Company lists · Data refreshed October 2026
Top 17 Environmental treatment engineering firms based in Indianapolis, United States
RevenueBase identified 32 company matches for environmental treatment engineering firms associated with Indianapolis, United States as of October 2026 and tracks 2,068 professional contacts across them, including 540 with verified work emails. Across the United States, Houston is the largest hub for this category (85 companies); Indianapolis has 32.
This list covers company matches for environmental treatment engineering firms associated with Indianapolis, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 12, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 17 largest environmental treatment engineering firms based in Indianapolis, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 198 contacts → | ||||
Exact match “Since its beginning in 1995, Patriot has built its reputation on serving the needs of the growing development and redevelopment community.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 2 | 194 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 3 | 115 contacts → | ||||
Exact match “Wessler Engineering is a civil and environmental engineering firm, specializing in wastewater, drinking water, and stormwater projects, providing services ranging from master…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 4 | 57 contacts → | ||||
Exact match “HIS Constructors, Inc.(HIS) is a civil construction and environmental remediation company based in Indianapolis, Indiana.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 5 | 55 contacts → | ||||
Exact match “Metric Environmental, LLC is a DBE/MBE environmental consulting firm headquartered in Indianapolis, Indiana with additional offices in Gary, Indiana, Cincinnati, Ohio and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 6 | 54 contacts → | ||||
Exact match “TRS Group, a Parsons company, is an environmental contractor that rapidly remediates sites using proven in-situ thermal technologies.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 7 | 46 contacts → | ||||
Exact match “Summit Environmental Services LLC, based out of Indianapolis, IN, is a nationwide environmental contracting and specialty civil construction services company.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 8 | 45 contacts → | ||||
Exact match “Heritage Environmental Services (Heritage) is a privately held environmental services firm with 50 years of experience.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 9 | 43 contacts → | ||||
Exact match “Founded in 1996 as an Environmental Investigation and Remediation company, SESCO Group (SESCO) has established a reputation for excellence in providing environmental consulting…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 10 | 33 contacts → | ||||
Exact match “We’re a national full-service environmental consulting firm solving complex environmental issues.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 11 | 20 contacts → | ||||
Exact match “IWM Consulting is an environmental consulting firm aimed at helping our clients to maximize their assets and mitigate the risks associated with site utilization and environmental…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 12 | 19 contacts → | ||||
Exact match “Astbury’s unique approach provides its clients with the highest level of expertise available as efficiently, economically, and reliably as possible.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 13 | 18 contacts → | ||||
Exact match “Founded in 1995, Mundell & Associates, Inc.(Mundell) is an earth and environmental services consulting company providing quantitative site characterization and remedial services…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 14 | 14 contacts → | ||||
Exact match “In 1994, our founders wanted to change the way field services for consultants and engineers was performed.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 15 | 8 contacts → | ||||
Exact match “Alliance Environmental Group, Inc.(Alliance) is a woman-owned environmental consulting company staffed with professionals utilizing a multi-disciplined approach in providing…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 16 | 7 contacts → | ||||
Exact match “A Leader In The Environmental Abatement Industry Since 1991 - Environmental Assurance Company, Inc.(EACI) is an experienced, qualified, full-service environmental contracting…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 17 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “environmental treatment engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 17 of 32 environmental treatment engineering firms based in Indianapolis, United States
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Environmental treatment engineering firms based in Indianapolis, United States at a glance
As of Oct 12, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Indianapolis, so it is reported there. Company counts and contact totals on this page are exact for Indianapolis, over 32 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Indianapolis, United States whose business descriptions match “environmental treatment engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 540 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 12, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Environmental treatment engineering firms by metro in the United States
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental treatment engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many environmental treatment engineering firms are there based in Indianapolis, United States?
RevenueBase identified 32 company matches for environmental treatment engineering firms associated with Indianapolis, United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Patriot Engineering And Environmental, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United States has the most environmental treatment engineering firms?
Houston leads the United States with 85 company records, followed by Tampa (35) and Indianapolis (32).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 540 professional contacts with verified work emails tracked across these 32 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 12, 2026.
Ready to reach these companies? Verified emails and direct dials for all 32 environmental treatment engineering firms based in Indianapolis, United States. Start with a free account, no credit card.
Download this list →Related lists
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
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- Lists A-Z
- New lists
- Environmental treatment engineering firms based in Belo Horizonte, Brazil
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Company intelligence · public preview
Top 17 environmental treatment engineering firms based in Indianapolis, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 32 matching company records for environmental treatment engineering firms based in Indianapolis, United States, with 2,068 tracked contacts and 540 verified work emails.
