Company lists · Data refreshed October 2026

Top 25 Hvac design engineering firms based in Austin, United States

Name: Hvac design engineering firms based in Austin, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 14, 2026 68 companies tracked

RevenueBase identified 68 company matches for hvac design engineering firms associated with Austin, United States as of October 2026 and tracks 1,071 professional contacts across them, including 535 with verified work emails. Across the United States, New York is the largest hub for this category (182 companies); Austin has 68.

This list covers company matches for hvac design engineering firms associated with Austin, 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 14, 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 Oct 14, 2026 How this list was built

68Companies

1,071Contacts tracked

535Verified emails

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The 25 largest hvac design engineering firms based in Austin, United States

Ranked by team size

Top 25 of 68 company matches for hvac design engineering firms based in Austin, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	O'connell Robertson	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	51-200	167 contacts →
	Exact match “O’Connell Robertson is a full-service architecture, engineering and interior design firm whose mission-driven approach creates education and healthcare environments that enrich…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
2	EEA Consulting Engineers	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	51-200	151 contacts →
	Exact match “EEA Consulting Engineers is a full-service mechanical, electrical and plumbing (MEP)consulting firm serving new and existing facilities in all market sectors.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
3	MEP Engineering, INC	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	83 contacts →
	Exact match “Over the course of our firm’s 28-year history, MEP has focused on cultivating a team which is friendly, approachable, and responsive.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
4	Firstcall Group	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	501-1,000	75 contacts →
	Exact match “FirstCall is a commercial and industrial HVAC, building controls, electrical, and plumbing services company.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
5	Team Services	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	51-200	43 contacts →
	Exact match “Founded by Technicians Team Services was founded in 2011 by experienced technicians, on the belief that Austin businesses deserve knowledgeable service, honest communication, and…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
6	Martinez Moore Engineers, LLC	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	33 contacts →
	Exact match “Martinez Moore Engineers, LLC is a Texas based full multi-discipline engineering firm with offices in Austin, Houston and Dallas.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
7	BIG RED DOG Engineering Consulting	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	501-1,000	31 contacts →
	Exact match “BIG RED DOG (BRD) is a Texas-based engineering firm that specializes in Civil, MEP, Structural, Traffic, and Transportation Engineering for real estate, infrastructure, and…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
8	Stan's Heating, Air, Plumbing & Electrical	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	51-200	28 contacts →
	Exact match “Stan’s Heating, Air, Plumbing & Electrical has been a trusted name in home services in the Austin, Texas area since 1954.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
9	Positive Energy	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	26 contacts →
	Exact match “Positive Energy built its reputation and business on offering high performance MEP engineering services to the residential architecture market with a focus on health, comfort, and…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
10	TOM Green & Company Engineers, INC	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	25 contacts →
	Exact match “We have more than three decades of experience in MEP design, consulting, commissioning, planning and analysis.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
11	BAY & Associates, INC	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	22 contacts →
	Exact match “We are engineers who design mechanical, electrical, and plumbing systems with a focus on sustainability and energy efficiency.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
12	Analemma Group	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	20 contacts →
	Exact match “Analemma Group delivers energy-efficient MEP engineering services tailored to the needs of architects, engineers, and building owners.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
13	Aptus Engineering	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	17 contacts →
	Exact match “APTUS Engineering is a full service Mechanical, Electrical and Plumbing (MEP) engineering consulting company specializing in Mechanical, Electrical & Plumbing Engineering…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
14	Waterloo MEP Engineering	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	16 contacts →
	Exact match “Waterloo\|MEP Engineering, LLC is a forward-thinking mechanical, electrical, and plumbing engineering firm focused on delivering superior design solutions with attentive client…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
15	Climate Solutions	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	1-10	15 contacts →
	Exact match “Climate Solutions is a premier provider of heating, ventilation and air conditioning (HVAC), refrigeration and facility services for the commercial/light industrial and…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
16	Architectural Wall Systems, INC	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	10 contacts →
	Exact match “In January 1986, Kevin McClintick, P.E.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
17	Arete Engineering	Exact match	Austin, United StatesHQ recorded Oct 14, 2026	1-10	9 contacts →
	Exact match “Arete Engineering is a specialized engineering firm based in Austin, Texas, delivering high-quality, value-added solutions that exceed industry standards.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
18	Pickett Kelm And Associates INC	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	1-10	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19	Larsa Engineering	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	9 contacts →
	Exact match “Larsa Engineering is a leading provider of engineering analysis and design for all types of structures and construction materials, including steel, concrete, timber, masonry…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20	Hill Country PRO Hvac, DBA Gemini Mechanical, Austin Texas	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	8 contacts →
	Exact match “Hill Country Pro HVAC, DBA Gemini Mechanical is proud to be the Preferred HVAC Services Provider of Texas Athletics.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
21	Nichols Engineering LLC	Exact match	Austin, United StatesHQ recorded Oct 14, 2026	11-50	8 contacts →
	Exact match “Nichols Engineering, LLC provides hands-on MEP Consulting Engineering serving clients across Northern America.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22	Smart AIR Cooling And Heating	Exact match	Austin, United StatesHQ recorded Oct 14, 2026	11-50	8 contacts →
	Exact match “Smart Air Cooling and Heating is a professional Texas-based HVAC contractor.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
23	GNB Partners LLC	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	1-10	7 contacts →
	Exact match “GNB Partners is a small, nimble design services firm that specializes in full system design, including electrical, mechanical, and software.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
24	AC Pros Hvac, LLC	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	1-10	7 contacts →
	Exact match “AC Pros HVAC is your professional Austin Air Conditioning and heating company.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25	Gonzalez Shah Smith, INC	Exact match	Austin, TX, United StatesHQ recorded Oct 14, 2026	11-50	5 contacts →
	Exact match “We are an engineering consulting firm that provides professional engineering services in sustainable design, master planning, construction management and commissioning of…” Recorded in the RevenueBase company graph · Oct 14, 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 “hvac design 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 25 of 68 hvac design engineering firms based in Austin, United States

See the full list, filter by size, metro and specialty, and access 535 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hvac design engineering firms based in Austin, United States at a glance

As of Oct 14, 2026

50.0%Verified-email coverage

15.8Average contacts per company

11-50Median size (employees)

Oct 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Austin, so it is reported there. Company counts and contact totals on this page are exact for Austin, over 68 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 Austin, United States whose business descriptions match “hvac design 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 535 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 14, 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.

Hvac design 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 “hvac design engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac design engineering firms are there based in Austin, United States?

RevenueBase identified 68 company matches for hvac design engineering firms associated with Austin, 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?

O'connell Robertson 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 hvac design engineering firms?

New York leads the United States with 182 company records, followed by Houston (152) and Miami (74). Austin has 68.

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 535 professional contacts with verified work emails tracked across these 68 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 14, 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.