Chuo Group Co.
Chuo Group Co. is a Niigata-based Japanese professional services firm providing one-stop support — design, 3D surveying, third-party inspection, and post-handover maintenance — to SMB construction operators, with outsourced production via a three-office Vietnamese subsidiary.
- Company typePrivate
- Founded1985
- HeadquartersNiigata, Japan
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Chuo Group Co. does
Chuo Group Co. (株式会社中央グループ) is a Niigata-headquartered Japanese professional services firm that provides one-stop support to construction operators across the residential building lifecycle. Its five service lines cover design support (wooden two-story residential drafting, structural and energy-efficiency calculations, and regulatory applications), 3D point cloud site surveying, scheduled post-delivery inspection (1/2/5-year cycles), third-party quality inspection during construction (up to 13 staged checks with photographic documentation), and ongoing inspection/maintenance planning for existing homes. The company serves primarily SMB customers — regional housemakers, local builders, and design offices — selling quote-based professional services rather than packaged products, with no publicly disclosed price list.
The firm is differentiated by proprietary technology assets, including a 'connectors' information management system that centralizes drawings and inspection records, 3D laser scanning workflows that produce LAS/E57 point cloud data for pre-design site visualization, and integration with the ARCHITECT RAIL platform for post-handover inspection continuity. These capabilities support a standardized 13-stage third-party inspection methodology that emphasizes transparency via photographic evidence. The company delivers these services through a Japan footprint of three offices (Niigata HQ, Tokyo, Kirishima/South Kyushu) supplemented by a nationwide partner (NEXUS) network, while a wholly-owned Vietnamese subsidiary, Precision Advance Drafters (PAD), operates three production sites (Ho Chi Minh City, Danang, Banmethuot) to handle outsourced design and calculation work.
Chuo Group generates revenue through project-based professional services engagements with construction operators; pricing is individually quoted per engagement rather than published. The company is a subsidiary of Mitra Group Co., Ltd. (formerly Escrow Agent Japan Co., Ltd., renamed June 2026), with no public listing, no disclosed venture funding, and no named enterprise customers. Its go-to-market combines direct sales from each Japan office, partner referrals, joint seminars with construction software platforms (notably ANDPAD), and ongoing inbound from construction operators responding to regulatory drivers such as BELS, energy efficiency compliance, and the 4号特例 reform.
Chuo Group Co. firmographics
Firmographics- Name
- Chuo Group Co.
- Legal name
- 株式会社中央グループ
- Website
- https://chuo-g.jp
- Company type
- Private
- Founded year
- 1985
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Chuo Group Co. is a Niigata-based Japanese professional services firm providing one-stop support — design, 3D surveying, third-party inspection, and post-handover maintenance — to SMB construction operators, with outsourced production via a three-office Vietnamese subsidiary.
- Ownership category
- akta.pro rank
Chuo Group Co. industry classification
Industry- Product category
- Architectural Construction Support Services
- NAICS
- Building Inspection Services (541350), Architectural, Engineering, and Related Services (5413)
- akta.pro primary industry
- Construction Management (Agency/Owner’s Rep) (IMAFAAAC)
- akta.pro secondary industries
- Construction Program Management (Multi-site/Portfolio) (IMAFAAAF), Residential Design-Build & Renovation-Integrated Builders (IMAFABAE)
Keywords
Where Chuo Group Co. is headquartered
LocationHeadquarters
- HQ city
- Niigata
- HQ country
- Japan
- HQ region
- Asia
Offices6 records
Markets served
Chuo Group Co. business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Supply Chain
Revenue model
- 設計サポート事業: 木造住宅（木造2階建）の設計・申請業務（建築確認申請、長期優良住宅申請、構造計算、省エネルギー計算等）をサポートし、手数料・代行費用を得ている。CADによる図面作成や法規チェック等を含む。
- 点検代行事業: 住宅引き渡し後の定期点検（1年・2年・5年点検など）を代行するサービス。建具・設備機器の動作確認、各種不具合チェック等を実施し報酬を得ている。
- インスペクション事業: 既存建物の劣化状況・不具合を第三者的視点から診断・調査し、維持保全計画の策定やメンテナンス提案を行うサービス。connectorsシステム連携点検も含む。
- 第三者検査事業: 住宅建築の着工〜完工まで第三者の立場から品質チェックを行う検査サービス。最大13回の検査を実施。
- 3D点群敷地調査・役所調査: 申請前の敷地の現況（高低差・越境・接道条件等）を3D測量により可視化し、調査レポートとして納品するサービス。
- ベトナム子会社PADによる設計アウトソーシング: 子会社Precision Advance Drafters Co., Ltd.（PAD）がベトナムで日本向けの住宅設計業務（申請図面・書類作成、省エネルギー計算、構造計算、点群作図等）を担い、低コスト高效な生産体制を構築。
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Other | 料金体系は公開されておらず見積もり制 |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels4 records
Chuo Group Co. product offering
Product offeringCore offering
Chuo Group Co. provides outsourced architectural and construction-support services for Japanese builders and design offices. Its core activities include inspection agency work handling building confirmation application paperwork, third-party inspection (housing and building performance evaluations), residential inspection services, design drafting support, and 3D point cloud site surveying using laser measurement technology. The company also operates a Vietnam-based design subsidiary (PAD) to deliver outsourced drafting and 3D modeling work to its Japanese clients.
