Daikyo

What Daikyo does

Daikyo Corporation (大京株式会社) is a privately held Japanese Tier-1 OEM manufacturer specializing in cabs, operator seats, and coated sheet metal components for construction machinery. Founded in 1967 as Daikyo Painting Ltd. and incorporated in its current form in 1976, the company is headquartered in Komatsu City, Ishikawa Prefecture, with 532 employees across domestic operations. Its core technology is a one-stop, vertically integrated manufacturing system that combines sheet metal fabrication (including a 1000-ton deep drawing hydraulic press and 3D laser cutting), cationic electrodeposition painting (black and ivory lines up to 1,000 kg capacity), powder coating, robotic welding (10 six-axis welding robots with three-axis positioners), and final assembly, supporting a claimed monthly capacity of 4,000 cabs and operator seats — one of the highest in Japan for this category.

The company's primary customer is Komatsu Ltd., for which Daikyo supplies components to all domestic Komatsu production plants and 8 overseas entities; secondary customers include Komatsu NTC, Komatsu Industries, Daido Kogyo (motorcycle rims), and Murata Machinery. Daikyo's revenue model is hardware sales of OEM components under direct B2B supply contracts, supplemented by contract painting/coating services and sheet metal processing services offered to local firms. Products are made to order and shipped directly to customer production facilities, including Komatsu's overseas operations.

Daikyo operates a global manufacturing footprint through wholly owned subsidiaries: Shandong Cab Co., Ltd. (2003, China), Daikyo Corporation (Thailand) Ltd. (2006), and Daikyo Machinery Shandong Co., Ltd. (2007, the largest facility at 97,731m²), with Daikyo Machinery Changzhou (2011) added in China. The related company Jindai Corporation provides painting/assembly plant construction services and has installed equipment at Komatsu's Awazu Plant and Bangkok Komatsu facilities, deepening operational embeddedness. The company holds JIS Q 9001:2015 and JIS Q 14001:2015 certifications across all domestic plants and has received the Komatsu Quality Control Award (1997) and Komatsu Grand Partnership Award. Pricing is not publicly disclosed and there are no external funding events; the company is privately held under long-standing management.

Name

Daikyo

Legal name

大京株式会社

Website

https://bigtoday.co.jp

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

251–500 employees

Short description

Daikyo Corporation is a privately held Japanese Tier-1 OEM manufacturer of construction machinery cabs, operator seats, and coated sheet metal components, primarily for Komatsu. It operates vertically integrated production in Japan, China, and Thailand with monthly capacity of 4,000 cabs and seats.

Ownership category

akta.pro rank

Product category

Construction Machinery Component Manufacturing

NAICS

Construction Machinery Manufacturing (33312), Agriculture, Construction, and Mining Machinery Manufacturing (3331)

SIC

Construction Machinery & Equip (3531), Fabricated Plate Work (Boiler Shops) (3443)

akta.pro primary industry

Steel Plate, Sections & Welded Assemblies (IMADACAD)

Keywords

• Construction machinery components
• OEM parts manufacturing
• Operator cab assemblies
• Cationic electrodeposition coating
• Sheet metal fabrication

Headquarters

HQ city

Komatsu

HQ country

Japan

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D

Revenue model

1. Construction Machinery Parts Manufacturing: Design, manufacture, and supply of construction machinery cabs, operator seats (for hydraulic excavators, bulldozers, wheel loaders, dump trucks), crawler carriers, towing tractor cabs, radiators, and various attachments. Products are sold directly to Komatsu as OEM components.
2. Painting/Coating Services: Cationic electrodeposition coating, powder coating, and specialty painting services for construction machinery components. Also offers rental hanger system for local sheet metal companies.
3. Sheet Metal Processing: Sheet metal fabrication services including laser cutting, press braking, welding, and assembly of exterior parts and cab structures for construction machinery.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Daikyo Corporation is an integrated OEM manufacturer of construction machinery cabs, operator seats, and exterior components. It performs the full production process in-house — from sheet metal fabrication (laser cutting, 1,000-ton deep drawing pressing), robotic welding, and cationic electrodeposition painting/powder coating, through to final assembly — supplying primarily Komatsu's domestic plants and 8 overseas entities, with a monthly production capacity of 4,000 cab and operator seat units.

