COMTEX
COMTEX (コムテックス株式会社) is a Toyama-headquartered Japanese IT solutions company that builds SaaS tools — principally Kizuku — for digital transformation in the construction industry, serving builders, contractors, housing suppliers, and building-material manufacturers across Japan.
- Company typePrivate
- Founded1989
- HeadquartersTakaoka, Japan
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What COMTEX does
COMTEX (コムテックス株式会社) is a Japanese IT solutions company founded in 1989 and headquartered in Takaoka, Toyama Prefecture, with 103 employees as of April 2026 and registered capital of JPY 36 million. The company focuses on digital transformation (DX) for the Japanese construction industry, serving builders, general contractors, housing suppliers, and building-material manufacturers with a portfolio that includes the core Kizuku (キズク) construction site communication and management application, the egaku (エガク) housing-specification cloud, the Career Link (キャリアリンク) CCUS employment-history management system, the newer MiRAKU (ミラク) renovation sales support tool and TUMUGU (ツムグ) construction consulting service, and an Estimation and Drawing System for building-material manufacturers.
The platform architecture is SaaS-delivered with configuration and integration depth: Kizuku exposes API integrations to host ERP/order-management systems and ships add-on modules such as Kizuku Safety Management and Kizuku Electronic Ordering, while AI capabilities (AI Photo Analysis since November 2021 and an AI Assistant since April 2026) are layered onto the existing workflows. COMTEX holds regulatory-relevant certifications including CCUS registration under MLIT and JIIMA electronic-document certification, which position the company as a compliance-aligned vendor for a heavily regulated buyer base.
The business model combines SaaS subscription fees (Kizuku, egaku, Career Link), tiered pricing (e.g., the April 2026 Career Link Entry Plan aimed at smaller contractors), usage-based and project-based fees, and a professional-services stream through TUMUGU and custom integration projects priced in the JPY 2–30M range. Go-to-market is multi-channel: direct sales supported by regional offices (Fukuoka since June 2023, Tokyo HQ expanded February 2025, plus a Bangkok subsidiary since 2012), a long-standing distribution partnership with Otsuka Shoji deepened by a three-party collaboration with Otsuka Shoji and Kinjirushi in September 2024, and third-party SaaS marketplace listings (FC Apps Direct, April 2026). Scale signals — 41,000 active companies on Kizuku, 140,000 cumulative companies, and 3.5M+ construction projects supported over 31 years — indicate a distributed, SMB-heavy customer base rather than an anchor-enterprise model.
COMTEX firmographics
Firmographics- Name
- COMTEX
- Legal name
- コムテックス株式会社
- Website
- https://ctx.co.jp
- Company type
- Private
- Founded year
- 1989
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- COMTEX (コムテックス株式会社) is a Toyama-headquartered Japanese IT solutions company that builds SaaS tools — principally Kizuku — for digital transformation in the construction industry, serving builders, contractors, housing suppliers, and building-material manufacturers across Japan.
- Ownership category
- akta.pro rank
COMTEX industry classification
Industry- Product category
- Construction Industry SaaS
- NAICS
- Custom Computer Programming Services (541511), Computer Systems Design Services (541512), Computer Systems Design and Related Services (54151)
- SIC
- Services-Computer Programming Services (7371), Services-Engineering, Accounting, Research, Management (8700)
- akta.pro primary industry
- Construction & Engineering ERP (Job Costing, Project Controls) (HDAEAEAE)
Keywords
Where COMTEX is headquartered
LocationHeadquarters
- HQ city
- Takaoka
- HQ country
- Japan
- HQ region
- Asia
Offices5 records
Markets served
COMTEX business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations
Revenue model
- SaaS Subscription – Kizuku: Kizuku generates recurring subscription revenue through monthly/annual plans with per-user and per-project pricing. Basic features are free-tiered; advanced modules (electronic ordering, safety management, AI features, worker scheduling, reporting) are paid add-ons. Revenue scales with number of users and optional features activated.
- SaaS Subscription – egaku: egaku operates as a subscription SaaS for housing specification management, typically sold to housing builders and developers. Pricing is per-seat or per-company based on contract terms.
- SaaS Subscription – CareerLink: CareerLink charges recurring fees per registered set (phone number set for a site/project), with monthly usage-based charges tied to the number of worker check-ins. Entry plan offers reduced pricing with basic functionality only. Standard/standard plan includes full feature set.
- SaaS Subscription – MiRAKU: MiRAKU, the remodeling sales support tool, is offered as a subscription SaaS service, launched February 2026.
- Electronic Signature / Timestamp Fees: Kizuku's electronic ordering system charges fees per electronic signature and timestamp applied, particularly for the 当事者型 (party-type) option where individual company certificates are issued and stored.
- Custom Development – Bespoke Systems: COMTEX also develops custom systems for enterprise clients (e.g., Fujijutaku's customized egaku integration with their core system). Development projects range from 2 million to 30 million yen per project.
- Consulting Services – TUMUGU: TUMUGU construction consulting service generates revenue through consulting engagements, with demonstrated profit improvement outcomes (e.g., 150 million yen annual profit improvement for an early adopter).