Product overview
Chuo Group Co. operates as a total support provider for construction operators, offering five integrated service lines: (1) Inspection Agency Service handles post-delivery inspections at 1/2/5-year intervals; (2) 3D Point Cloud Site Survey combines on-site 3D laser scanning with government research to visualize site conditions before design; (3) Design Support Service provides outsourced residential design including architectural drawings, structural/energy calculations, and application support; (4) Third-party Inspection Service conducts objective quality checks throughout construction with up to 13 inspections; and (5) Inspection Service diagnoses existing residential building conditions using third-party evaluation. These services are interconnected through the company's connectors information management system and supported by a Vietnam-based subsidiary for efficient design operations.
Differentiator
Problem solved
Functional benefit
Products and services
- Inspection Agency Service
Quantifiable outcome
- 着工〜完工まで最大13回の段階的検査で品質の透明性を確保
- +2 more outcomes
Companies that use Chuo Group Co.
Customer profileNamed customers1 record
Segments3 records
Ideal customer profiles1 record
Chuo Group Co. technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Chuo Group Co. partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core, minor and moderate.
- 株式会社アンドパッド（ANDPAD）coreクラウド型建設プロジェクト管理サービス「ANDPAD」を手がける株式会社ンドパッドと中央グループが、住宅業界の生産性向上・工事品質の向上を目的として協業を開始。品質管理におけるDX推进として，中央グループの検査・点検サービスとANDPADのプロジェクト管理システムを連携させ、建築事業者へワンストップサービスを提供している。ANDPAD×中央グループとして共同セミナー（住宅品質向上セミナー）を举办。
- Precision Advance Drafters Co., Ltd.（PAD）core中央グループの100％出资子会社（VED子会社）。ホーチミン市（2023年10月設立）、ダナンオフィス（2025年7月開設）、バンメトートオフィス（2025年11月開設）の3拠点で、日本国内の住宅設計に関わる各種業務（申請図面·書類作成、省エネルギー計算、構造計算、点群作図等）のアウトソーシングを担当。生産性とコストの両面で高い成果を上げている。
- 株式会社アートフォースジャパンcore地盤改良事業を行うアートフォースジャパン、的土地調査測量・設計サポートを行う中央グループ及U住宅金融事業を行う日本モーゲージサービス株式会社を親会社とするMSJグループは、住宅建築事業者のサポートを目的として、住宅着工前の各種調査サービスをパッケージ化して提供し、住宅建築分野のDX化に取り組む。
- 日本モーゲージサービス株式会社minor住宅金融事業を行う日本モーゲージサービス株式会社がMSJグループの一員として中央グループ 및アートフォースジャパンと連携し、住宅建築事業者向けサポートパッケージサービスを提供。
- ARCHITECT RAIL（株式会社未公表）moderateARCHITECT RAILシステムと連携したインスペクションサービスを提供。引き渡し後段階において、オプションサービスとして定期点検サービスを展開。中央グループのinspection-serviceページ上でARCHITECT RAILユーザーの継続サポートとして紹介されている。
Scale indicators4 records
Recent moves16 records
Expansion highlights5 records
Chuo Group Co. competitors and assessment
Company assessmentDirect peers
- ANDPAD: Japan's leading cloud platform for residential construction project management, serving house builders with quoting, scheduling, photo, and document workflows. Overlaps with Chuo in serving the same builder base; partner rather than pure competitor, but also adding inspection-adjacent features that could compete with Chuo's third-party inspection workflows.
- 日本ERI (Nippon ERI): One of Japan's largest designated building confirmation and inspection bodies, providing building confirmation, structural calculation review, housing performance evaluation, and inspection services to builders and developers. Directly comparable to Chuo's third-party inspection and building confirmation application support businesses.
