What Simetrix Technologies does

SIMetrix Technologies Ltd. is a UK-based, privately held software company that develops circuit simulation tools for professional analog and power electronics engineers. The platform combines two core simulation engines: SIMetrix, an enhanced SPICE-based mixed-mode simulator engineered for fast convergence on analog circuits, and SIMPLIS, an event-driven simulator for switching power circuits made available through a long-running partnership with SIMPLIS Technologies since 2001. Both run inside an integrated development environment that includes a schematic editor, waveform viewer and a proprietary scripting system, with optional Verilog-A and Verilog-HDL support in higher tiers.

The product line is structured as a three-tier annual subscription (Classic, Pro, Elite), with the cross-grade SIMetrix/SIMPLIS variants combining SPICE and event-driven simulation for power electronics customers. Optional modules extend the platform into design verification (DVM), magnetics design (MDM), and Verilog-HDL co-simulation (SIMPLIS VH). A free Elements edition with circuit-size caps is offered as a customer-acquisition funnel, while paid licensing is delivered through Portable, LAN and WAN license options. Distribution is primarily direct and self-serve through simetrix.co.uk, with enterprise sales handled in-house and Japan covered by a regional reseller (Intersoft Inc.).

Founded in 1992 by engineers frustrated with the convergence and pricing of incumbent EDA tools, SIMetrix has operated continuously as a self-funded, independent company with 11–50 employees and no outside investors. The customer base spans leading global electronics enterprises on the high end and smaller consulting businesses on the long tail, with active markets in the UK, USA and Japan.

Name

Simetrix Technologies

Legal name

SIMetrix Technologies Ltd.

Website

https://simetrix.co.uk

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

SIMetrix Technologies Ltd. is a self-funded UK software firm that develops SPICE-based (SIMetrix) and event-driven (SIMPLIS) circuit simulation tools for professional analog and power electronics engineers, sold via tiered annual subscriptions and a free Elements version.

Ownership category

akta.pro rank

Headquarters

HQ city

Thatcham

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Software Licenses: The company generates revenue through sale of software licenses for its circuit simulation products. Licensing options include Portable, LAN (Local Area Network), and WAN (Wide Area Network) licenses to serve different organizational deployment needs.
2. Freemium Version: SIMetrix/SIMPLIS Elements is offered as a free version with circuit size limitations. This serves as a lead generation tool to introduce engineers to the platform and convert them to paid versions for larger designs.
3. Maintenance and Support: Registered users receive automatic access to the download page and notifications when product updates are available, suggesting ongoing maintenance contracts.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

SIMetrix Technologies develops and licenses circuit simulation software for analog and power electronics design. Its core offerings are SIMetrix (an enhanced SPICE-based mixed-mode simulator) and SIMPLIS (an event-driven simulator for switching power circuits), delivered through an integrated development environment with schematic editor, waveform viewer, and scripting. The products are sold as tiered editions (Classic, Pro, Elite) with annual subscription licensing, optional add-on modules (Design Verification, Verilog-HDL Co-Simulation, Magnetics Design), and a free Elements version for lead generation.

Product overview

SIMetrix Technologies offers a suite of circuit simulation products based on a platform-plus-modules architecture. The core products are SIMetrix (enhanced SPICE simulator for analog electronics) and SIMetrix/SIMPLIS (which combines SPICE with SIMPLIS for power electronics). These come in three tiers: Classic (base version), Pro (adds Verilog-A/H, Optimiser, multi-core up to 4 cores), and Elite (multi-core up to 16 cores, advanced IC design, real-time noise analysis). Additional modules include the Design Verification Module (DVM), SIMPLIS VH (Verilog-HDL co-simulation for power IC design), and SIMPLIS Magnetics Design Module (MDM) for transformer/inductor design with thermal analysis. SIMetrix/SIMPLIS Elements is a free version with circuit size limitations.

Differentiator

Problem solved

Functional benefit

Brands

• SIMetrix: Mixed-mode circuit simulator offering enhanced SPICE for fast convergence, contained within a built-in development environment.
• SIMetrix/SIMPLIS
• SIMetrix Classic
• SIMetrix Pro
• SIMetrix Elite
• SIMetrix/SIMPLIS Classic
• SIMetrix/SIMPLIS Pro
• SIMetrix/SIMPLIS Elite
• SIMetrix/SIMPLIS Elements
• SIMPLIS Magnetics Design Module (MDM)
• SIMPLIS VH Module
• Design Verification Module (DVM)