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Kizuku Free Plan – free tier with basic features |
| Subscription | Annual | Kizuku paid plans – subscription per user/project |
| Subscription | Annual | CareerLink CCUS Entry Plan (かんたんスタートキャンペーン後継) – small-scale CCUS operations |
| Subscription | Monthly | CareerLink Standard Plan |
| Subscription | Annual | CareerLink CCUS Campaign (now ended) – introductory price |
| Subscription | Annual | egaku – subscription per seat/company |
| Subscription | Annual | MiRAKU – subscription |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels9 records
COMTEX product offering
Product offeringCore offering
COMTEX provides cloud-based SaaS products for the Japanese construction industry, including Kizuku (site communication and project management app), egaku (housing specification determination cloud service), CareerLink (CCUS-certified employment history management), MiRAKU (renovation sales support), TUMUGU (construction consulting), and 見積作図SYSTEM (estimation and drawing system for building material manufacturers). The company also delivers custom development and consulting services to enterprise construction clients.
Product overview
COMTEX provides a portfolio of construction and building industry DX software products, centered on a platform-plus-modules architecture. The core offerings include Kizuku (site communication and project management), egaku (housing specification management), Career Link (CCUS workforce management), MiRAKU (renovation sales), and TUMUGU (construction consulting), with Kizuku serving as the primary platform featuring an expanding suite of optional modules including Safety Management, Electronic Ordering, AI Photo Analysis, and AI Assistant. The Estimation and Drawing System targets building material manufacturers as a separate product line. These products share a common focus on digitizing construction site workflows and connecting general contractors, subcontractors, homeowners, and material suppliers through cloud-based platforms.
Differentiator
Problem solved
Functional benefit
Brands
- Kizuku / キズク: 現場コミュニケーションアプリ - Construction site communication and management app for construction industry
- egaku / エガク
- キャリアリンク
- MiRAKU / ミラク
- 見積作図SYSTEM
- TUMUGU / ツムグ
Products and services
- Kizuku (キズク) Construction site communication and project management smartphone app enabling real-time chat-based messaging, photo/document sharing, worker entry/exit tracking, and electronic ordering between general contractors and subcontractors. Used by house manufacturers, builders, and general contractors in Japan.
- egaku (エガク) Housing specification confirmation cloud service for residential coordinators. Enables homeowners to select and confirm housing interior specifications digitally, automatically generating plan sheets and finishing specification tables to eliminate manual data entry errors.
- Career Link (キャリアリンク) CCUS-certified employment history and worker entry/exit management system for the construction industry. Enables small-scale construction sites to accumulate worker career records via unique phone-call registration requiring no card readers.
- MiRAKU (ミラク) Renovation sales support tool enabling on-site estimates and plan proposals during field surveys. Allows sales staff to present estimates and plans instantly at the point of survey to improve closing rates.
- TUMUGU (ツムグ) Practical construction consulting support service leveraging operations and cost management expertise to help construction companies improve profitability. Early adopter Daiga Construction confirmed approximately ¥150 million annual profit improvement.
- Estimation and Drawing System (見積作図SYSTEM) Quotation and drawing system for building material manufacturers, providing a guided selection wizard to create estimates and 3D drawings for products such as system kitchens, bathrooms, stairs, wood decks, and carports without requiring extensive product knowledge.
Quantifiable outcome
- 現場訪問40%減 (40% reduction in site visits) – demonstrated by 雅住建 with 175 renovation projects/year
- +6 more outcomes
Companies that use COMTEX
Customer profileNamed customers15 records
Ideal customer profiles4 records
COMTEX technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration9 records
AI capability4 records
Feature11 records
COMTEX partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered minor and core.
- 勤次郎 (Kinjirushi) / 大塚商会minorIn September 2024, COMTEX, Otsuka Shoji, and Kinjirushi announced a three-party collaboration on the Otsuka Shoji platform. Universal Kinjirushi (勤次郎) labor management system and Kizuku are linked to provide a unified DX solution for construction site labor management.
- FC Apps Direct (Microsoft Marketplace)minorCareerLink was listed on FC Apps Direct (Microsoft's partner platform) in April 2026, expanding reach through Microsoft's partner ecosystem for construction industry digital solutions.
- 了一般社團法人建設業振興基金 (Construction Industry Promotion Fund)corePartnership with the 建設業振興基金 to promote CCUS adoption through the CCUS Simple Start Campaign. The fund co-finances the campaign plan, subsidizing initial costs for small-scale contractors to use CareerLink. COMTEX participated in the fund's data linkage trial for electronic 建退共 filing in September 2024.
- 株式会社大塚商会 (Otsuka Shoji Co., Ltd.)coreCOMTEX signed a sales distribution agreement with Otsuka Shoji Co., Ltd. in October 2021 for the nationwide distribution of Kizuku. Otsuka Shoji leverages its extensive SME IT solutions sales network to promote Kizuku to construction companies across Japan, providing sales, implementation, and customer support resources.