- ジャパンホームシールド (Japan Home Shield): Provides housing performance evaluation, ground/subsurface survey, and warranty-backed inspection services for detached housing builders. Comparable to Chuo in serving residential builders with structured inspection and performance evaluation services.
- ハウスジーメン (House Gmen): Housing performance evaluation and inspection body for detached and multi-family residential, including long-term quality housing certification and warranty inspection. Comparable as a residential-focused third-party inspection and certification peer.
- 確認検査機構 (Kakunin Kensa Kikou): Designated building confirmation and inspection body offering building confirmation, mid-stage inspection, and completion inspection services. Directly comparable to Chuo's building confirmation application support and third-party inspection services for residential and small commercial construction.
Broad incumbents
- 構造計画研究所 (KKE): Established engineering consulting firm providing structural analysis, building simulation, and technical consulting across construction, manufacturing, and communications. Overlaps with Chuo's design support and structural calculation services but operates at a much broader and more enterprise scale.
- 国際航業 (Kokusai Kogyo): Major Japanese surveying, geospatial, and engineering consulting firm with strong capabilities in land surveying, 3D measurement, and infrastructure consulting. Comparable to Chuo's 3D point cloud site survey and pre-design land investigation services, with broader geographic and infrastructure reach.
- Bureau Veritas Japan: Global testing, inspection, and certification (TIC) group's Japan operations, providing building and infrastructure inspection services to commercial and industrial clients. Comparable as an inspection services incumbent, though operating at much larger scale and less focused on residential wooden housing than Chuo.
Emerging players
- スパイダープラス (SpiderPlus & Holdings): Construction-tech SaaS provider offering photo-based inspection, document, and workflow tools to contractors and infrastructure operators. Adjacent competitor to Chuo's inspection services, with growing overlap in construction-stage quality documentation.
- Photoruction: Construction-focused SaaS that centralizes site photos, drawings, and inspection data for general contractors and subcontractors. Adjacent peer in digital construction documentation, increasingly competing with traditional inspection services for builder workflow mindshare.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Chuo Group Co. financial estimates
Financial estimateRevenue estimate
Valuation estimate
Chuo Group Co. leadership team
Management profileNumber of profiles
Profiles2 records
Chuo Group Co. subsidiaries and ownership
Company hierarchySubsidiaries1 record
Chuo Group Co. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Chuo Group Co. 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 Chuo Group Co.
What does Chuo Group Co. do?
Chuo Group Co. provides outsourced architectural and construction-support services for Japanese builders and design offices. Its core activities include inspection agency work handling building confirmation application paperwork, third-party inspection (housing and building performance evaluations), residential inspection services, design drafting support, and 3D point cloud site surveying using laser measurement technology. The company also operates a Vietnam-based design subsidiary (PAD) to deliver outsourced drafting and 3D modeling work to its Japanese clients.
Is Chuo Group Co. a public or private company?
Chuo Group Co. is a private company. It is classified as corporate owned and is currently operating.
When was Chuo Group Co. founded?
Chuo Group Co. was founded in 1985. It employs 51 to 100 people.
Where is Chuo Group Co. based?
Chuo Group Co. is headquartered in Niigata, Japan, in the Asia region.
How does Chuo Group Co. make money?
Six revenue lines are on record. 設計サポート事業 is the primary driver. The others are 点検代行事業, インスペクション事業, 第三者検査事業, 3D点群敷地調査・役所調査 and ベトナム子会社PADによる設計アウトソーシング.
Who are Chuo Group Co.'s main competitors?
Direct peers on record are ANDPAD, 日本ERI (Nippon ERI), ジャパンホームシールド (Japan Home Shield), ハウスジーメン (House Gmen) and 確認検査機構 (Kakunin Kensa Kikou). Broad incumbents are 構造計画研究所 (KKE), 国際航業 (Kokusai Kogyo) and Bureau Veritas Japan. Emerging players are スパイダープラス (SpiderPlus & Holdings) and Photoruction.
Does Chuo Group Co. have an API?
No public API is recorded for Chuo Group Co..
What industry is Chuo Group Co. in?
Chuo Group Co.'s product category is Architectural Construction Support Services. Its primary akta.pro industry code is IMAFAAAC, Construction Management (Agency/Owner’s Rep), with a secondary code of IMAFAAAF, Construction Program Management (Multi-site/Portfolio). Its NAICS code is 541350.