C'set

What C'set does

C'set Co.,Ltd. (株式会社シーセット) is a privately held Japanese software company headquartered in Chiyoda-ku, Tokyo, founded in 2000 (operating 26 years), specializing in 3D CAD data viewing, measurement, format conversion, and inter-company 3D data sharing tools for the manufacturing sector. The company's product family — 3DTascalX, 3DTascalX/Light, 3DFovi, 3DX Reader, and 3DX ReaderDS — is built on the Parasolid geometric kernel, the same engine underlying NX and SOLIDWORKS, which enables CAD-level dimensional accuracy and high-fidelity format translation across CATIA V5, NX, Creo, SOLIDWORKS, Parasolid, STEP, IGES, and JT files at significantly lower cost and complexity than full CAD systems.

C'set's go-to-market combines product-led growth (30-day free trials, free viewer downloads via website and mobile app stores) with direct sales through its C'set Store e-commerce platform, individual online consultations, and free basic/advanced online seminars. The company also operates a sales agency channel in Thailand. Revenue is generated through a mix of perpetual node-locked licenses (3DTascalX from ¥387,200), annual subscriptions (3DTascalX/Light from ¥99,000/year, 3DFovi from ¥47,850), freemium viewers (3DX Reader, 3DX ReaderDS), add-on modules (CATDrawing Option, Shape Editing Option, 3DXDS(W) Option), and contracted custom development for derivative software and integration tools.

The company serves more than 3,000 installed companies in Japan, primarily mold and die manufacturers, automotive tier suppliers, precision instrument makers (notably watch manufacturing — Seiko Epson has been a continuous customer since 2002), die casting, plastic injection molding, and assembly/production operations. Documented enterprise customers include Seiko Epson, Kikuchi Seisakusho, Koganei Mold, HOWA, Kurita Aluminium, Yamashita Electric, CP Kasei, and multiple Thailand-based subsidiaries of Japanese manufacturers. The company maintains a lean organization of 1–10 employees, with CEO Akira Koshiyama as general manager, and reports a self-surveyed customer satisfaction rate of 98%.

Name

C'set

Legal name

C'set Co.,Ltd.

Website

https://3dtascal.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

1–10 employees

Short description

C'set Co.,Ltd. is a privately held Japanese software company that builds Parasolid-kernel-based 3D CAD data viewers (3DTascalX, 3DTascalX/Light, 3DFovi) and free viewers for viewing, measuring, and converting 3D CAD files. It serves over 3,000 Japanese and Southeast Asian manufacturers in mold, die, automotive, and precision instrument sectors.

Ownership category

akta.pro rank

Product category

3D CAD Visualization Software

NAICS

Software Publishers (5132), Custom Computer Programming Services (541511)

SIC

Services-Computer Programming Services (7371)

akta.pro primary industry

3D Design & CAD for Additive Manufacturing (IMAAACAA)

Keywords

• 3D CAD viewers
• CAD data conversion
• Manufacturing software
• 3D data visualization
• Engineering design tools

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software License Sales (Perpetual / Node-locked): 3DTascalX is sold as a perpetual node-locked license starting at ¥387,200. The license includes a hardware key (USB dongle) option for V10 or earlier versions, with annual maintenance support available for version upgrades.
2. Subscription Licensing (Annual): 3DTascalX/Light is offered on a subscription basis starting at ¥99,000/year, allowing customers to reduce initial investment. Floating licenses are also available, enabling network-based license sharing across multiple workstations.
3. Software Subscriptions (3DFovi): 3DFovi is sold as an annual subscription (perpetual node-locked option also available), providing a lower-cost entry point for simple 3D viewing needs.
4. Free Viewer Licensing (Freemium Lead Generation): 3DX Reader and 3DX ReaderDS are provided free of charge to generate product adoption and facilitate data sharing with customers/partners. 3DX ReaderDS requires a paid 3DXDS(W) option on the sender software side.
5. Option Add-ons and Extensions: Optional products including CATDrawing option (¥99,000–¥198,000/year NL/FL), Shape Editing option (¥19,800/year), and 3DXDS(W) option (¥19,800/year) provide incremental recurring revenue from existing customer base.
6. Contracted / Custom Development Services: C'set provides commissioned development for derivative software expanding 3D data utilization scope, including customization, 3D data sorting systems, attribute information import tools, and NX/SOLIDWORKS integration tools.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

C'set develops and sells a tiered family of 3D CAD data viewer and conversion tools built on the Parasolid geometric kernel. Its flagship 3DTascalX and 3DTascalX/Light products enable non-CAD staff across manufacturing companies to view, measure, annotate, convert, and share 3D CAD data (CATIA V5, NX, Creo, SOLIDWORKS, Parasolid, STEP, IGES, JT formats) with CAD-level precision at viewer-level cost and complexity. Free viewers (3DX Reader, 3DX ReaderDS) and add-on options extend the platform to enterprise-wide 3D data distribution, including mobile/tablet annotation workflows.

