This NAICS page summarizes federal procurement for environmental consulting services, with 49,912 award actions and an average action value of $122,871.27. The Environmental Protection Agency leads the category, followed by the Department of the Army, the Department of Energy, NOAA, and the Bureau of Land Management.
NAICS Industry
NAICS 541620 Federal Contract Obligations (Last 5 Years)
FPDS data for NAICS 541620 covers $6.13 billion in obligated federal environmental consulting services over the last 5 years.
Figures reflect the last 5 years of readable FPDS obligations and award actions for NAICS 541620.
NAICS Code
541620
Industry
ENVIRONMENTAL CONSULTING SERVICES
Total Obligated
6.13 billion
6,132,750,930.57
Award Actions
49,912
Average Action Value
122,871.27
About NAICS 541620 federal contract activity
NAICS 541620, Environmental Consulting Services, recorded $6.13 billion in obligated contract actions across 49,912 awards over the last 5 years, with an average award value of $122,871.27. The data indicates a high-volume market characterized by frequent, relatively small-to-mid-sized obligations rather than a small number of large awards.
Agency demand and leading federal buyers
The Environmental Protection Agency led spending in this NAICS with $1.73 billion across 17,348 awards, followed by the Department of the Army at $1.12 billion across 5,191 awards. Energy, NOAA, and the Bureau of Land Management also represented major demand centers, indicating that environmental consulting is used across regulatory, defense, scientific, and land management missions.
Vendor concentration and leading contractors
TETRA TECH, INC. was the top vendor with $456.80 million across 3,816 awards, followed by EASTERN RESEARCH GROUP, INC. at $280.62 million across 3,011 awards. PROJECT ENHANCEMENT CORPORATION, WESTON SOLUTIONS, INC., and LYNKER TECHNOLOGIES LLC also ranked among the leading recipients, showing a mix of high-volume incumbents and firms with more concentrated award totals.
Annual contract trend over the analysis window
Annual obligations peaked in 2024 at $1.42 billion and remained at a similar level in 2023 at $1.41 billion, before easing to $1.09 billion in 2025. The five-year pattern shows a generally elevated and stable market, with 2021 and 2022 lower than the 2023 to 2024 period but still above $1.03 billion each year.
How to interpret this page
This summary uses FPDS obligations for NAICS 541620 over the last 5 years and reflects reported contract award data. Agency and vendor rankings are based on total obligated dollars within the selected NAICS and period, and annual trend values represent obligations by fiscal year.
Top Agencies
SELECT
agency_id,
agency_name,
total_obligated,
award_count,
formatReadableQuantity(total_obligated) AS total_obligated_readable
FROM
(
SELECT
content__award__purchaserInformation__contractingOfficeAgencyID AS agency_id,
anyHeavy(content__award__purchaserInformation__contractingOfficeAgencyID__name) AS agency_name,
sum(content__award__dollarValues__obligatedAmount) AS total_obligated,
count() AS award_count
FROM fpds.data
WHERE
contract_type = 1
AND content__award__productOrServiceInformation__principalNAICSCode = '541620'
AND content__award__purchaserInformation__contractingOfficeAgencyID IS NOT NULL
AND content__award__purchaserInformation__contractingOfficeAgencyID != ''
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) >= toStartOfYear(now()) - INTERVAL 5 YEAR
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) < toStartOfYear(now())
GROUP BY agency_id
)
ORDER BY total_obligated DESC
LIMIT 10| Agency ID | Agency Name | Total Obligated | Readable | Award Actions |
|---|---|---|---|---|
| 6800 | ENVIRONMENTAL PROTECTION AGENCY | 1,732,975,550.71 | 1.73 billion | 17,348 |
| 2100 | DEPT OF THE ARMY | 1,121,353,296.72 | 1.12 billion | 5,191 |
| 8900 | ENERGY, DEPARTMENT OF | 480,080,668.69 | 480.08 million | 1,868 |
| 1330 | NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION | 416,678,989.00 | 416.68 million | 1,456 |
| 1422 | BUREAU OF LAND MANAGEMENT | 220,887,820.50 | 220.89 million | 3,546 |
| 8000 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | 190,814,795.36 | 190.81 million | 1,009 |
| 7200 | AGENCY FOR INTERNATIONAL DEVELOPMENT | 187,499,858.90 | 187.50 million | 151 |
| 1700 | DEPT OF THE NAVY | 174,088,754.46 | 174.09 million | 1,529 |
| 4732 | FEDERAL ACQUISITION SERVICE | 142,543,876.24 | 142.54 million | 360 |
| 7022 | FEDERAL EMERGENCY MANAGEMENT AGENCY | 109,710,870.27 | 109.71 million | 389 |
Insight
Over the last 5 years, NAICS 541620 obligations total $6.13 billion across 49,912 awards, with an average award value of about $122.9K, indicating a high-volume, relatively low-dollar procurement pattern. EPA is the dominant buyer at $1.73 billion and 17,348 awards, followed by the Department of the Army at $1.12 billion and DOE at $480.1 million, showing that spending is concentrated among a small set of agencies. The remaining top agencies are materially lower and more dispersed, with NOAA, BLM, NASA, USAID, the Navy, FAS, and FEMA each below $417 million, suggesting broad but less concentrated demand beyond the top two agencies.
