TESIS Ltd.

What TESIS Ltd. does

TESIS Ltd. (ООО «Тесис») is a privately held Russian engineering software company founded in 1994 and headquartered in Moscow. It develops, distributes, and implements computer-aided engineering (CAE) software focused primarily on computational fluid dynamics (CFD) and related multidisciplinary simulation, targeting industrial enterprises in aviation, turbomachinery, shipbuilding, and nuclear energy, as well as research institutes and universities. The company's portfolio includes three proprietary products and one distributed product: FlowVision (its flagship multidisciplinary CFD solver covering hydro-gas dynamics, heat transfer, combustion, acoustics, fluid-structure interaction, magnetohydrodynamics, and icing), KompasFlow (a lightweight CFD module embedded in the ASKON KOMPAS-3D CAD system, targeted at designers without deep CFD expertise), РеВерсия (reverse engineering and polygonal modeling software for 3D scanning workflows), and ПК Зенит (a finite element structural analysis package developed by RFYATS-VNIITF under Rosatom, for which TESIS is the official distributor). TESIS also supplies coordinate measuring equipment, laser and optical scanners, and computing hardware, and offers engineering services including custom simulations, reverse engineering, and digital-physical certification of composite materials.

The underlying technology is built around proprietary numerical solvers that have been continuously developed over more than two decades, with major FlowVision releases (3.11 through 3.16) shipped between 2019 and 2026 adding features such as full Linux support, FSI coupling with Abaqus and Fidesys, acoustic solvers, MHD modeling, and a Flamelet combustion model. The platform integrates with domestic Russian operating systems (Astra Linux, ALT OS, RED OS) and processors (Эльбрус, Иртыш), and is certified for nuclear safety calculations by NTS YARB under Rostechnadzor. FlowVision is registered in the Unified Register of Russian Software (#2504) and is deployed at over 1,000 enterprises; a customer competition gallery has accumulated more than 1,700 projects from over 400 enterprises over 23 years.

TESIS operates a hybrid B2B go-to-market combining direct enterprise sales for FlowVision and РеВерсия, channel distribution through ASKON for KompasFlow, and consortium-led selling via Konsortium 'Razvitiye' for an integrated Russian PLM stack. Revenue is generated through software licensing (subscription and perpetual licenses with mandatory technical support for updates), professional engineering services, hardware sales, and distribution margins on ПК Зенит. Pricing is not publicly disclosed, and the company does not report revenue. Named customers span heavy industry (PAO Severstal), aerospace (Ural Aircraft Building Plant, Roscosmos enterprises, TsAGI, Chinese aerospace industry), nuclear (OKB Afrikantov / AEM-technology, Egyptian Nuclear and Radiological Safety Regulator), and academia (MPEI, MIPT, SPbPU, Skoltech).

Name

TESIS Ltd.

Legal name

ООО «Тесис»

Website

https://tesis.com.ru

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

TESIS Ltd. is a Russian engineering software company founded in 1994 that develops and distributes CFD simulation software (FlowVision, KompasFlow) and reverse engineering tools to industrial enterprises in aerospace, nuclear energy, shipbuilding, and turbomachinery sectors.

Ownership category

akta.pro rank

Product category

Engineering Simulation Software (CAE)

NAICS

Custom Computer Programming Services (541511), Testing Laboratories and Services (54138), Engineering Services (54133), Scientific Research and Development Services (5417)

SIC

Services-Prepackaged Software (7372), Services-Testing Laboratories (8734), Services-Computer Programming Services (7371)

akta.pro primary industry

Systems Engineering & Technical Program Management (BPAHAIAI)

akta.pro secondary industries

Testing, Inspection, Certification & Commissioning (TICx) Technical Services (BPAHAIAL), Product Design & Mechanical Engineering Consulting (BPAHAIAJ)

Keywords

• Computational fluid dynamics software
• Engineering simulation software
• Multidisciplinary modeling
• Reverse engineering services
• Finite element analysis software

Headquarters

HQ city

Moscow

HQ country

Russia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Supply Chain

Revenue model

1. Software Licensing: Sale of proprietary engineering software products including FlowVision, KompasFlow, and РеВерсия. Products are licensed with technical support packages.
2. Engineering Services: Performance of computational and engineering analysis work, reverse engineering and metrology services, digital certification services.
3. Hardware and Equipment Supply: Supply of coordinate measuring equipment, laser and optical scanners, and computing hardware for computational departments.
4. Distribution Revenue: TESIS acts as official distributor of ПК Зенит from RFYATS-VNIITF.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

TESIS develops, sells, and implements proprietary Russian engineering software for multidisciplinary CAE simulation and reverse engineering, including FlowVision (multidisciplinary CFD/FSI solver), KompasFlow (embedded CFD module in KOMPAS-3D), and РеВерсия (reverse engineering software), and distributes ПК Зенит FEA software from RFYATS-VNIITF. The company also delivers custom engineering analysis, reverse engineering and metrology, and digital/physical composite testing services to industrial enterprises.