- Microsoft AzurecoreKizuku's cloud infrastructure is built on Microsoft Azure, providing enterprise-grade security and reliability. Referenced as a key security differentiator in Kizuku marketing materials, citing Microsoft Azure's international security standard compliance.
Scale indicators7 records
Recent moves6 records
Expansion highlights7 records
COMTEX competitors and assessment
Company assessmentDirect peers
- ANDPAD (アンドパッド): Japan's largest construction management SaaS platform, offering drawing management, chat, photo management, and project workflow — directly competing with Kizuku in the same Japanese contractor customer base with similar cloud-based mobile-first product design.
- SpiderPlus (スパイダープラス): TSE-listed construction drawing and site management SaaS, with strong photo-based inspection workflows and an enterprise sales motion — directly comparable to Kizuku's photo-documentation and site communication features for Japanese contractors.
- KENTEM (建設システム): Long-established Japanese construction IT vendor offering cost estimation, project management, and construction ERP — competing with COMTEX's Estimation & Drawing System and Kizuku on project controls in Japanese construction firms.
Broad incumbents
- Procore Technologies: Global construction management SaaS incumbent covering project management, quality, safety, and BIM. Although not yet dominant in Japan, Procore is a relevant broader incumbent whose international roadmap and product depth set the ceiling for what enterprise construction SaaS can become.
- Autodesk Construction Cloud: Global incumbent offering BIM 360/ACC, drawing management, and construction collaboration. Relevant as a broad incumbent with overlapping capabilities in document/drawing workflows that COMTEX's Kizuku addresses for Japanese contractors.
- Oracle Primavera: Enterprise-grade construction project and portfolio management software sold to large engineering and construction firms globally. Relevant broader incumbent competing in the same project controls and ERP-adjacent categories as COMTEX.
- Trimble Viewpoint / Trimble Construction: Global construction technology incumbent offering ERP, project management, and field solutions (including the former RIB Software suite). Broad incumbent with overlap on enterprise construction ERP and project controls that COMTEX targets at the mid-market.
Emerging players
- MetaMoJi: Japan-based digital ink and form platform with construction vertical offerings (digital site forms, inspections). Adjacent emerging player competing in the same digital site documentation space as Kizuku's safety and form workflows.
- 建設ドットウェブ (KENDOT): Japanese construction industry portal and SaaS aggregator offering workflow tools for contractors. Emerging ecosystem player in the same Japanese construction IT space that COMTEX targets with its SMB channel motion.
Others
- Proship (プロシップ): TSE-listed provider of construction-industry-specific HR, payroll, and 建設キャリアアップ/CCUS-adjacent software. Comparable as an ecosystem participant in the construction workforce management space where COMTEX's CareerLink operates.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
COMTEX social profiles
Digital presenceCOMTEX compliance and trust
Trust signalCompliance4 records
COMTEX financial estimates
Financial estimateRevenue estimate
Valuation estimate
COMTEX leadership team
Management profileNumber of profiles
Profiles4 records
COMTEX subsidiaries and ownership
Company hierarchySubsidiaries2 records
COMTEX funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
COMTEX 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 COMTEX
What does COMTEX do?
COMTEX provides cloud-based SaaS products for the Japanese construction industry, including Kizuku (site communication and project management app), egaku (housing specification determination cloud service), CareerLink (CCUS-certified employment history management), MiRAKU (renovation sales support), TUMUGU (construction consulting), and 見積作図SYSTEM (estimation and drawing system for building material manufacturers). The company also delivers custom development and consulting services to enterprise construction clients.
Is COMTEX a public or private company?
COMTEX is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was COMTEX founded?
COMTEX was founded in 1989. It employs 51 to 100 people.
Where is COMTEX based?
COMTEX is headquartered in Takaoka, Japan, in the Asia region.
How does COMTEX make money?
Seven revenue lines are on record. SaaS Subscription – Kizuku is the primary driver. The others are saaS Subscription – egaku, saaS Subscription – CareerLink, saaS Subscription – MiRAKU, electronic Signature / Timestamp Fees, custom Development – Bespoke Systems and consulting Services – TUMUGU.
Who are COMTEX's main competitors?
Direct peers on record are ANDPAD (アンドパッド), SpiderPlus (スパイダープラス) and KENTEM (建設システム). Broad incumbents are Procore Technologies, Autodesk Construction Cloud, Oracle Primavera and Trimble Viewpoint / Trimble Construction. Emerging players are MetaMoJi and 建設ドットウェブ (KENDOT). Proship (プロシップ) is listed as an others.
Does COMTEX have an API?
Yes. Kizuku offers a Standard API Integration feature that allows connection with customer core systems. The API enables data exchange between Kizuku and external systems, supporting integration with ERP and other enterprise systems. Details on authentication method, rate limits, and versioning are not publicly specified.
What industry is COMTEX in?
COMTEX's product category is Construction Industry SaaS. Its primary akta.pro industry code is HDAEAEAE, Construction & Engineering ERP (Job Costing, Project Controls). Its NAICS code is 541511 and its SIC code is 7371.