Top Vendors
SELECT
vendor_name,
cage_code,
total_obligated,
award_count,
formatReadableQuantity(total_obligated) AS total_obligated_readable
FROM
(
SELECT
content__award__vendor__vendorHeader__vendorName AS vendor_name,
anyHeavy(content__award__vendor__vendorSiteDetails__entityIdentifiers__cageCode) AS cage_code,
sum(content__award__dollarValues__obligatedAmount) AS total_obligated,
count() AS award_count
FROM fpds.data
WHERE
contract_type = 1
AND content__award__productOrServiceInformation__principalNAICSCode = '541620'
AND content__award__vendor__vendorHeader__vendorName IS NOT NULL
AND content__award__vendor__vendorHeader__vendorName != ''
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) >= toStartOfYear(now()) - INTERVAL 5 YEAR
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) < toStartOfYear(now())
GROUP BY vendor_name
)
ORDER BY total_obligated DESC
LIMIT 10| Vendor | CAGE Code | Total Obligated | Readable | Award Actions |
|---|---|---|---|---|
| TETRA TECH, INC. | 0YEM5 | 456,803,160.75 | 456.80 million | 3,816 |
| EASTERN RESEARCH GROUP, INC. | 00GP8 | 280,622,479.96 | 280.62 million | 3,011 |
| PROJECT ENHANCEMENT CORPORATION | 1SMK8 | 240,040,519.91 | 240.04 million | 333 |
| WESTON SOLUTIONS, INC. | 2M222 | 161,784,514.45 | 161.78 million | 1,325 |
| LYNKER TECHNOLOGIES LLC | 56F28 | 132,175,535.85 | 132.18 million | 194 |
| ENVIRONMENTAL INCENTIVES, LLC | 5DCQ8 | 119,126,352.44 | 119.13 million | 75 |
| BOSTON GOVERNMENT SERVICES, LLC | 4WTQ0 | 115,042,633.34 | 115.04 million | 564 |
| S C & A, INC. | 0ZTK2 | 92,653,273.01 | 92.65 million | 456 |
| CADMUS GROUP LLC, THE | 1DGA5 | 85,879,630.45 | 85.88 million | 251 |
| CONSOLIDATED SAFETY SERVICES INCORPORATED | 1CJU6 | 83,919,172.75 | 83.92 million | 210 |
Insight
Over the last 5 years, NAICS 541620 obligated $6.13 billion across 49,912 awards, with an average award value of $122,871. Top vendors are moderately concentrated: TETRA TECH, INC. leads with $456.80 million and 3,816 awards, followed by EASTERN RESEARCH GROUP, INC. at $280.62 million and PROJECT ENHANCEMENT CORPORATION at $240.04 million. The remaining listed vendors each account for materially lower shares, indicating a dispersed vendor base beyond the top two contractors.
Annual Trend
SELECT
year,
total_obligated,
award_count,
formatReadableQuantity(total_obligated) AS total_obligated_readable
FROM
(
SELECT
toYear(parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate)) AS year,
sum(content__award__dollarValues__obligatedAmount) AS total_obligated,
count() AS award_count
FROM fpds.data
WHERE
contract_type = 1
AND content__award__productOrServiceInformation__principalNAICSCode = '541620'
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) >= toStartOfYear(now()) - INTERVAL 5 YEAR
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) < toStartOfYear(now())
GROUP BY year
)
ORDER BY year DESC| Year | Total Obligated | Readable | Award Actions |
|---|---|---|---|
| 2025 | 1,091,868,594.75 | 1.09 billion | 9,105 |
| 2024 | 1,421,196,252.12 | 1.42 billion | 10,167 |
| 2023 | 1,412,700,460.15 | 1.41 billion | 10,472 |
| 2022 | 1,174,354,414.79 | 1.17 billion | 9,890 |
| 2021 | 1,032,631,208.76 | 1.03 billion | 10,278 |
Insight
Over the last 5 years, NAICS 541620 obligations totaled $6.13 billion across 49,912 awards, with an average award value of $122,871. Funding was relatively steady year to year, ranging from $1.03 billion in 2021 to a peak of $1.42 billion in 2024. Obligations increased from 2021 through 2024, then declined to $1.09 billion in 2025; award counts followed a similar pattern, remaining near 9,000 to 10,500 annually.
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