Product overview

ТЕСИС offers a portfolio of proprietary Russian engineering software products and services. The core products include FlowVision (multidisciplinary CFD simulation software), KompasFlow (CFD module embedded in КОМПАС-3D), and РеВерсия (reverse engineering software). ТЕСИС also distributes ПК Зенит from РФЯЦ ВНИИТФ for finite element analysis. The product portfolio covers hydro-gas dynamics, heat-mass transfer, body dynamics, acoustics, electromagnetics, and multidisciplinary simulations including FSI coupling. The company provides engineering services including custom calculations, reverse engineering/metrology, and experimental-digital certification. FlowVision serves as the flagship solver underlying KompasFlow, while РеВерсия handles 3D scanning and CAD model reconstruction.

Differentiator

Problem solved

Functional benefit

Brands

• FlowVision: Multidisciplinary modeling software package for simulating hydro-gasdynamics, heat transfer, chemical reactions, acoustics, and other physical processes. Used in aerospace, shipbuilding, nuclear energy, and turbomachinery industries.
• KompasFlow
• РеВерсия
• ПК Зенит

Products and services

• FlowVision Russian multidisciplinary CFD software package for modeling three-dimensional fluid/gas flows, heat transfer, conjugate heat exchange, fluid-structure interaction (FSI), combustion, chemical reactions, and electromagnetic hydrodynamics. Used by aerospace, nuclear, shipbuilding, and other industrial sectors.
• KompasFlow Aero-hydrodynamic and thermal analysis application embedded within the KOMPAS-3D CAD system that enables designers to run CFD calculations directly inside the CAD interface without deep CFD expertise. Used for quick design-iteration aerodynamic and thermal feedback.
• РеВерсия (ReVersiya) Software for reverse engineering tasks and polygonal modeling, used for 3D scanning of products/equipment, CAD model reconstruction, mesh processing, and scan alignment in world coordinate systems.
• ПК Зенит (PK Zenit) Russian finite element software from РФЯЦ ВНИИТФ for solving static and dynamic strength problems, natural and forced vibration calculations, and non-stationary heat transfer. Distributed in Russia and abroad by TESIS under an official distribution agreement with the nuclear center.
• Engineering Analysis Services Custom engineering calculations of any complexity performed by TESIS specialists for industrial customers, covering CFD, thermal, structural, and multidisciplinary analyses.
• Reverse Engineering and Metrology Services 3D scanning of products and equipment with preparation of construction/design documentation, using TESIS's own РеВерсия software and scanning hardware.
• Coordinate Measuring Equipment Supply of coordinate measuring machines, laser and optical 3D scanners, and computing hardware for industrial calculation departments.
• Digital and Physical Testing of Composite Products Experimental-digital certification services for composite materials and products, including virtual testing, conducted under the Experimental-Digital Certification Platform (EDCP) program with Skoltech and SPbPU.

Quantifiable outcome

• FlowVision applied in aviation, shipbuilding, nuclear energy for over 20 years at major Russian industrial enterprises
• +3 more outcomes

Named customers9 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

AI capability7 records

Feature4 records

Partnerships

13 partnerships are on record, tiered core and minor.