This public preview shows 17 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 17 environmental treatment engineering firms based in Indianapolis, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Patriot Engineering And Environmental, INCpatrioteng.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 198 contacts → |
“Since its beginning in 1995, Patriot has built its reputation on serving the needs of the growing development and redevelopment community.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  August Mack Environmental, INCaugustmack.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 194 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 3 |  Wessler Engineeringwesslerengineering.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 115 contacts → |
“Wessler Engineering is a civil and environmental engineering firm, specializing in wastewater, drinking water, and stormwater projects, providing services ranging from master…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  HIS Constructors, INChisconstructors.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 57 contacts → |
“HIS Constructors, Inc.(HIS) is a civil construction and environmental remediation company based in Indianapolis, Indiana.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Metric Environmental, LLCmetricenv.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 55 contacts → |
“Metric Environmental, LLC is a DBE/MBE environmental consulting firm headquartered in Indianapolis, Indiana with additional offices in Gary, Indiana, Cincinnati, Ohio and…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  TRS Group, A Parsons Companyparsons.comHQ: Indianapolis, IN, United StatesReported employees: Not recorded | Indianapolis, IN, United States | Not recorded | Exact match | 54 contacts → |
“TRS Group, a Parsons company, is an environmental contractor that rapidly remediates sites using proven in-situ thermal technologies.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Summit Environmental Services, LLCsummit-env.netHQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 46 contacts → |
“Summit Environmental Services LLC, based out of Indianapolis, IN, is a nationwide environmental contracting and specialty civil construction services company.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Heritage Environmental Servicesheritage-enviro.com HQ: Indianapolis, IN, United StatesReported employees: 1,001-5,000 | Indianapolis, IN, United States | 1,001-5,000 | Exact match | 45 contacts → |
“Heritage Environmental Services (Heritage) is a privately held environmental services firm with 50 years of experience.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Sesco Groupsescogroup.comHQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 43 contacts → |
“Founded in 1996 as an Environmental Investigation and Remediation company, SESCO Group (SESCO) has established a reputation for excellence in providing environmental consulting…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Enviroforensicsenviroforensics.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 33 contacts → |
“We’re a national full-service environmental consulting firm solving complex environmental issues.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  IWM Consulting Groupiwmconsult.comHQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 20 contacts → |
“IWM Consulting is an environmental consulting firm aimed at helping our clients to maximize their assets and mitigate the risks associated with site utilization and environmental…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Astbury Water Technology, INCastburygroup.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 19 contacts → |
“Astbury’s unique approach provides its clients with the highest level of expertise available as efficiently, economically, and reliably as possible.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Mundell & Associates, INCmundellassociates.comHQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 18 contacts → |
“Founded in 1995, Mundell & Associates, Inc.(Mundell) is an earth and environmental services consulting company providing quantitative site characterization and remedial services…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Environmental Field Services, INCenvfield.comHQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 14 contacts → |
“In 1994, our founders wanted to change the way field services for consultants and engineers was performed.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Alliance Environmental Group, INCaegindy.comHQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 8 contacts → |
“Alliance Environmental Group, Inc.(Alliance) is a woman-owned environmental consulting company staffed with professionals utilizing a multi-disciplined approach in providing…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Environmental Assurance Co., Inc. Eacieaciusa.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 7 contacts → |
“A Leader In The Environmental Abatement Industry Since 1991 - Environmental Assurance Company, Inc.(EACI) is an experienced, qualified, full-service environmental contracting…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Gwinnup's Restoration & Environmental Servicegwinnupsrestoration.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 17 of 32 company matches
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Environmental treatment engineering firms: dataset insights
October 12, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
32 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Indianapolis, so it is reported there. Company counts and contact totals on this page are exact for Indianapolis, over 32 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 12, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Environmental treatment engineering firms by metro in the United States
Questions about this company list
What does Exact match mean for environmental treatment engineering firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many environmental treatment engineering firms did RevenueBase find based in Indianapolis, United States?
The saved snapshot records 32 matching company records, 2,068 tracked contacts and 540 verified emails. The public preview displays 17 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 12, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Environmental treatment engineering firms by geography
- Environmental treatment engineering firms based in Belo Horizonte, Brazil
- Environmental treatment engineering firms based in Campinas, Brazil
- Environmental treatment engineering firms based in Curitiba, Brazil
- Environmental treatment engineering firms based in Rio De Janeiro, Brazil
- Environmental treatment engineering firms based in Sao Paulo, Brazil
- Environmental treatment engineering firms based in Calgary, Canada
- Environmental treatment engineering firms based in Edmonton, Canada
- Environmental treatment engineering firms based in Santiago, Chile
- Environmental treatment engineering firms based in Ahmedabad, India
- Environmental treatment engineering firms based in Bangalore, India
- Environmental treatment engineering firms based in Chennai, India
- Environmental treatment engineering firms based in Gurgaon, India
Cite this list
RevenueBase Data Team. Top 17 environmental treatment engineering firms based in Indianapolis, United States. Snapshot: October 12, 2026. https://revenuebase.ai/companies/environmental-treatment-engineering-firms/united-states/indianapolis.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Environmental treatment engineering firms based in Belo Horizonte, Brazil
- Environmental treatment engineering firms based in Campinas, Brazil
- Environmental treatment engineering firms based in Curitiba, Brazil
- Environmental treatment engineering firms based in Rio De Janeiro, Brazil
- Environmental treatment engineering firms based in Sao Paulo, Brazil
- Environmental treatment engineering firms based in Calgary, Canada
Company intelligence · public preview
Top 17 environmental treatment engineering firms based in Indianapolis, United States
RevenueBase records 32 matching company records for environmental treatment engineering firms based in Indianapolis, United States, with 2,068 tracked contacts and 540 verified work emails.
