Tech-X Corporation
Tech-X Corporation develops multiphysics simulation software (VSim, XSim, RSim) using FDTD, PIC, and Charged Fluid methods for government laboratories, semiconductor manufacturers, aerospace and defense firms, and universities modeling plasma, electromagnetics, and radiation phenomena.
- Company typePrivate
- Founded1994
- HeadquartersBoulder, United States
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What Tech-X Corporation does
Tech-X Corporation is a Boulder, Colorado-based developer of multiphysics simulation software for engineers and research scientists, founded in 1994 and acquired by Silvaco Group, Inc. in April 2025. The company's core products—VSim (available in VSimEM, VSimVE, and VSimPlasma configurations), XSim, and RSim—apply Finite-Difference Time-Domain (FDTD), Particle-in-Cell (PIC), and Charged Fluid methods to model electromagnetic, electrostatic, plasma, and radiation-transport phenomena. Proprietary cut-cell algorithms and scalable parallel computing enable high-accuracy simulations on clusters and major supercomputers (Argonne Theta, LBNL Cori, KAUST Shaheen II, Sydney Artemis), with distribution also available via AWS CloudCompute.
The company's primary customers are U.S. Department of Energy national laboratories (Los Alamos, Fermilab, Argonne), NASA, international physics research organizations (CERN), aerospace and defense contractors, semiconductor and photonics manufacturers, and academic research universities. Documented applications include superconducting RF cavity validation, traveling-wave tube design, space radiation assessment for the Orion crewed vehicle, plasma wafer etching simulation, and radar cross-section analysis.
Tech-X monetizes primarily through multi-year subscription licenses (node-locked workstation, cluster, and floating-network tiers with pricing that varies by core count and configuration), supplemented by technical consulting services and training courses ($550/day per trainee, with volume discounts). The company maintains regional resellers in China, India, Japan, and Korea, hosts the annual Tech-X Worldwide Simulation Summit, and provides nearly 100 simulation examples plus an extensive peer-reviewed publication record. Revenue and funding totals are not publicly disclosed; the company received approximately $1.36M in U.S. Department of Energy grants across two tranches in 2024.
Tech-X Corporation firmographics
Firmographics- Name
- Tech-X Corporation
- Legal name
- Tech-X Corporation
- Website
- https://txcorp.com
- Company type
- Private
- Founded year
- 1994
- Operating status
- Acquired
- Headcount range
- 51–100 employees
- Short description
- Tech-X Corporation develops multiphysics simulation software (VSim, XSim, RSim) using FDTD, PIC, and Charged Fluid methods for government laboratories, semiconductor manufacturers, aerospace and defense firms, and universities modeling plasma, electromagnetics, and radiation phenomena.
- Ownership category
- akta.pro rank
Tech-X Corporation industry classification
Industry- Product category
- Engineering Simulation Software
- NAICS
- Computer Systems Design Services (541512)
- SIC
- Services-Computer Programming Services (7371)
- akta.pro primary industry
- Open Educational Resources (OER) & Curriculum Repositories (EDAFACAJ)
- akta.pro secondary industry
- Digital Labs, Simulations & Virtual Practicals (Non-XR) (EDAFACAF)
Keywords
Where Tech-X Corporation is headquartered
LocationHeadquarters
- HQ city
- Boulder
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Tech-X Corporation business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Software Licenses: Tech-X generates revenue through the sale of software licenses for VSim, XSim, and RSim simulation products. License types include Node-Locked Workstation licenses tied to MAC addresses, Cluster licenses for computer clusters, and Floating Network licenses for larger deployments. Pricing varies by number of cores, software capabilities, and institution type.
- Technical Consulting Services: Tech-X offers professional consulting services where consultants solve plasma physics and computational science problems for clients, help access cloud computing hardware, and work on confidential projects under NDAs.
- Training Services: The company provides training courses both at their Boulder, Colorado headquarters and onsite at client locations. Standard rate is $550/day per trainee with discounts available for 10+ trainees from a single institution.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Multi-year contract | Node-Locked Workstation License - tied to individual workstations based on MAC addresses |
| Subscription | Multi-year contract | Cluster License - for computer clusters with queuing systems |
| Subscription | Multi-year contract | Floating Network License - flexible deployment across workstations and clusters |
| Unit Pricing | Multi-year contract | Onsite Training - at Tech-X headquarters or client location |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels8 records
Tech-X Corporation product offering
Product offeringCore offering
Tech-X Corporation develops and licenses advanced multiphysics simulation software (VSim, XSim, RSim) used by engineers and scientists to model electromagnetic, plasma, vacuum electronics, and radiation phenomena. The software combines FDTD, Particle-in-Cell, Monte Carlo, and Charged Fluid methods, is parallelized for high-performance computing clusters and supercomputers, and is delivered via subscription licenses with optional paid consulting and training services.