• DATADVANCEcoreTechnology or Integration · 1 January 2024DATADVANCE and TESIS signed cooperation agreement for integration of their software products. Companies implemented several projects combining DATADVANCE's automated calculation framework with FlowVision's numerical modeling capabilities. Development of direct integration block for FlowVision in DT Seven platform.
• RFYATS-VNIITF (Russian Federal Nuclear Center)coreOEM/ Whitelabel/ Licensing Partner · 1 January 2024RFYATS-VNIITF (enterprise of Rosatom State Corporation) and TESIS signed distribution agreement making TESIS official distributor of ПК Зенит finite element software package.
• Konsortium 'Razvitiye' (ASKON, APM, ADEM, EREMEX)coreStrategic or Co-development PartnerTESIS is part of Konsortium 'Razvitiye' - union of Russian engineering software developers working on integrated Russian PLM solution. Consortium enables tight integration of CAD/EDA/CAE/CAM/PDM systems from multiple vendors.
• Ural Aircraft Building Plant (UZA)coreStrategic or Co-development PartnerUZA implementing FlowVision for aircraft development including icing calculations for compliance with aviation certification requirements. Joint work on import substitution of Western CAE software.
• Astra Linux (GK Astra)coreTechnology or IntegrationConfirmed full compatibility and correct operation of FlowVision with Astra Linux Special Edition including version 1.7. Certified within Ready for Astra Linux program.
• Alt Linux (Basalt SPO)coreTechnology or IntegrationConfirmed full compatibility and correct operation of FlowVision with Alt Workstation K 8 and Alt Server 8 operating systems.
• RED OS (RED SOFT)coreTechnology or IntegrationRED SOFT and TESIS confirmed compatibility of RED OS and FlowVision 3.13. Testing conducted for import substitution implementation at critical information infrastructure facilities.
• Skoltech (Skolkovo Institute of Science and Technology)coreStrategic or Co-development PartnerTESIS and Skoltech collaborating on Experimental-Digital Certification Platform (EDCP) project under Technet 4.0 National Technology Initiative. Joint work on digital certification of composite materials.
• SPbPU (St. Petersburg Polytechnic University)minorStrategic or Co-development PartnerCollaboration on Experimental-Digital Certification Platform with Advanced Engineering School 'Digital Engineering'.
• OKB AfrikantovminorStrategic or Co-development PartnerInitiated second certification of FlowVision in NTS YARB for modeling of thermal-hydraulic processes in high-temperature gas-cooled nuclear reactors.
• PKB PetrobaltminorStrategic or Co-development PartnerJoint testing of Russian software complexes on real shipbuilding project as part of Konsortium 'Razvitiye' activities.
• Datomiks and VO BezopasnostminorChannel Partner/ Reseller/ DistributorCompanies helping Egyptian nuclear and radiological safety regulator to master FlowVision, Fidesys, and pSeven after export control procedures.
• TsAGI (Central Aerohydrodynamic Institute)minorStrategic or Co-development PartnerJoint aerospace technology education program including practical course on UAV aerodynamic modeling using FlowVision.

Scale indicators8 records

Recent moves6 records

Expansion highlights7 records

Broad incumbents

• ANSYS: Global CAE leader whose Fluent and CFX products are the dominant CFD platforms that FlowVision is positioned to replace in Russian industrial accounts. Directly comparable multiphysics scope (CFD, FSI, thermal, electromagnetics) and customer overlap in aerospace, nuclear and turbomachinery.
• Siemens Digital Industries Software: Owner of the Star-CCM+ CFD platform and the broader Xcelerator PLM portfolio (NX, Teamcenter). Direct peer for multiphysics industrial simulation and PLM-integrated CAE, competing with TESIS across the same Russian industrial accounts.
• Dassault Systèmes (SIMULIA): Provider of Abaqus FEA and SIMULIA multiphysics simulation, integrated with CATIA CAD. Overlaps with TESIS in structural and FSI simulation and is one of the Western incumbents FlowVision's FSI integration with Abaqus is designed to interoperate with or substitute for.
• Altair Engineering: Provider of HyperWorks CAE suite including AcuSolve CFD and OptiStruct structural solvers. Comparable multidisciplinary simulation offering and presence in aerospace/industrial markets that overlap with TESIS's FlowVision accounts.
• Hexagon (MSC Software): Owner of MSC Nastran, Marc and Cradle CFD — competing with TESIS in structural and multiphysics simulation for aerospace and industrial customers. Comparable customer base in regulated engineering programs.

Regional players

• ASKON: Russian CAD/PLM vendor behind KOMPAS-3D and TESIS's distribution partner for KompasFlow. Core member of the same Konsortium 'Razvitiye', making it both a partner and a strategic Russian peer in the integrated CAD/CAE/PLM stack.

Emerging players

• Fidesys: Russian developer of the Fidesys finite element analysis package, listed in the same Russian Software Registry and co-integrated with FlowVision via FSI. Competes for the same import-substitution-driven FEA budget in Russian industrial accounts.

Others

• Cadence Design Systems: Provider of system-level simulation and EDA tools (Celsius, Fidelity CFD, Clarity) that increasingly compete in multiphysics and electronic cooling — adjacent to FlowVision's electronics-cooling and electromagnetics capabilities.

Direct peers

• NUMECA: Specialist CFD vendor (FINE/Open, OMNIS) with deep turbomachinery and rotating machinery focus that mirrors FlowVision's strongest vertical. Closest direct competitor in turbomachinery and aerospace CFD workflows.
• COMSOL: Developer of the COMSOL Multiphysics simulation platform, which overlaps directly with FlowVision's multiphysics scope (CFD, heat transfer, acoustics, electromagnetics, FSI). Targets similar academic and industrial users with coupled physics problems.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/tesis_eng
• YouTubeyoutube.com/channel/UCXW4EJt3U6I4wL3T5y6xZQ
• LinkedInlinkedin.com/company/tesis-ltd-

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about TESIS Ltd.