Products and services

• SIMetrix (SIMetrix Classic / Pro / Elite family) Mixed-mode circuit simulator based on an enhanced SPICE engine, delivered with an integrated development environment containing a schematic editor, waveform viewer, and scripting system. Available in Classic, Pro (adds Verilog-A, Verilog-HDL, Optimiser, multi-core up to 4 cores, basic IC design features), and Elite (multi-core up to 16 cores, advanced IC design features, real-time noise analysis) tiers. Sold as an annual subscription license to professional electronics engineers at electronics companies and consultancies for analog circuit design and verification.
• SIMetrix/SIMPLIS (Classic / Pro / Elite family) Combined SIMetrix + SIMPLIS offering that pairs the enhanced SPICE mixed-mode simulator with the SIMPLIS event-driven simulator for fast, accurate switching power circuit analysis, all within the SIMetrix integrated development environment. Pro tier adds System Designer building blocks; Elite tier adds elite-level SIMPLIS features. Sold as an annual subscription license to power electronics engineers and IC designers for power circuit analysis, switching power supply design, and digital power system design.
• SIMetrix/SIMPLIS Elements (Free Version) Free version of the SIMetrix/SIMPLIS circuit simulator for personal, educational, and business use, with size limits (e.g., 750 analog nodes for SPICE; limited state variables for SIMPLIS) and without advanced features such as command line, user scripts, Python interface, and encrypted model support. Used as a freemium entry point to introduce engineers to the platform and convert them to paid editions for larger designs.
• Design Verification Module (DVM) Add-on module for the SIMetrix simulator providing comprehensive design verification capabilities, including enhanced testing and validation workflows for analog and power circuit designs. Sold separately as an additional module to existing SIMetrix / SIMetrix/SIMPLIS customers.
• SIMPLIS VH (Verilog-HDL Co-Simulation Module) Add-on module that enables parallel operation of the SIMPLIS analog simulation engine with a Verilog-HDL digital simulation engine for power IC designers and digital power system designers designing digital control in actual analog application circuits. Sold as an additional module.
• SIMPLIS Magnetics Design Module (MDM) Add-on module providing an intuitive graphical interface for designing inductors and transformers — selecting core material, shape, size, wire material, and number of turns — and calculating PWL (piecewise-linear) inductance for circuit simulation, with post-processing for accurate DC/AC winding losses, core losses, and thermal modeling. Sold as an additional module to SIMetrix/SIMPLIS users.

Quantifiable outcome

• Reduced development costs for small, large and global businesses

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Two partnerships are on record, tiered core and regional.

• SIMPLIS TechnologiescoreStrategic or Co-development Partner · 1 January 2001Established partnership in 2001 with SIMPLIS Technologies to create the SIMetrix/SIMPLIS product for power circuit analysis. The partnership combines SIMetrix's SPICE simulation with SIMPLIS Technologies' event-driven simulator. The companies remain separate entities but continue to work together to create class-leading power electronics tools.
• Intersoft Inc.regionalChannel Partner/ Reseller/ DistributorRegional distributor in Japan that handles contact with Japanese users who download the free version. Intersoft Inc collects user information from the registration form and uses it to introduce themselves as local sales contact for Japan.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Ansys: Ansys provides multi-physics simulation including Ansys Maxwell and Twin Builder, with some overlap in power-electronics and analog modeling. Larger portfolio player that competes for the same design-engineer budget.
• Altair Engineering: Altair's simulation portfolio (including FEKO and electronic system design tools) overlaps with circuit and power-electronics design. A broader simulation vendor rather than a focused EDA simulator competitor.
• Siemens EDA (formerly Mentor Graphics): Siemens EDA offers Eldo and ADMS as part of a broad EDA portfolio spanning IC implementation, verification, and PCB. Competes with SIMetrix on circuit simulation but offers a much wider, bundled product suite.

Direct peers

• Cadence Design Systems: Cadence's Spectre and SpectreX are primary competing SPICE/circuit simulators for analog and mixed-signal IC design. Direct competitor to SIMetrix at the high end of the analog simulation market.
• Keysight Technologies: Keysight's PathWave ADS (Advanced Design System) and RF/analog simulation tools target similar mixed-signal and RF circuit designers as SIMetrix, particularly in communications and aerospace electronics.
• Synopsys: Synopsys sells HSPICE and FineSim, the dominant SPICE-class simulators for analog and power-electronics design at leading semiconductor companies. Competes head-on with SIMetrix for enterprise analog/power simulation seats.
• SIMPLIS Technologies: Provider of the SIMPLIS event-driven engine that powers SIMetrix/SIMPLIS. A direct technology partner that also sells SIMPLIS independently, making it both an ally and a partial competitor in switching-power simulation.

Emerging players

• EMAG Technologies: EMAG develops EM/circuit co-simulation and modeling tools used in RF/microwave and antenna-integrated circuit design. Comparable niche simulator vendor with overlapping workflows for mixed-signal and RF engineers.
• Qorvo (QSpice): Qorvo offers QSpice as a free, modern SPICE simulator targeting power and RF system designers. It is a competing free-class alternative to SIMetrix Elements at the entry tier of power-electronics simulation.
• Analog Devices (LTspice): Analog Devices distributes LTspice as a free SPICE-based simulator widely used in power and analog design. It commoditizes the entry-level tier and competes with SIMetrix Elements for hobbyist and SMB users.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/jills-creations

Revenue estimate

Valuation estimate

Number of profiles

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 Simetrix Technologies