715; however, if the 

R&D is related to Aircraft, Aircraft Engine and Engine Parts; Pool 6 Exception A applies.

NOTE: Federal Procurement Data Systems-Next Generation (FPDS-NG) limit only ONE NAICS 

Code per Pool due to system limitations. Regarding pools with more than one NAICS code, 

the order will default in FPDS-NG to the NAICS marked in red underlined text.