CORDER

What CORDER does

CORDER (株式会社CORDER) is a Tokyo-based construction technology company founded in February 2021 that operates a B2B matching and outsourcing platform for construction estimation (積算) in Japan. The company addresses structural labor shortages in Japan's construction estimation departments and the regulatory pressure of the 2024 overtime cap (2024年問題) by providing outsourced estimation services to general contractors (ゼネコン), design offices, and specialist contractors, while simultaneously curating a network of freelance estimation specialists (積算パートナー) who execute the work. Its core product surface consists of three interconnected offerings: the 積算AIプラットフォーム (Estimation AI Platform), which accumulates estimation data and applies AI to improve cost and accuracy; the オンライン積算課 (Online Estimation Office), a comprehensive cloud-based service launched in June 2025 that handles the full estimation workflow from quantity takeoff through contractor quotation comparison and final markup; and 数量拾い代行 (Quantity Surveying Delegation), a focused outsourcing service for quantity takeoff tasks.

CORDER monetizes through project-based fees on estimation services charged to construction company clients, with a transaction-fee/take-rate spread on amounts paid to partner estimators (averaging 322,000 yen per 1,500m² residential project). The company also generates a recruiting funnel for partner estimators through 積算パートナー募集 and runs CORDER Media as a content marketing channel targeting both clients and estimators. Distribution is hybrid: direct inside-sales/concierge matching for enterprise ゼネコン clients, a self-serve partner registration portal for individual estimators, and event-driven lead generation through exhibitions such as JAPAN BUILD 建設DX展. Geographic footprint is domestic Japan only, with headquarters in Shibuya, Tokyo. As of June 2026, the platform reported 5,000+ registered cooperative partner companies, up from 2,000 in June 2025, indicating rapid supply-side scaling.

The company has raised approximately 120 million JPY in cumulative funding, including a 100 million JPY seed round from Incubate Fund in September 2022. It is led by founder and representative director Kento Tanabe. No public revenue, headcount, or valuation figures are disclosed, and the company remains privately held without any announced Series A or subsequent round in the available data.

Name

CORDER

Legal name

株式会社CORDER

Website

https://corder.co.jp

Company type

Private

Founded year

2021

Operating status

Operating

Short description

CORDER is a Tokyo-based construction technology company operating a B2B platform that outsources and digitizes construction estimation (積算) for Japan's general contractors, design offices, and specialist contractors, combining AI tooling with a curated network of 5,000+ freelance estimation specialists to reduce estimation man-hours.

Ownership category

akta.pro rank

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Estimation Outsourcing Service (積算代行サービス): CORDER charges construction companies for providing outsourced estimation services. The company matches their network of estimation specialists (積算パートナー) with construction company clients needing estimation work. Revenue comes from service fees for completed estimation projects.
2. Partner Matching Commission (案件紹介サービス): CORDER matches freelance estimation specialists with construction projects and takes a commission for the matching service. Partners receive project-based compensation averaging 322,000 yen per project while CORDER earns from the margin between partner payment and client charges.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

CORDER provides outsourced construction estimation services to general construction companies (ゼネコン), design offices, and specialist contractors through a cloud-based platform that combines AI technology with a network of freelance estimation specialists. The company handles end-to-end estimation workflows — including quantity takeoff (数量拾い), contractor quotation collection, quotation comparison, and value markup — and reduces estimation man-hours to one-fifth or less of in-house levels.

Product overview

CORDER operates as a construction quantity surveying platform offering three interconnected core services: the 積算AIプラットフォーム (Estimation AI Platform) for AI-driven cost optimization, the オンライン積算課 (Online Estimation Office) as a cloud-based comprehensive estimation support service handling the full workflow from quantity takeoffs to final estimates, and 数量拾い代行 (Quantity Surveying Delegation) for rapid outsourcing of quantity surveying tasks. Additionally, CORDER recruits freelance quantity surveyors through its 積算パートナー募集 service and publishes educational content via CORDER Media.

Differentiator

Problem solved

Functional benefit

Products and services

• Estimation AI Platform (積算AIプラットフォーム) Proprietary AI-powered platform that accumulates construction data and uses artificial intelligence to improve estimation accuracy and optimize costs. It helps construction companies organize their internal estimation data and automate various estimation tasks.
• Online Estimation Office (オンライン積算課) Cloud-based comprehensive estimation support service that handles quantity takeoff (数量拾い), contractor quotations, quotation comparison, and margin setting (値入) as a single outsourced engagement, reducing estimation man-hours to one-fifth or less of in-house levels. Targeted at general construction companies (ゼネコン) and design offices.
• Quantity Surveying Delegation (数量拾い代行) Cloud-based rapid-outsourcing service focused on quantity takeoff (数量拾い) work. Designed for clients who need immediate, high-quality quantity surveying assistance on demand.

Quantifiable outcome

• 積算工数を最大1/5以下に削減 (Reduces estimation man-hours to 1/5 or less)
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature2 records

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/CORDERofficial

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 CORDER