Product overview

Daikyo Corporation is a construction machinery parts manufacturer specializing in cabs, operator compartments, and components for heavy equipment manufacturers (primarily Komatsu). The company operates an integrated manufacturing system spanning sheet metal processing, cationic electrodeposition coating/powder coating, and final assembly. Its core product portfolio consists of seven main construction equipment types (wheel loaders, large dump trucks, large hydraulic excavators, medium hydraulic excavators, bulldozers, towing tractors, and crawler carriers) and multiple sub-components including driver's seat units, engine hoods, control cabinets, and radiators. The company also provides contract painting and coating services to local sheet metal businesses through a rental hanger system.

Differentiator

Problem solved

Functional benefit

Products and services

• Wheel Loader Cabs and Components (ホイールローダー) Manufacturing of cabs and structural components for wheel loaders used to scoop soil and rocks and load them onto dump trucks. Supplied to construction machinery OEMs.
• Large Dump Truck Cabs and Components (大型ダンプトラック) Manufacturing of cabs, control cabinets, and operator compartments for off-road dump trucks used in large-scale construction sites and mining operations to transport soil and rocks.
• Large Hydraulic Excavator Cab Assemblies (大型油圧ショベル) Manufacturing of cab assemblies for large hydraulic excavators used to dig large rocks from mountains for road construction materials.
• Medium Hydraulic Excavator Cab Assemblies (中型油圧ショベル) Manufacturing of cab assemblies and operator seat units for medium hydraulic excavators used for foundation work, road construction, and underground utility installation.
• Bulldozer Cab Assemblies and Covers (ブルドーザー) Manufacturing of operator cabs, engine side covers, battery covers, and valve covers for bulldozers used to shave ground, cut through mountains, and level uneven terrain.
• Towing Tractor Cabs (トーイングトラクター) Manufacturing of cabs for towing tractors used to pull airplanes at airports.
• Crawler Carrier Cabs (クローラーキャリア) Manufacturing of cabs for crawler carriers featuring a 360-degree rotating top section that always faces forward during operation, effective in narrow and rough terrain conditions.
• Cationic Electrodeposition and Powder Coating Services Contract coating services including cationic electrodeposition coating, powder coating, and specialty painting for construction machinery parts, delivering automotive-level paint quality with rust prevention. Also offers rental hanger system for local sheet metal companies.
• Sheet Metal Processing Services (板金加工) Contract sheet metal fabrication using 1,000-ton deep drawing hydraulic press and 3D laser processing machines for exterior parts and cab structures.
• Assembly Services (組立) Manufacturing assembly services with monthly production capacity of 4,000 units, including cab assembly, floor assembly, and component assembly lines.

Quantifiable outcome

• Monthly production capacity of 4,000 construction machinery cabs and seats
• +2 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Nine partnerships are on record, tiered minor, core and flagship.

