What Higashi Sangyo Co. does

Higashi Sangyo Co. (株式会社東産業, Azuma Sangyo Co., Ltd.) is a privately held Japanese infrastructure services company headquartered in Yokkaichi, Mie Prefecture, established in 1964. The company operates across five integrated business divisions: water treatment services, infrastructure improvement (sewerage maintenance, civil and pipe engineering, disaster-prevention products), building equipment management, custom housing (under the Amukitto Home brand), and septic tank services. Its primary service territory covers Mie Prefecture and adjacent areas of Aichi and Gifu prefectures, with a target customer base spanning manufacturing and industrial enterprises (food processing, automotive parts), municipal and public infrastructure operators, commercial facilities, and residential customers.

The company's technical differentiation rests on proprietary non-excavation pipe regeneration methods, underground infrastructure inspection using TV camera systems (including the Rovion deployed camera) and ground-penetrating radar for cavity detection, the MR2 method for manhole upper-section repair, and the patented dynamic conductor vacuum evaporation concentration device (Patent No. 4425901) for wastewater volume reduction exceeding 90%. It also markets the GENTI SHOOT2 cartridge system for preventing pump-basin clogging in buildings. The technology stack is engineered-physical rather than software-driven, anchored by licensed regulatory permits (water storage tank cleaning registration, industrial waste collection/transportation) and certified specialist personnel.

Revenue is generated through a hybrid model: recurring maintenance and inspection contracts for water treatment facilities, septic tanks, and building equipment; one-time project-based construction and rehabilitation work; and per-incident emergency response services. Pricing is quote-based with no public disclosure, supported by free on-site consultation and facility surveys. Distribution is exclusively direct via field sales representatives and inside-sales phone/web consultation in the regional market. Marketing relies on a technical blog, social channels (Facebook, Instagram, YouTube), downloadable catalogs/white papers, and direct phone inquiry.

Name

Higashi Sangyo Co.

Legal name

株式会社東産業

Website

https://azuma-mie.co.jp

Company type

Private

Founded year

1964

Operating status

Operating

Headcount range

101–250 employees

Short description

Higashi Sangyo Co. (株式会社東産業) is a privately held Japanese regional infrastructure services company, established 1964 in Yokkaichi, Mie Prefecture, delivering water treatment, underground pipeline inspection and regeneration, building equipment management, septic tank, and custom housing services across Mie, Aichi, and Gifu prefectures.

Ownership category

akta.pro rank

Product category

Water and Wastewater Treatment Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220), Water Supply and Irrigation Systems (221310), Sewage Treatment Facilities (22132)

SIC

Sanitary Services (4950), Water Supply (4941), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Water Treatment Plant Construction (Drinking Water) (IMAFAGAA)

akta.pro secondary industries

Pipework, Calorifier & Heat Exchanger Descaling/Decontamination (BPABAJAI), Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK)

Keywords

• Water treatment services
• Wastewater management
• Infrastructure rehabilitation
• Sewer pipe inspection
• Building facility management

Headquarters

HQ city

Yokkaichi

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Maintenance and Inspection Services (保守点検): Ongoing scheduled maintenance and inspection services for water treatment facilities, sewage systems, and building equipment. Includes regular water quality testing, equipment adjustment, disinfectant replenishment, and condition monitoring.
2. Cleaning Services (清掃): Sludge removal and tank cleaning services for septic tanks, water storage tanks, and grease traps. Charged per service call, with frequency determined by regulatory requirements or contract terms.
3. Construction and Renovation Works (新設・修繕工事): Installation of new water treatment systems, pipeline regeneration, manhole repair, building equipment renewal, toilet remodeling, and infrastructure improvement construction. One-time project-based revenue.
4. Emergency Response Services (緊急トラブル対応): Urgent response for pipe blockages, water leaks, and equipment failures. Charged per incident with call-out fees plus service charges.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

Higashi Sangyo Co. provides comprehensive water treatment, infrastructure improvement, building management, housing, and septic tank services across Mie Prefecture and surrounding Aichi/Gifu prefectures in Japan. The company delivers investigation, diagnosis, new construction, renewal/repair, and ongoing maintenance for water treatment facilities, sewage and drainage systems, manholes, water storage tanks, grease traps, and building equipment. It also designs and builds custom residential homes under the Amukitto Home brand and manufactures/sells proprietary devices such as the GENTI SHOOT2 pump clogging prevention system.