Product overview
Tech-X Corporation offers a suite of advanced physics simulation software products designed for multiphysics modeling. The core product is VSim Multiphysics, a comprehensive simulation platform combining FDTD, Particle-in-Cell (PIC), and Charged Fluid methods. VSim is available in three specialized configurations: VSimEM for electromagnetics and electrostatics, VSimVE for vacuum electronics and microwave devices, and VSimPlasma for kinetic plasma simulations. XSim represents a newer high-performance computing benchmark for electromagnetic and photonic simulations. RSim provides Monte Carlo radiation simulation based on Geant4. The company also offers technical consulting, training courses, and support services. Tech-X Corporation was acquired by Silvaco Group in April 2025.
Differentiator
Problem solved
Functional benefit
Brands
- VSim: Multiphysics simulation software combining FDTD, PIC, and Charged Fluid methods for plasma modeling, electromagnetics, and vacuum electronics.
- XSim
- RSim
- VSimEM
- VSimVE
- VSimPlasma
Products and services
- VSim Multiphysics Flagship multiphysics simulation platform combining Finite-Difference Time-Domain (FDTD), Particle-in-Cell (PIC), and Charged Fluid (Finite Volume) methods for electromagnetic, electrostatic, plasma, and vacuum electronics simulations. Sold to engineers and research scientists worldwide via node-locked, cluster, or floating network subscription licenses.
- XSim High-performance electromagnetic and photonic simulation platform designed for rapid and precise analysis of antenna arrays, photonic devices, and wafer-scale plasma models. Marketed as Tech-X's next-generation simulation offering that harnesses HPC for complex simulation challenges.
- RSim Monte Carlo radiation simulation tool based on the Geant4 radiation transport model, with CAD importability, shape healing, and a 700-material database. Used for radiation protection, shielding calculations, and assessing survivability in harsh environments such as space, including crewed vehicles like NASA's Orion.
- Technical Consulting Services Paid expert consulting services in plasma physics and computational science. Tech-X consultants solve client simulation problems, help clients access cloud computing hardware, and work on confidential projects under NDAs. Sold to research institutions, government labs, and commercial companies needing specialized multiphysics simulation expertise.
- Training Courses Professional training programs delivered at Tech-X's Boulder, Colorado headquarters or onsite at client locations, covering VSim training, USim training, customized private training, and a university class program for computational physics. Standard rate is $550/day per trainee with discounts for 10+ trainees from the same institution.
Quantifiable outcome
- Simulation time drastically reduced with Kirchhoff Box algorithm for far-field calculations even on small machines
- +1 more outcomes
Companies that use Tech-X Corporation
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles4 records
Tech-X Corporation technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature9 records
Tech-X Corporation partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and minor.
- Silvaco Group, Inc.coreSilvaco Group, Inc. acquired Tech-X Corporation on April 29, 2025. The acquisition combines Tech-X's simulation tools with Silvaco's Victory TCAD platform to enable more accurate digital twin models for photonics, semiconductor devices, and wafer-scale plasma etching. This represents Silvaco's strategic expansion into AI applications and the rapidly growing photonics market.
- Regional Resellers (China, India, Japan, Korea)minorTech-X Corporation maintains reseller partnerships in China, India, Japan, and Korea to distribute and support their simulation software products in the Asia-Pacific region.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
Tech-X Corporation competitors and assessment
Company assessmentDirect peers
- COMSOL: COMSOL Multiphysics is the closest direct competitor, offering a general-purpose multiphysics simulation environment with modules for electromagnetics, plasma, and semiconductor device physics. Both target R&D engineers and scientists needing coupled physics solvers, and both sell via node-locked and floating network licenses to similar university, government, and industrial customer segments.
- Remcom: Remcom's XFdtd and Wireless InSite products provide 3D electromagnetic simulation using FDTD methods — the same core numerical approach as VSimEM. Both serve antenna design, radar cross-section, and electromagnetic compatibility applications for aerospace/defense and commercial customers, and both market to research institutions.
- CST (now part of Dassault Systèmes): CST Studio Suite (acquired by Dassault in 2016) provides 3D EM simulation for microwave, RF, and particle-in-cell applications overlapping VSimVE and VSimPlasma. Both serve vacuum electronics, klystron/TWT/magnetron design, and plasma discharge simulation for research and industry customers.