This public preview shows 17 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 17 environmental treatment engineering firms based in Indianapolis, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Patriot Engineering And Environmental, INCpatrioteng.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 198 contacts → |
“Since its beginning in 1995, Patriot has built its reputation on serving the needs of the growing development and redevelopment community.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | August Mack Environmental, INCaugustmack.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 194 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 3 | Wessler Engineeringwesslerengineering.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 115 contacts → |
“Wessler Engineering is a civil and environmental engineering firm, specializing in wastewater, drinking water, and stormwater projects, providing services ranging from master…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HIS Constructors, INChisconstructors.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 57 contacts → |
“HIS Constructors, Inc.(HIS) is a civil construction and environmental remediation company based in Indianapolis, Indiana.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Metric Environmental, LLCmetricenv.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 55 contacts → |
“Metric Environmental, LLC is a DBE/MBE environmental consulting firm headquartered in Indianapolis, Indiana with additional offices in Gary, Indiana, Cincinnati, Ohio and…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | TRS Group, A Parsons Companyparsons.com HQ: Indianapolis, IN, United StatesReported employees: Not recorded | Indianapolis, IN, United States | Not recorded | Exact match | 54 contacts → |
“TRS Group, a Parsons company, is an environmental contractor that rapidly remediates sites using proven in-situ thermal technologies.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Summit Environmental Services, LLCsummit-env.net HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 46 contacts → |
“Summit Environmental Services LLC, based out of Indianapolis, IN, is a nationwide environmental contracting and specialty civil construction services company.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Heritage Environmental Servicesheritage-enviro.com HQ: Indianapolis, IN, United StatesReported employees: 1,001-5,000 | Indianapolis, IN, United States | 1,001-5,000 | Exact match | 45 contacts → |
“Heritage Environmental Services (Heritage) is a privately held environmental services firm with 50 years of experience.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sesco Groupsescogroup.com HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 43 contacts → |
“Founded in 1996 as an Environmental Investigation and Remediation company, SESCO Group (SESCO) has established a reputation for excellence in providing environmental consulting…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Enviroforensicsenviroforensics.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 33 contacts → |
“We’re a national full-service environmental consulting firm solving complex environmental issues.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | IWM Consulting Groupiwmconsult.com HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 20 contacts → |
“IWM Consulting is an environmental consulting firm aimed at helping our clients to maximize their assets and mitigate the risks associated with site utilization and environmental…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Astbury Water Technology, INCastburygroup.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 19 contacts → |
“Astbury’s unique approach provides its clients with the highest level of expertise available as efficiently, economically, and reliably as possible.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Mundell & Associates, INCmundellassociates.com HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 18 contacts → |
“Founded in 1995, Mundell & Associates, Inc.(Mundell) is an earth and environmental services consulting company providing quantitative site characterization and remedial services…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Environmental Field Services, INCenvfield.com HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 14 contacts → |
“In 1994, our founders wanted to change the way field services for consultants and engineers was performed.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Alliance Environmental Group, INCaegindy.com HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 8 contacts → |
“Alliance Environmental Group, Inc.(Alliance) is a woman-owned environmental consulting company staffed with professionals utilizing a multi-disciplined approach in providing…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Environmental Assurance Co., Inc. Eacieaciusa.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 7 contacts → |
“A Leader In The Environmental Abatement Industry Since 1991 - Environmental Assurance Company, Inc.(EACI) is an experienced, qualified, full-service environmental contracting…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Gwinnup's Restoration & Environmental Servicegwinnupsrestoration.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 17 of 32 company matches
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Environmental treatment engineering firms: dataset insights
October 12, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
32 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Indianapolis, so it is reported there. Company counts and contact totals on this page are exact for Indianapolis, over 32 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 12, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Environmental treatment engineering firms by metro in the United States
Questions about this company list
What does Exact match mean for environmental treatment engineering firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many environmental treatment engineering firms did RevenueBase find based in Indianapolis, United States?
The saved snapshot records 32 matching company records, 2,068 tracked contacts and 540 verified emails. The public preview displays 17 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 12, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 17 environmental treatment engineering firms based in Indianapolis, United States. Snapshot: October 12, 2026. https://revenuebase.ai/companies/environmental-treatment-engineering-firms/united-states/indianapolis.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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