Company lists · Data refreshed November 2026

Top 11 Load calculation specialists based in the United States

RevenueBase identified 35 company matches for load calculation specialists associated with the United States as of November 2026 and tracks 190 professional contacts across them, including 40 with verified work emails. Alachua is the largest hub.

This list covers company matches for load calculation specialists associated with the 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
35Companies
190Contacts tracked
40Verified emails
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The 11 largest load calculation specialists based in the United States

Ranked by team size
Top 11 of 35 company matches for load calculation specialists based in the 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 matchNew York, NY, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“At Tower, we know the importance of getting your HVAC system right.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMendon, MA, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPortland, ME, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

“We're working to promote the adoption of heat pump systems among American homeowners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLexington, MA, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“The all-in-one HVAC software calculates loads for accurate size and system design to maximize comfort and efficiency in performance and installation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDecatur, GA, United StatesHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Energy Vanguard's ultimate goal is to make homes better for the people who live in them and to reduce the negative impacts of buildings on the Earth.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNorth Venice, FL, United StatesHQ recorded Nov 6, 202611-506 contacts →

Exact match

“CALCS-PLUS has been providing fast & accurate load and energy calculations, as well as exceptional duct/system design services for commercial and residential HVAC projects since…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEstero, FL, United StatesHQ recorded Nov 6, 202611-504 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSan Antonio, TX, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“We are here to provide Manual J, Manual S, and Manual D services to HVAC contractors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLancaster, KY, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“We proudly offer affordable quality HVAC designs and permitting documents by knowledgeable and experienced designers who maintain industry knowledge and certifications through…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWest Palm Beach, United StatesHQ recorded Nov 6, 20261-101 contacts →

Exact match

“I direct and mentor an elite team of HVAC design specialists.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLake Orion, MI, United StatesHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Michigan Energy provides energy code compliance, energy audits and mechanical design.”

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

Showing 11 of 35 load calculation specialists based in the United States

See the full list, filter by size, metro and specialty, and access 40 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Load calculation specialists based in the United States at a glance

As of Nov 6, 2026
21.1%Verified-email coverage
5.4Average contacts per company
1-10Median size (employees)
2.9%Largest-city concentration · Alachua
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
6
51-200
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 35 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 the United States whose business descriptions match “load calculation specialists” 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 40 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 “load calculation specialists”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many load calculation specialists are there based in the United States?

RevenueBase identified 35 company matches for load calculation specialists associated with the 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?

Tower Enterprises tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most load calculation specialists?

Alachua leads with 1 company records, followed by Belford (1) and Boiling Springs (1).

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 40 professional contacts with verified work emails tracked across these 35 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.