Company lists · Data refreshed November 2026

Top 17 Plant engineering services based in Indianapolis, United States

RevenueBase identified 32 company matches for plant engineering services associated with Indianapolis, United States as of November 2026 and tracks 799 professional contacts across them, including 415 with verified work emails. Across the United States, Houston is the largest hub for this category (405 companies); Indianapolis has 32.

This list covers company matches for plant engineering services 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 November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
32Companies
799Contacts tracked
415Verified emails
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The 17 largest plant engineering services based in Indianapolis, United States

Ranked by team size
Top 17 of 32 company matches for plant engineering services based in Indianapolis, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202651-200141 contacts →

Exact match

“PACIV partners with life sciences, utilities, and manufacturing organizations to design, build, and automate efficient operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5073 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5069 contacts →

Exact match

“R.E.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“Grand Industrial is a privately-held industrial maintenance and contracting company that can provide a wide variety of services to our clients in the food processing, product…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5054 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“CIRCLE DESIGN GROUP is a successful MEP/civil consulting engineering firm serving our clients since 1982.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Founded in 1959, LYNCH, HARRISON & BRUMLEVE, INC.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“From system planning to line and substation design to the Smart Grid, Alpha Engineering has the capabilities and expertise to meet your every power engineering need.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Peine Engineering has many years,(71 and still counting) of experience on industrial, medical, institutional and commercial projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Sims-Durkin Associates Engineering Company comprises of a general engineering private practice established in 1987, with an emphasis on electrical, mechanical, and plumbing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“AECME specializes in mechanical, electrical, and plumbing engineering design services for the A/E/C industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“DCG is a turnkey self-performing contractor specializing in industrial ventilation and sheet metal and non-structural steel fabrication and installation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Our mission is to transform ideas into innovative, practical solutions, providing top-tier engineering consulting and product design services that drive your business forward.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-501 contacts →

Exact match

“Indianapolis Industrial Contractor service offering industrial project consulting, management, and design build.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 17 of 32 plant engineering services based in Indianapolis, United States

See the full list, filter by size, metro and specialty, and access 415 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Plant engineering services based in Indianapolis, United States at a glance

As of Nov 6, 2026
51.9%Verified-email coverage
25.0Average contacts per company
11-50Median size (employees)
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
6
11-50
22
51-200
3
201-500
1

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 “plant engineering services” 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 415 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 November 6, 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.

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 “plant engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many plant engineering services are there based in Indianapolis, United States?

RevenueBase identified 32 company matches for plant engineering services associated with Indianapolis, United States as of November 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?

PACIV 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 plant engineering services?

Houston leads the United States with 405 company records, followed by New York (110) and Austin (82). Indianapolis has 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 415 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 November 6, 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.