541620 — Environmental Consulting Services
Description
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, ecological restoration, and environmental law. Establishments providing sanitation or site remediation consulting services are included in this industry.
Exclusions & Cross-References
- Establishments primarily engaged in environmental remediation are classified in Industry 562910,
- Remediation Services;
- Establishments primarily engaged in providing environmental engineering services are classified in
- Industry 541330, Engineering Services;
- Establishments primarily engaged in providing environmental testing services are classified in Industry
- 541380, Testing Laboratories and Services;
- Establishments primarily engaged in promoting the preservation and protection of the environment are
- classified in U.S. Industry 813312, Environment, Conservation and Wildlife Organizations;
- Establishments primarily engaged in individual activities as part of an ecological restoration project are
- classified according to the primary activity; and
- Government establishments primarily engaged in administering, overseeing, and managing governmental
- ecological restoration programs are classified in Industry 924110, Administration of Air and Water
Overview Facts
| NAICS Code | 541620 |
|---|---|
| Industry Title | Environmental Consulting Services |
| SBA Size Standard | $19,000,000 |
| IRS PBA Code | 541600 (rolled-up match) |
| Sectors Hierarchy | Sector 54 → 541 → 5416 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 8999 - Services, NEC (via SIC1987:8999→NAICS1997:54162→2002:541620→2007:541620→2012:541620→2017:541620→2022:541620)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 541620:
- Sector 54 Directory Hub — List of related industries in the Professional, Scientific, and Technical Services sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 5416
Frequently Asked Questions (FAQ)
Is 541620 a valid 2022 NAICS code?
NAICS 541620 is 'Environmental Consulting Services', a 2022 U.S. national industry under Sector 54 (Professional, Scientific, and Technical Services); the SBA small-business size standard is $19,000,000.
What is the SBA size standard for NAICS 541620?
The SBA small business size standard for NAICS 541620 is $19,000,000 (based on receipts).
What is the legacy SIC code mapping for 541620?
NAICS code 541620 maps to the legacy 1987 SIC codes: 8999 - Services, NEC.