大洋産業（株）

Name

大洋産業（株）

Legal name

大洋産業株式会社

Website

https://taiyosangyo.co.jp

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Headquarters

HQ city

Hikone

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Plant Piping (ファクトリープラント配管): Custom pipe fabrication and installation for industrial plants, from basic planning through commissioning and maintenance.
2. Machining and Assembly (機械加工・組立): Custom precision machining, welding (TIG), milling, and assembly services for industrial applications.
3. Water Purification Systems (水浄化分野): Automated liquid processing equipment, membrane filtration devices, and compact water purification units. Includes product registration with Biwako Products for high-performance water purifiers.
4. Vietnam Operations (ベトナム事業): Interpretation/translation services, local partner introductions, site visit coordination, and Vietnamese trainee dispatch for Japanese companies.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

大洋産業株式会社 (Taiyo Sangyo Co., Ltd.) is a Hikone, Shiga-based custom manufacturer with approximately 5 employees operating three business pillars: (1) plant piping for electric, food, and chemical factories; (2) precision machining and assembly of components; and (3) water purification using membrane filtration and proprietary waste-glass foam filter media. The firm supports overseas market entry — particularly into Vietnam — and conducts joint research with Ritsumeikan University.

Product overview

大洋産業株式会社 (Taiyo Sangyo Co., Ltd.) operates as a custom-made, order-based manufacturing company in Shiga Prefecture, Japan. The company provides three core business lines: Plant Piping (from basic planning to trial operation/maintenance), Machining and Assembly (design, processing, assembly, on-site construction), and Water Purification (automated liquid processing equipment with membrane filtration systems). The company also sells Victaulic stainless steel joints and has developed innovative products including small water purification units using waste glass foam filtration media for Vietnam operations.

Differentiator

Problem solved

Functional benefit

Brands

• dew spot: A coworking space operated by the company at its headquarters in Hikone, Shiga.

Products and services

• Plant Piping (プラント配管) Custom plant piping fabrication and installation for electric, food, and chemical factories, including Victaulic grooved joint piping work.

Quantifiable outcome

• Waste glass foam filtration technology successfully stabilizes pH and promotes nitrification in aquaculture drainage treatment
• +2 more outcomes

Named customers2 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

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• 立命館大学 (Ritsumeikan University)coreStrategic or Co-development Partner · 1 January 2019Since 2019, DEWx has maintained joint research and technical guidance cooperation with Ritsumeikan University. The collaboration focuses on developing recycled waste glass foam materials as biological filtration media for low-environmental-impact water purification systems, combining vegetation, soil, and waste glass filter media.
• Vietnam Operations / Vietnam-based ServicescoreStrategic or Co-development PartnerDEWx operates an overseas presence in Vietnam, providing Japanese companies with Vietnamese interpretation/translation, local subcontractor research and introductions, site visit coordination, and Vietnamese trainee dispatch through cooperation with specialized local institutions.
• びわこプロダクツ (Biwako Products)minorStrategic or Co-development PartnerDEWx registered its high-performance water purifier with Biwako Products as part of plastic bottle-free initiatives and resource-circulation water treatment promotion. Products are distributed through this partnership at exhibitions and events.
• しが環境ビジネス推進ネットワーク (Shiga Environment Business Promotion Network)minorStrategic or Co-development PartnerA Shiga Prefecture-led network of industry, government, academia, and citizens promoting environmental business. DEWx participates in press conferences and activities, presenting Vietnam water environment improvement efforts. Activities covered by Chūnichi Shimbun.
• 松金工業株式会社 (Matsukani Kogyo Co., Ltd.) and 丸松木材株式会社 (Marumatsu Mokuzai Co., Ltd.)minorStrategic or Co-development PartnerThree-company joint participation in Shiga Open Factory 2026 event. The three-company collaborative factory tour experience is organized across three factories, with visitors completing a product through the process.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Market position

Weaknesses5 records

Competitive moat4 records

Customer concentration

• Facebookfacebook.com/dewx.taiyosangyo
• LinkedInlinkedin.com/company/%E5%A4%A7%E6%B4%8B%E7%94%A3%E6%A5%AD%EF%BC%88%E6%A0%AA%EF%BC%89

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 大洋産業（株）