Company lists · Data refreshed September 2026

Top 25 High performance computing software companies worldwide

RevenueBase identified 371 high performance computing software companies worldwide as of September 2026 and tracks 11,922 professional contacts across them, including 3,419 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers high performance computing software companies worldwide, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for high performance computing software companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
371Companies
11,922Contacts tracked
3,419Verified emails
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The 25 largest high performance computing software companies worldwide

Ranked by team size
Top 25 of 371 high performance computing software companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to high performance computing software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceTroy, MI, United StatesHQ checked Sep 28, 20261,001-5,0003,097 contacts →

Strong evidence

“Altair is a global leader in computational intelligence and provides software and cloud solutions in design and simulation, high-performance computing (HPC), and data analytics.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceBezons, FranceHQ checked Sep 28, 20261,001-5,0002,172 contacts →

Strong evidence

“Bull is a global leader in high-performance computing, artificial intelligence and quantum innovation with the ambition to shape a more responsible digital world through…”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 2026501-1,000405 contacts →

Indirect evidence

“Cray Inc, acquired by Hewlett Packard Enterprise company in 2019.”

Source: RevenueBase Database · checked Sep 28, 2026
4Strong evidenceWest Perth, AustraliaHQ checked Sep 28, 2026201-500314 contacts →

Strong evidence

“DUG is an ASX-listed technology company, headquartered in Australia, that specialises in analytical software development, big-data services and reliable, green, high-performance…”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidencePortsmouth, United KingdomHQ checked Sep 28, 2026201-500239 contacts →

Indirect evidence

“Novatech is the only IT partner that helps you grow with confidence.”

Source: RevenueBase Database · checked Sep 28, 2026
6Strong evidenceFrankfurt Am Main, GermanyHQ checked Sep 28, 202651-200160 contacts →

Strong evidence

“Northern Data Group is a leading provider of full-stack AI and High-Performance Computing (HPC) solutions, leveraging a network of high-density, liquid-cooled, GPU-based…”

Source: RevenueBase Database · checked Sep 28, 2026
7Strong evidenceOxford, United KingdomHQ checked Sep 28, 202651-200154 contacts →

Strong evidence

“nAG has played a leading role in numerical, scientific and high-performance computing for over 5 decades.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceTokyo, JapanHQ checked Sep 28, 2026201-500141 contacts →

Partial evidence

“Fixstars is a software company devoted to "Speed up your Business".”

Source: RevenueBase Database · checked Sep 28, 2026
9Strong evidenceChapeltown, United KingdomHQ checked Sep 28, 202611-50125 contacts →

Strong evidence

“Since 2002, OCF has been supplying Unix and Linux high performance computing solutions to higher education, research and industry throughout the UK & Ireland.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceMontrouge, FranceHQ checked Sep 28, 202651-20075 contacts →

Partial evidence

“Qarnot is redefining the European HPC cloud computing landscape with an intuitive HPCaaS platform.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceCaba, IndiaHQ checked Sep 28, 202611-5066 contacts →

Indirect evidence

“Nos dedicamos a proveer soluciones y equipamiento tecnologico para la industria IT desde hace mas de una década, con especial foco en soluciones customizadas de alto rendimiento…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceAsti, TX, ItalyHQ checked Sep 28, 202611-5061 contacts →

Partial evidence

“NICE, an Amazon company, delivers Cloud and Technical Computing / HPC solutions for companies and institutions.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceLos Altos, CA, United StatesHQ checked Sep 28, 202651-20058 contacts →

Strong evidence

“Simr’s (formerly UberCloud) mission is to make high performance computing (HPC) a reality for every engineer.”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceCollegno, ItalyHQ checked Sep 28, 202611-5048 contacts →

Strong evidence

“Do IT systems è una società focalizzata sui servizi HPC (High Performace Computing), si occupa di tecnologie utilizzate dai computer/cluster per creare sistemi di elaborazione ad…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceNova Gorica, SloveniaHQ checked Sep 28, 202611-5048 contacts →

Indirect evidence

“Motivated and inspired by what's next, Arctur helps it's clients navigate the unknown, drive change and transform their business.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceLake Forest, CA, United StatesHQ checked Sep 28, 202611-5041 contacts →

Indirect evidence

“PSSC Labs designs, builds, and integrates on-premises HPC solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceCampbell, CA, United StatesHQ checked Sep 28, 202651-20039 contacts →

Partial evidence

“IC Manage provides Design & IP Management, Big Data Analytics, and HPC Scale Out I/O & Cloud Bursting software.”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceGaithersburg, MD, United StatesHQ checked Sep 28, 202611-5037 contacts →

Strong evidence

“RedLine Performance Solutions is a world-class provider of high-performance computing (HPC) solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceBengaluru, IndiaHQ checked Sep 28, 202611-5036 contacts →

Strong evidence

“High Performance Computing (HPC) is an area that has constantly pushed for higher processing performance levels to tackle the ever increasing complexities in scientific problems.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceBunkyo, JapanHQ checked Sep 28, 202651-20034 contacts →

Partial evidence

“Prometech Software was established with the goal of becoming the world's leading industry academia collaborative tech company in computational science through the…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceBrno, Czech RepublicHQ checked Sep 28, 202651-20032 contacts →

Indirect evidence

“Jsme česká technologická firma s více než dvacetiletou historií.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceParis, FranceHQ checked Sep 28, 202651-20032 contacts →

Indirect evidence

“Depuis 2010, Alliance Services Plus (AS+) s’adresse à tous les acteurs du Calcul Intensif, de la Data Analytics et de l’IA - Utilisateurs industriels et académiques, opérateurs et…”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceBothell, WA, United StatesHQ checked Sep 28, 2026201-50030 contacts →

Strong evidence

“Silicon Mechanics is one of the world’s largest private providers of high-performance computing, artificial intelligence, and enterprise storage systems.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 28, 202611-5028 contacts →

Indirect evidence

“Founded in 1987, Colfax International is a leading global provider of innovative and expertly engineered workstations, servers, clusters, and storage solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
25Strong evidenceAmsterdam, United StatesHQ checked Sep 28, 202611-5027 contacts →

Strong evidence

“The company has two promises: To our customers: you get high performing software.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 371 high performance computing software companies worldwide

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High performance computing software companies worldwide at a glance

As of Sep 28, 2026
28.7%Verified-email coverage
32.1Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Houston
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
183
11-50
139
51-200
30
201-500
10
501-1,000
1
1,001-5,000
6
5,001-10,000
1
10001+
1

Email recency is reported on each country list linked below.

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 high performance computing software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for high performance computing software companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “high performance computing software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names high performance computing software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among high performance computing software companies, and records with no verified work email.
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 its RevenueBase Smart Search 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, 3,419 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 28, 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.

High performance computing software companies by location

1 lists · largest first

Every High performance computing software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names high performance computing software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many high performance computing software companies are there worldwide?

RevenueBase identified 371 high performance computing software companies worldwide 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?

Altair, headquartered in Troy, tops this list with the largest team on record.

Which country has the most high performance computing software companies?

The United States leads with 110 companies. Every high performance computing software companies list by country and city is linked on this page.

Which city has the most high performance computing software companies?

Houston leads with 6 headquartered companies, followed by San Diego (5) and Albuquerque (4).

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 3,419 verified decision-maker contacts tracked across these 371 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 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 Smart Search, 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.