• Daikyo Machinery Changzhou Co., Ltd. (大京機械(常州)有限公司)minorStrategic or Co-development Partner · 1 January 2011Established in 2011 in Changzhou, China. Expansion of Daikyo's China manufacturing footprint alongside the Shandong facility.
• Daikyo Machinery Shandong Co., Ltd. (大京機械(山東)有限公司)coreStrategic or Co-development Partner · 1 January 2007Established in Shandong, China in November 2007 as Daikyo's third overseas plant. Site area 97,731m² with 47,662m² building area. Capital of 194.28 million CNY, 100% owned by Daikyo. Functions as the largest production capacity facility in China and serves as cross-sourcing base for the entire Daikyo Group.
• DAIKYO CORPORATION (THAILAND) LTD.coreStrategic or Co-development Partner · 1 January 2006100% owned subsidiary established in Thailand in 2006 at Amatanakorn Industrial Estate. Operates sheet metal to painting and assembly production lines. Products supplied to Thailand domestic market, America, and Europe. Equipped with large cationic electrodeposition painting facility.
• Shandong Cab Co., Ltd. (山東彩橋CAB有限公司)coreStrategic or Co-development Partner · 1 January 2003Established in China in 2003 as part of Daikyo's overseas expansion strategy. Operates electrodeposition painting, powder coating, and solvent coating lines for construction machinery components. Serves as a key manufacturing base for Komatsu Indonesia and other regional customers.
• Jindai Corporation (株式会社仁大)coreStrategic or Co-development PartnerRelated company providing painting and assembly plant construction services. Offers total package from production line design to equipment selection and delivery. Also handles special coating processes at customer factories. Since 2020, offers antiviral coating services as COVID-19 response. Operates Imae Factory in Komatsu.
• Komatsu Ltd. (小松製作所)flagshipOEM/ Whitelabel/ Licensing PartnerPrimary customer and strategic partner. Daikyo supplies construction machinery cabs, operator seats, and components to all Komatsu domestic production plants and 8 overseas entities. Awarded Komatsu Quality Control Award and Komatsu Grand Partnership Award.
• Komatsu Awazu PlantcoreOEM/ Whitelabel/ Licensing PartnerJindai Corporation installed hot-air circulation dry painting booth and motor grader painting booth at Komatsu's Awazu Plant.
• Bangkok Komatsu Co. (BKC)coreOEM/ Whitelabel/ Licensing PartnerJindai Corporation constructed main assembly line, complete machine painting line, and construction machinery parts painting line at BKC facility in Thailand.
• Komatsu Indonesia (KI)coreOEM/ Whitelabel/ Licensing PartnerShandong Cab Co., Ltd. provides electrodeposition painting services to Komatsu Indonesia operations.

Scale indicators8 records

Recent moves16 records

Expansion highlights5 records

Emerging players

• Takeuchi Manufacturing: Japanese compact construction machinery manufacturer producing excavators and track loaders. Comparable as a smaller OEM whose cab and component needs could be served by Tier-1 suppliers like Daikyo.
• Komatsu Ltd. Daikyo's flagship customer and the largest construction machinery OEM in Japan. Included as a peer because Daikyo's strategic tier-1 customer relationship is the defining feature of its business and similar supplier relationships exist for other OEMs.
• Nabtesco Corporation: Japanese manufacturer of precision equipment including hydraulic components for construction machinery. Comparable as a Japanese Tier-1 supplier to construction machinery OEMs with advanced manufacturing capabilities.
• Topy Industries: Japanese manufacturer of steel products including wheels and construction equipment components. Comparable as a domestic Japanese Tier-1 supplier to construction machinery and industrial OEMs with sheet metal capabilities.

Broad incumbents

• Hitachi Construction Machinery: Major Japanese construction machinery OEM producing hydraulic excavators, dump trucks, and crawler carriers. Comparable to Daikyo's customer base, though operates as a fully integrated OEM rather than a Tier-1 component supplier.
• Terex Corporation: US-based diversified construction equipment manufacturer producing aerial work platforms, materials processing, and cranes. Comparable as a global OEM for outsourced component manufacturing.
• Sumitomo Construction Machinery: Japanese construction equipment manufacturer focused on hydraulic excavators and asphalt finishers. Comparable as a domestic Japanese OEM that could purchase cabs and sheet metal components from suppliers like Daikyo.
• Kobelco Construction Machinery: Japanese construction machinery OEM producing hydraulic excavators and crawler cranes. Similar end-product portfolio to what Daikyo supplies cabs/components for, making it a comparable OEM customer profile.
• Yanmar Construction Equipment: Japanese manufacturer of compact construction machinery and industrial equipment. Comparable as a potential OEM customer for cab assemblies and components in the construction machinery segment.
• Manitowoc Company: US-based construction equipment manufacturer producing cranes and lifting equipment. Comparable as a global construction machinery OEM with outsourced component sourcing needs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCM-z91PEeeFbaz1OsjK8i4g

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries5 records

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 Daikyo