Over the last 10 years, federal awards under NAICS 541620 totaled $11.30 billion across 102,207 award actions, with an average action value of $110,600.60. The Environmental Protection Agency and the Department of the Army accounted for the largest shares of spending, while Tetra Tech, Eastern Research Group, and other recurring contractors led vendor activity.
NAICS Industry
NAICS 541620 Federal Contract Obligations (Last 10 Years)
Federal procurement summary for NAICS 541620 environmental consulting services, covering obligations, award volume, leading agencies, vendors, and annual trends over the last 10 years.
Totals reflect obligated dollars and award counts reported for the analysis window; annual values shown for 2021-2025 are the most recent years in the dataset.
NAICS Code
541620
Industry
ENVIRONMENTAL CONSULTING SERVICES
Total Obligated
11.30 billion
11,304,156,199.32
Award Actions
102,207
Average Action Value
110,600.60
About NAICS 541620 federal contract activity
NAICS 541620, Environmental Consulting Services, recorded 102,207 FPDS awards and 11.30 billion in obligated dollars over the last 10 years, with an average award value of 110,600.6. The volume and dollar totals indicate a large, recurring market for technical environmental support across federal procurement.
Agency demand and leading federal buyers
The Environmental Protection Agency led federal spending in this NAICS with 2.87 billion across 30,614 awards, making it the dominant buyer in the category. The Department of the Army followed with 2.02 billion and 10,145 awards, while the Department of Energy, NOAA, and the Department of the Air Force rounded out the top five, showing demand concentrated in environmental regulation, infrastructure, and mission-support programs.
Vendor concentration and leading contractors
Tetra Tech, Inc. was the largest vendor by obligated dollars at 607.48 million across 5,469 awards, followed by Eastern Research Group, Inc. at 449.04 million and Project Enhancement Corporation at 409.55 million. The top vendors show a mix of high-award-count incumbents and firms with fewer but larger obligations, suggesting both steady task-order work and larger project engagements.
Annual contract trend over the analysis window
Annual obligations remained above 1 billion in each of the most recent five years shown, peaking at 1.42 billion in 2024 after 1.41 billion in 2023. Obligations declined to 1.09 billion in 2025, while award counts also eased from 10,167 in 2024 to 9,127 in 2025, indicating a modest recent contraction after a stronger 2023-2024 period.
How to interpret this page
This page summarizes FPDS obligations classified under NAICS 541620 for the last 10 years and aggregates award counts, obligated dollars, and average award value. Agency and vendor rankings are based on total obligated dollars within the selected NAICS and analysis window; the annual trend reflects fiscal-year obligations as reported in the source dataset.
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 10 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 | 2,874,693,350.68 | 2.87 billion | 30,614 |
| 2100 | DEPT OF THE ARMY | 2,019,518,410.34 | 2.02 billion | 10,145 |
| 8900 | ENERGY, DEPARTMENT OF | 875,095,241.70 | 875.10 million | 3,550 |
| 1330 | NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION | 743,184,572.35 | 743.18 million | 3,261 |
| 5700 | DEPT OF THE AIR FORCE | 559,425,120.10 | 559.43 million | 2,774 |
| 1422 | BUREAU OF LAND MANAGEMENT | 461,087,958.11 | 461.09 million | 8,050 |
| 1700 | DEPT OF THE NAVY | 347,409,172.73 | 347.41 million | 3,167 |
| 4732 | FEDERAL ACQUISITION SERVICE | 325,782,826.86 | 325.78 million | 977 |
| 7200 | AGENCY FOR INTERNATIONAL DEVELOPMENT | 285,824,062.39 | 285.82 million | 249 |
| 8000 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | 280,148,776.27 | 280.15 million | 1,885 |
Insight
Over the last 10 years, NAICS 541620 has obligated $11.30 billion across 102,207 awards, with obligations concentrated among a small set of agencies. EPA is the largest buyer at $2.87 billion, followed by the Department of the Army at $2.02 billion; together they account for about 43% of total obligations in this NAICS. The next tier is materially lower, led by DOE, NOAA, and the Air Force, indicating a broad but top-heavy distribution of environmental consulting demand across civilian and defense 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 10 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. | 078E8 | 607,481,035.70 | 607.48 million | 5,469 |
| EASTERN RESEARCH GROUP, INC. | 00GP8 | 449,039,159.41 | 449.04 million | 4,607 |
| PROJECT ENHANCEMENT CORPORATION | 1SMK8 | 409,550,509.00 | 409.55 million | 546 |
| WESTON SOLUTIONS, INC. | 2M222 | 312,923,257.53 | 312.92 million | 2,272 |
| BOSTON GOVERNMENT SERVICES, LLC | 4WTQ0 | 186,317,702.10 | 186.32 million | 863 |
| ENVIRONMENTAL INCENTIVES, LLC | 5DCQ8 | 154,844,408.03 | 154.84 million | 101 |
| ICF INCORPORATED, L.L.C. | 5M571 | 143,711,475.20 | 143.71 million | 1,709 |
| LYNKER TECHNOLOGIES LLC | 56F28 | 137,252,552.07 | 137.25 million | 208 |
| CONSOLIDATED SAFETY SERVICES INCORPORATED | 1CJU6 | 133,292,725.01 | 133.29 million | 438 |
| SOL SOLUTIONS, LLC | 5X2D5 | 126,881,199.60 | 126.88 million | 276 |
Insight
Over the last 10 years, NAICS 541620 has obligated $11.30 billion across 102,207 awards, with an average award value of $110.6K, indicating a high-volume, relatively fragmented market. The top 10 vendors account for a meaningful share of obligation but do not dominate the sector; the largest recipient, TETRA TECH, INC., received $607.48 million across 5,469 awards, while EASTERN RESEARCH GROUP, INC. received $449.04 million across 4,607 awards. The remaining top vendors each range from $126.88 million to $409.55 million, with award counts varying widely, suggesting a mix of frequent small awards and fewer larger-value obligations.
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 10 YEAR
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) < toStartOfYear(now())
GROUP BY year
)
ORDER BY year DESC| Year | Total Obligated | Readable | Award Actions |
|---|---|---|---|
| 2025 | 1,093,465,181.92 | 1.09 billion | 9,127 |
| 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 |
| 2020 | 1,069,481,171.69 | 1.07 billion | 11,121 |
| 2019 | 1,023,828,210.57 | 1.02 billion | 9,494 |
| 2018 | 1,094,518,049.01 | 1.09 billion | 10,124 |
| 2017 | 983,792,038.91 | 983.79 million | 10,496 |
| 2016 | 998,189,211.40 | 998.19 million | 11,038 |
Insight
Over the last 10 years, NAICS 541620 (Environmental Consulting Services) recorded $11.30 billion in obligations across 102,207 awards, with an average award value of about $110.6K. Annual obligations are relatively stable, remaining near the $1.0 billion to $1.4 billion range each year, with a modest increase in 2022–2024 and a lower total in 2025 to date. Award volumes similarly cluster around 9,000 to 11,000 per year, indicating a broad distribution of relatively small awards rather than concentration in a few large actions.
Use FPDS Query for deeper industry analysis
Explore federal procurement data with custom SQL, fast filtering, and deeper industry analysis across agencies, vendors, and annual trends.
Continue from this last 10 years view into full FPDS Query workflows with deeper filtering, custom SQL, saved queries, and broader market comparison.