Product overview

Higashi Sangyo Co. (株式会社東産業) is a comprehensive infrastructure services company offering five core business segments: Water Treatment (水処理事業), Infrastructure Improvement (インフラ整備事業), Building Management (建物設備管理事業), Housing Business (住宅事業), and Septic Tank Services (浄化槽事業). The portfolio includes specialized services such as TV camera pipe inspection systems (including Rovion technology), GENTI SHOOT2 pump protection devices, sludge dewatering equipment, wastewater treatment facilities, water storage tank management, grease trap services, and custom home construction under the Amukitto Home brand. The company also provides disaster prevention products including water stop solutions. Services span investigation, diagnosis, new construction, renewal/repair, and ongoing maintenance across water infrastructure, sewage systems, and building facilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Water Treatment Services (水処理事業) Comprehensive water treatment services for industrial and commercial facilities in Mie Prefecture, including water quality improvement, equipment replacement, and operational maintenance for water treatment facilities serving water supply and graywater systems. Covers wastewater treatment facility investigation/diagnosis, new construction, renewal/repair, and ongoing maintenance management. Targets manufacturing and industrial customers requiring regulatory compliance with the Water Pollution Control Act.
• Infrastructure Improvement Services (インフラ整備事業) Sewerage maintenance services including pipe survey, rehabilitation (更生), and repair; civil engineering and pipe work; pipe jacking construction; and disaster prevention product proposals (windbreak, water stop products). Targets municipal infrastructure operators and industrial facility owners in Mie Prefecture requiring underground infrastructure inspection (TV camera, ground-penetrating radar), pipeline regeneration without excavation, and manhole repair using the proprietary MR2 method.
• Building Management Services (建物設備管理事業) Comprehensive building facility management services for commercial properties, shopping malls, office buildings, hotels, hospitals, and social welfare facilities. Includes sanitation management, HVAC/air conditioning work, water storage tank periodic inspection/cleaning/rehabilitation/equipment replacement, water supply and drainage pipe diagnosis/cleaning/rehabilitation/renewal, grease trap cleaning and replacement, barrier-free construction, infection control work, waterproofing, and exterior wall painting.
• Housing Business (住宅事業) Custom home design and construction under the Amukitto Home (アムキットホーム) sub-brand, various renovation services including toilet remodeling (subsidized up to 50% by Yokkaichi City), water leak and clog emergency response, real estate and land sales, and home plumbing repair services targeting residential customers in Mie Prefecture.
• Septic Tank Services (浄化槽事業) Septic tank maintenance services for household septic systems including periodic maintenance inspection (保守点検) with water quality testing, device confirmation, and disinfectant replenishment; tank cleaning (清掃); new installation and replacement (including conversion from single to combined processing systems); and pipe and tank repair services. Targets individual homeowners and residential property managers in Mie Prefecture.
• GENTI SHOOT2 (汚水ポンプ槽詰まり防止装置) Proprietary all-stainless-steel cartridge device installed at the inlet of wastewater pump basins to capture insoluble substances (wet wipes, fibers, vinyl) before they reach the pump, preventing clogging. Features a bottom-opening design enabling easy cartridge maintenance every 3-4 months. Available in cartridge lengths of 800-1700mm with inlet pipe compatibility of 100-350mm. Targets facility managers of commercial buildings, hospitals, and shopping centers.

Quantifiable outcome

• Sludge volume reduction of approximately 98% through dehydration (e.g., 1,000kg of 99% moisture sludge reduces to ~20kg at 50% moisture)
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• グループサイト関連企業 (Group Sites)minorOthersThe company operates affiliated group websites including アムキットホーム (housing), ハウスケット (housing-related), and サンリョウ株式会社 (33ryou.com) which appear to be related companies under the same corporate umbrella rather than formal partnerships.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Kajima Corporation:
• Kurita Water Industries Ltd. Japan's leading industrial water and process treatment solutions provider, offering water treatment chemicals, equipment, and facility management to semiconductor, pharmaceutical, and industrial customers. Overlaps with Higashi Sangyo's industrial water treatment services but operates at much larger scale with chemical and product revenue streams.
• Shimizu Corporation: Major Japanese general construction contractor with extensive water and sewer infrastructure project portfolio including new treatment plant construction and large-scale rehabilitation. Comparable in infrastructure improvement services but as part of a much broader construction portfolio rather than specialized regional services.
• NGK Insulators Ltd. Diversified Japanese ceramics and infrastructure company with a water environment business offering ceramic membrane wastewater treatment systems. Comparable in wastewater treatment but as part of a much larger industrial materials conglomerate with membrane product focus.
• Sekisui Chemical Co., Ltd. Japanese chemical and infrastructure materials company with pipe systems, including water and sewer pipe rehabilitation products. Overlaps with Higashi Sangyo's pipe rehabilitation services through product supply rather than direct service delivery.

Direct peers

• Metawater Corporation: Major Japanese water treatment EPC company formed from the merger of NGK Water and NTT Water. Provides design, construction, and O&M services for water and wastewater treatment plants nationally, directly comparable to Higashi Sangyo's water treatment and infrastructure service portfolio but at much larger scale.
• Organo Corporation: Japanese water treatment plant engineering company providing pure water, wastewater, and reused water systems, plus facility operation and maintenance. Comparable in core activities (water treatment design, construction, and O&M) but with national and industrial customer reach versus Higashi Sangyo's regional focus.
• Takuma Co., Ltd. Japanese plant engineering company building water treatment, sewage, and waste-to-energy facilities for municipal and industrial clients. Comparable in water treatment plant construction and operation services, though typically engaged on larger-scale municipal projects than Higashi Sangyo handles.

Emerging players

• Iseki Poly-Tech Inc. Specialist in trenchless pipe rehabilitation technologies including SPR and other lining methods used in sewer and water main renewal. Highly comparable in pipe rehabilitation and non-excavation repair services that overlap directly with Higashi Sangyo's infrastructure improvement business.

Regional players

• Geberit AG: Swiss-based international market leader in sanitary and pipe systems including installation technology, plumbing, and wastewater drainage for buildings. Comparable in building plumbing/sanitary infrastructure scope but operates globally from Europe rather than competing in Higashi Sangyo's regional Japanese service territory.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCvtLrWSi4zHq9R1N-j-d2_g
• Facebookfacebook.com/azumasangyo.official
• Instagraminstagram.com/azuma.official

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 Higashi Sangyo Co.