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Calsep

Calsep provides PVT simulation software and services to the oil and gas industry.

Oil and Gas
Headquarters
Kgs Lyngby, DenmarkSource: RevenueBaseRetrieved October 13, 2026
Employee range
11 to 50Source: RevenueBaseRetrieved October 13, 2026
Founded
1982Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
1 supported appearance ↗Source: RevenueBase lists
The company at a glance

What does Calsep do?

Calsep has more than 30 years of experience working with the oil industry on reservoir fluid phase behavior projects. Its projects are applied in reservoir simulation, flow assurance, and process simulation.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

Who it serves

Its courses serve reservoir and process engineers, flow assurance and multi-phase flow metering engineers, laboratory staff, and others who need PVT simulation software in their work.

What the business offers

Services & capabilities.

PVT simulation software

Calsep offers PVT simulation software and EoS modeling studies covering natural gases, gas condensates, near-critical fluids, black oils, and heavy oils.

Source: LinkedIn company description · Retrieved October 13, 2026

Fluid modeling studies

These studies assess all production stages and may cover reservoir injection-gas effects for EOR, and solid precipitation risks and mitigation in wells and pipelines.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

Share your recognition

Embeddable award for your website

BADGE PREVIEWCalsep listed #5 on Oil and gas software consultants, September 28, 2026Open the published source list.
Calsep

#5 Oil and gas software consultants

Snapshot: September 28, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 28, 2026. How the company lists are built.

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