Product overview

C'set offers a tiered family of 3D CAD data viewer tools built around the same Parasolid kernel used by professional CAD software, positioning them as 'more than a viewer, less than CAD.' The core lineup includes 3DTascalX (full-featured precision viewer, ¥387,200+), 3DTascalX/Light (subscription variant without 3D output, ¥99,000/year), 3DFovi (simple lightweight viewer, ¥47,850+), 3DX Reader (free Windows viewer for .3DX files), and 3DX ReaderDS (free mobile viewer for .3dxds files). Add-on options include the CATDrawing Option (for reading CATDrawing files via Spatial's engine, ¥108,900/year) and the Shape Editing Option (fillet and taper features, ¥21,780/year). The product line supports major CAD formats including CATIA V5, NX, Creo, SOLIDWORKS, JT, IGES, and STEP, and targets Japanese manufacturing companies (mold, press, machining, inspection, assembly) with over 3,000 customer companies and 26 years of operation.

Differentiator

Problem solved

Functional benefit

Brands

• 3DTascalX: High-precision 3D viewer with CAD-level functionality for advanced users requiring accurate 3D data display.
• 3DTascalX/Light
• 3DFovi
• 3DX Reader
• 3DX ReaderDS

Products and services

• 3DTascalX High-precision 3D viewer for CAD data using the same Parasolid kernel as professional CAD software, delivering CAD-level shape and dimensional accuracy. Targets users needing more than a basic viewer but not requiring a full CAD license. Perpetual node-locked license starting at ¥387,200.
• 3DTascalX/Light Cost-performance variant of 3DTascalX with 3D data output capability removed, offered via annual subscription. CATIA V5, NX, and Creo Parametric interfaces are standard (not optional). Starting price: ¥99,000/year.
• 3DFovi Simple, lightweight 3D viewer designed for ease of use, enabling non-CAD users to quickly view and measure 3D data. Starting price: ¥47,850 (perpetual node-locked) or annual subscription.
• 3DX Reader Free viewer for viewing and sharing .3DX data files saved from 3DTascalX, enabling enterprise-wide 3D data distribution without a full license. Free forever.
• 3DX ReaderDS Free mobile/tablet viewer (iOS, Android, Windows) for .3dxds files output from 3DTascalX/Light. Allows field teams to annotate, checkmark, and draw on 3D data for cross-department and supplier communication. Requires paid 3DXDS(W) option on the host software side.
• Contracted / Custom Development Services Commissioned development services for derivative software expanding 3D data utilization scope, including customization, 3D data sorting systems, attribute information import tools, and NX/SOLIDWORKS integration tools.

Quantifiable outcome

• EDM department work time reduced by ~40% (half) at Kikuchi Kanagata Thailand
• +5 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Mastercam (CNC Software): Widely-used CAM software whose parent (Sandvik) has expanded into broader manufacturing software. While primarily CAM-focused, Mastercam increasingly bundles viewing and CAD data preparation capabilities that overlap with C'set's mold/machining customer workflows, representing adjacent competitive pressure.

Broad incumbents

• Spatial Corp (Dassault Systèmes): Component and interoperability technology provider (3D InterOp, ACIS) owned by Dassault Systèmes, the parent of CATIA and SOLIDWORKS. Broader incumbent offering CAD format conversion SDKs that compete with C'set's viewer-level conversion capabilities, though embedded rather than standalone.
• Autodesk: Global CAD/CAM/CAE/PLM vendor whose Inventor, Fusion 360, and DWG TrueView products include built-in viewing, measurement, and conversion capabilities. Broad incumbent that competes with C'set's positioning as a lower-cost alternative to full CAD for non-design staff.
• Siemens Digital Industries (NX / Parasolid): Owner of the Parasolid geometric kernel that C'set licenses for its core products, and provider of NX CAD software competing directly with C'set's CATIA/NX format conversion capability. Strategic incumbent that could simultaneously enable and threaten C'set through kernel licensing terms and bundled viewer features.
• Hexagon (Visualisation & CAD): Global metrology and manufacturing software vendor with CAD viewing, PMI, and model-based definition capabilities via products like Visualize. Broad incumbent in manufacturing software serving overlapping enterprise customers with larger portfolios than C'set's viewer focus.

Direct peers

• Theorem Solutions: UK-based CAD visualization, translation, and publishing software provider for manufacturing and engineering. Directly comparable product offering focused on CAD data reuse and viewing across heterogeneous CAD environments.
• TransMagic: US-based CAD translation and repair software company offering 3D data conversion, healing, and viewer functionality across major CAD formats. Direct peer with overlapping product positioning in CAD data interoperability for manufacturing.
• CoreTechnologie: German CAD viewer and data translation/conversion software vendor serving automotive, aerospace, and manufacturing customers. Directly comparable to C'set as a specialized CAD interoperability tool provider with similar 3D format conversion, healing, and viewer functionality.
• Datakit (Cadence Design Systems): France-based CAD/CAM/CAE data interoperability and translation software vendor (now part of Cadence). Direct peer offering cross-format CAD conversion, healing, and visualization tools to manufacturers with overlapping customer use cases to C'set.
• Okino Software: Canadian CAD translation and 3D data conversion software developer with long-standing product line covering major CAD formats. Direct peer in the CAD interoperability niche with similar target market of manufacturers needing cross-CAD data sharing.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@cset3dviewer637

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 C'set