Broad incumbents
- ANSYS: ANSYS is a broad incumbent in engineering simulation with HFSS, Maxwell, and SIwave for electromagnetics, plus multiphysics capabilities overlapping Tech-X's VSimEM/VSimVE. Both sell to aerospace, defense, semiconductor, and research customers; ANSYS is much larger and offers a full CAE suite, while Tech-X specializes in FDTD/PIC plasma methods.
- Dassault Systèmes (SIMULIA): Dassault's SIMULIA portfolio (including CST Studio Suite for electromagnetics) competes with Tech-X across RF/microwave, antenna, and multiphysics simulation. SIMULIA brings a much broader portfolio spanning structural, thermal, and fluid simulation alongside EM, and serves overlapping aerospace, defense, and electronics customers.
- Cadence Design Systems: Cadence offers EDA tools plus multiphysics simulation through its AWR, Clarity, and Sigrity products, targeting RF, photonics, and semiconductor packaging design. Cadence overlaps with Tech-X in electromagnetic simulation for advanced packaging, photonic design, and foundry customer workflows — areas Tech-X will reach through its Silvaco acquisition.
- Synopsys: Synopsys is a leading EDA vendor with TCAD (Sentaurus) and photonic simulation tools that overlap with Tech-X's semiconductor and photonics applications. Both target fabs and semiconductor designers; Synopsys is much larger with broader foundry relationships and an integrated design-to-simulation workflow that Tech-X is now positioned to complement through Silvaco.
- Silvaco Group: Silvaco is Tech-X's parent company following the April 2025 acquisition and offers the Victory TCAD platform for semiconductor device simulation. The two are now strategically aligned: Silvaco's Victory TCAD combined with Tech-X's multiphysics solvers forms an integrated stack targeting photonics, semiconductor devices, and wafer-scale plasma etching.
- Altair Engineering: Altair offers simulation software including FEKO for electromagnetics and FEA-based multiphysics tools serving aerospace, automotive, and electronics customers. FEKO addresses similar antenna, RCS, and EMI/EMC problems as VSimEM, though Altair operates a much broader simulation portfolio across mechanical and systems engineering.
- Keysight Technologies (PathWave/EMPro): Keysight's EMPro and PathWave Design products provide 3D electromagnetic simulation for RF/microwave and high-speed electronics design, competing with VSimEM for antenna, RF component, and PCB-level EM analysis. Keysight also bundles simulation with its instrumentation, an integration angle Tech-X has not pursued.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks2 records
Key highlights6 records
Customer concentration
Tech-X Corporation social profiles
Digital presenceTech-X Corporation financial estimates
Financial estimateRevenue estimate
Valuation estimate
Tech-X Corporation leadership team
Management profileNumber of profiles
Profiles2 records
Tech-X Corporation funding detail
Funding detailFunding overview
Funding rounds2 records
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Tech-X Corporation M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Tech-X Corporation
What does Tech-X Corporation do?
Tech-X Corporation develops and licenses advanced multiphysics simulation software (VSim, XSim, RSim) used by engineers and scientists to model electromagnetic, plasma, vacuum electronics, and radiation phenomena. The software combines FDTD, Particle-in-Cell, Monte Carlo, and Charged Fluid methods, is parallelized for high-performance computing clusters and supercomputers, and is delivered via subscription licenses with optional paid consulting and training services.
Is Tech-X Corporation a public or private company?
Tech-X Corporation is a private company. It is classified as corporate owned and is currently acquired.
When was Tech-X Corporation founded?
Tech-X Corporation was founded in 1994. It employs 51 to 100 people.
Where is Tech-X Corporation based?
Tech-X Corporation is headquartered in Boulder, United States, in the North America region.
How does Tech-X Corporation make money?
Three revenue lines are on record. Software Licenses are the primary driver. The others are technical Consulting Services and training Services.
Who are Tech-X Corporation's main competitors?
Direct peers on record are COMSOL, Remcom and CST (now part of Dassault Systèmes). Broad incumbents are ANSYS, Dassault Systèmes (SIMULIA), Cadence Design Systems, Synopsys, Silvaco Group, Altair Engineering and Keysight Technologies (PathWave/EMPro).
Does Tech-X Corporation have an API?
No public API is recorded for Tech-X Corporation.
What industry is Tech-X Corporation in?
Tech-X Corporation's product category is Engineering Simulation Software. Its primary akta.pro industry code is EDAFACAJ, Open Educational Resources (OER) & Curriculum Repositories, with a secondary code of EDAFACAF, Digital Labs, Simulations & Virtual Practicals (Non-XR). Its NAICS code is 541512 and its SIC code is 7371.