Company lists · Data refreshed September 2026

Top 20 Infrastructure consulting firms based in Indianapolis, United States

RevenueBase identified 37 infrastructure consulting firms headquartered in Indianapolis, United States as of September 2026 and tracks 1,307 professional contacts across them, including 579 with verified work emails. New York is the largest hub.

This list covers infrastructure consulting firms headquartered in Indianapolis, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
37Companies
1,307Contacts tracked
579Verified emails
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The 20 largest infrastructure consulting firms based in Indianapolis, United States

Ranked by team size
Top 20 of 37 infrastructure consulting firms based in Indianapolis, United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1Indianapolis, IN, United StatesHQ checked Sep 3, 20265,001-10,000316

Infrastructure & Energy Alternatives (IEA), a MasTec company, was formed in 2011 and began building an integrated portfolio of energy and infrastructure construction companies.”

Source: company website · checked Sep 3, 2026
2
Engaging Solutions, LLCPartial evidence
Indianapolis, United StatesHQ checked Sep 3, 202651-200100

“Engaging Solutions is a multi-faceted management consulting firm with the personnel and resources to accomplish everything from high level management and auditing to ground-level…”

Source: company website · checked Sep 3, 2026
3Indianapolis, IN, United StatesHQ checked Sep 3, 202651-20092

“United Consulting provides quality service their clients can depend on.”

Source: company website · checked Sep 3, 2026
4
USI Consultants, INCIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 202651-20087

“Founded in 1976, USI Consultants, Inc.”

Source: company website · checked Sep 3, 2026
5Indianapolis, IN, United StatesHQ checked Sep 3, 202611-5072

“Applied Engineering Services is an Indianapolis-based consulting engineering firm providing mechanical, electrical, and instrumentation engineering services.”

Source: company website · checked Sep 3, 2026
6
R.E. Dimond And AssociatesIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 202611-5066

“R.E.”

Source: company website · checked Sep 3, 2026
7
Tlf, INCIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 202611-5048

“TLF is a forty person engineering firm located on the northwest side of Indianapolis, Indiana, that specializes in Project Management, Structural Engineering, Site Development…”

Source: company website · checked Sep 3, 2026
8Indianapolis, IN, United StatesHQ checked Sep 3, 202651-20044

“Stemming from water resources, our passion to enhance and preserve our environment has deepened through exciting and diverse projects.”

Source: company website · checked Sep 3, 2026
9
Resolution Group INCIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 202611-5041

“Resolution Group, Inc (RGI) is an Indianapolis based Disadvantaged Business Enterprise (DBE) and Woman-Owned Business Enterprise (WBE) civil engineering firm founded in 2008…”

Source: company website · checked Sep 3, 2026
10
Fink Roberts & Petrie, INCIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 202611-5031

“FRP has long been known as a premiere structural engineering firm by architects, facility owners and contractors.”

Source: company website · checked Sep 3, 2026
11
DB Engineering, LLCIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 20261-1019

“DB Engineering, LLC was founded in November of 2008 by Ms.”

Source: company website · checked Sep 3, 2026
12
Cmid, INCPartial evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 202611-5018

Consulting Management Inspection Design, Inc.(CMID) is a minority owned full service architectural & engineering consulting firm.”

Source: company website · checked Sep 3, 2026
13Indianapolis, IN, United StatesHQ checked Sep 3, 202611-5016

“Established in 1994 in Indianapolis, Silver Creek Engineering, Inc.”

Source: company website · checked Sep 3, 2026
14
Loftus Engineering, INCPartial evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 202611-5014

“Loftus Engineering is an Indianapolis-based WBE, full service mechanical and electrical consulting engineering firm, specializing in unique, complex and sustainable building…”

Source: company website · checked Sep 3, 2026
15
Avenew, INCIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 20261-1011

“At Avenew, we're dedicated to helping communities grow and thrive.”

Source: company website · checked Sep 3, 2026
16
Landworx EngineeringPartial evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 20261-109

Consulting Civil Engineering company specializing in private and public redevelopment projects.”

Source: company website · checked Sep 3, 2026
17
Whitaker EngineeringIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 20261-108

“Professional services are important to clients for a number of reasons.”

Source: company website · checked Sep 3, 2026
18
First Group Engineering INCIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 202611-507

“First Group Engineering Inc is a civil engineering company located in Indianapolis, Indiana, serving INDOT and Indiana communities as well as private clients on transportation and…”

Source: company website · checked Sep 3, 2026
19
Roger Ward Engineering INCIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 3, 202611-504

“Roger Ward Engineering Inc is a Civil Engineering company located at Carrollton Ave.”

Source: company website · checked Sep 3, 2026
20Indianapolis, IN, United StatesHQ checked Sep 3, 20261-101
Source: company website · checked Sep 3, 2026

Showing 20 of 37 infrastructure consulting firms based in Indianapolis, United States

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Infrastructure consulting firms based in Indianapolis, United States at a glance

As of Sep 3, 2026
11-50Median size (employees)
New YorkLargest hub · 306 HQs
Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
12
11-50
15
51-200
8
201-500
1
5,001-10,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Indianapolis, over 37 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among infrastructure consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

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
Companies headquartered in Indianapolis, United States whose own description of what they do matches “infrastructure consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among infrastructure consulting firms, and records with no verified work email. Companies headquartered outside Indianapolis are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 579 across the full list. 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 September 3, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Infrastructure consulting firms by metro in the United States

Frequently asked

How many infrastructure consulting firms are there based in Indianapolis, United States?

RevenueBase identified 37 infrastructure consulting firms headquartered in Indianapolis, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Infrastructure And Energy Alternatives, Inc. IEA , A Mastec Company, headquartered in Indianapolis, tops this list with the largest team on record.

Which city has the most infrastructure consulting firms?

New York leads with 306 headquartered companies, followed by Houston (293) and Washington (158).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 579 verified decision-maker contacts tracked across these 37 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 2026.

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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.