Company lists · Data refreshed September 2026

Top 25 Load calculation software companies based in the United States

RevenueBase identified 73 company matches for load calculation software companies associated with the United States as of September 2026 and tracks 1,068 professional contacts across them, including 344 with verified work emails. Austin is the largest hub.

This list covers company matches for load calculation software companies 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 September 28, 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 Sep 28, 2026 How this list was built
73Companies
1,068Contacts tracked
344Verified emails
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The 25 largest load calculation software companies based in the United States

Ranked by team size
Top 25 of 73 company matches for load calculation software companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202610001+407 contacts →

Exact match

“Autodesk makes software for people who design and make our world.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchWalnut Creek, CA, United StatesHQ recorded Sep 28, 202651-200218 contacts →

Exact match

“Founded in 1975, Computers and Structures, Inc.(CSI) is recognized globally as the pioneering leader in software tools for structural and earthquake engineering.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchFoothill Ranch, CA, United StatesHQ recorded Sep 28, 202611-5075 contacts →

Exact match

“RISA delivers a suite of integrated software design solutions and technical support services that allow structural engineers to innovate with confidence, secure in the safety and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchRedondo Beach, CA, United StatesHQ recorded Sep 28, 202611-5031 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchMelville, NY, United StatesHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“LARSA 4D is the namesake software of LARSA, Inc.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchLos Angeles, CA, United StatesHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“Nous Engineering is an innovative Structural Engineering firm based in Los Angeles.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026501-1,00020 contacts →

Exact match

“MIDASoft Inc.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchPortland, OR, United StatesHQ recorded Sep 28, 2026n/a15 contacts →

Exact match

“EasyPower is a leading software used by electrical engineers and consultants for power system design and management.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchMissoula, MT, United StatesHQ recorded Sep 28, 20261-1014 contacts →

Exact match

“Since 1982, ENERCALC has produced structural engineering analysis and design software for structural and civil engineers.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchHadley, MA, United StatesHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“Qnect delivers innovative and sustainable solutions for the construction industry to build a better future.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchMadison, WI, United StatesHQ recorded Sep 28, 202611-5013 contacts →

Exact match

“Power Line Systems develops, sells and supports the Industry Standard PLS-CADD, PLS-POLE, and TOWER software for the design and analysis of overhead electric power transmission…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchOakland, CA, United StatesHQ recorded Sep 28, 20261-1013 contacts →

Exact match

“BuildSite designs and develops software for construction professionals.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchSkokie, IL, United StatesHQ recorded Sep 28, 202611-5012 contacts →

Exact match

“StructurePoint is a software technology group dedicated to the development and maintenance of an engineering software suite for the analysis and design of reinforced concrete…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchPetersburg, TN, United StatesHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“HRS Systems has been a pioneer in hydraulic calculation software since 1976 and still provides the most accurate solutions in hydraulic calculation for the fire protection…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchEmeryville, CA, United StatesHQ recorded Sep 28, 20261-108 contacts →

Exact match

“Earthquake Solutions provides structural and earthquake engineering consulting services and develops state-of-the-art software worldwide.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchLexington, MA, United StatesHQ recorded Sep 28, 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 · Sep 28, 2026 · View company records in RevenueBase
17Exact matchWalnut Creek, CA, United StatesHQ recorded Sep 28, 20261-106 contacts →

Exact match

“CalcBook is innovative software that streamlines the production of transparent, professional structural engineering calculations.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchMilwaukee, WI, United StatesHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Wolf Star Technologies specializes in globally proven, first-to-market software solutions that solve fundamental Product Development problems.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchBroken Arrow, OK, United StatesHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Meca Enterprises provides structural engineering services and specialized software that help engineers design safer, more efficient industrial structures.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchNorth Venice, FL, United StatesHQ recorded Sep 28, 202611-505 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 · Sep 28, 2026 · View company records in RevenueBase
21Exact matchMinneapolis, MN, United StatesHQ recorded Sep 28, 202611-505 contacts →

Exact match

“ITASCA is a global, employee-owned organization that is grounded in 40+ years of innovations by trailblazing software developers and engineers alike.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchDelray Beach, FL, United StatesHQ recorded Sep 28, 20261-105 contacts →

Exact match

“PowerCalc™ is the 1st SaaS electrical engineering software for buildings.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchEstero, FL, United StatesHQ recorded Sep 28, 202611-504 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchJacksonville, FL, United StatesHQ recorded Sep 28, 20261-104 contacts →

Exact match

“Structures International, LLC (SI) is a professional structural engineering firm located in Jacksonville, Florida.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchWilmette, IL, United StatesHQ recorded Sep 28, 20261-104 contacts →

Exact match

“Cusatis Computational Services (CCS) Inc.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 73 load calculation software companies based in the United States

See the full list, filter by size, metro and specialty, and access 344 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Load calculation software companies based in the United States at a glance

As of Sep 28, 2026
32.2%Verified-email coverage
14.6Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · Austin
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
17
51-200
3
501-1,000
1
5,001-10,000
1
10001+
1

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 73 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 software companies” 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 344 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 September 28, 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 software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 73 company matches for load calculation software companies associated with the United States as of September 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?

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

Which city has the most load calculation software companies?

Austin leads with 3 company records, followed by Albany (2) and Lexington (2).

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 344 professional contacts with verified work emails tracked across these 73 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 September 28, 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.