Rothwell Water Co.

What Rothwell Water Co. does

Rothwell Water Co., Ltd. is a South Korean wastewater treatment technology company founded in December 2012 (originally as Rothwell Watertech, renamed in August 2016) and headquartered in Hanam-si, Gyeonggi-do. It was established by CEO Kun-ho Lee and co-founder/inventor Peter L. Timpany, both bringing decades of process engineering experience, to commercialize a portfolio of proprietary biological treatment technologies built on a CSBR (Continuous Flow Sequencing Batch Reactor) architecture. The product line includes CSBR for medium-to-large municipal plants, MCSBR (Modified-CSBR) for brownfield capacity expansion of up to 150% without structural changes, CMBR for treated water reuse, and Package CSBR for distributed and rural applications, supported by patented K-5B functional media (trehalose-infused, 30% higher microbial adhesion) and a hydrocyclone degassing device (Patent No. 10-2361659).

The company's core technology is certified as a Korean New Excellent Environmental Technology (NET No. 585, Verification No. 285, granted December 2020), and it holds six granted patents, ISO 9001/14001, Inno-Biz Grade A, and the Excellent Environmental Industry Company designation. It monetizes through four revenue streams: engineering and biological treatment design services for EPC/PPP projects, supply of key equipment and HMI systems with water-quality performance guarantees, exclusive technology licensing (notably with JWIL and Shubam Aqualink in India), and long-term O&M contracts, including a 15-year O&M obligation for the Mumbai Bhandup STP executed through its Indian subsidiary RBIPL established in 2024.

The customer base is split between municipal governments (Anyang City, Goyang City, Brihanmumbai Municipal Corporation, Bolivian Government) and large industrial clients (Samsung Electronics semiconductor facility in Pyeongtaek), with technology deployed at more than 40 facilities across Korea, India, China, Bolivia, Canada, and Venezuela. Go-to-market is enterprise field sales, with Rothwell functioning as a technology supplier and equipment provider inside larger civil-engineering EPC/PPP consortia rather than as a general contractor, and international expansion is driven through subsidiaries and licensing partnerships.

Name

Rothwell Water Co.

Legal name

Rothwell Water Co., Ltd.

Website

https://rothwellwater.co.kr

Company type

Private

Founded year

2012

Operating status

Operating

Short description

Rothwell Water Co., Ltd. is a South Korean wastewater treatment technology company that designs and supplies proprietary biological treatment systems (CSBR, MCSBR, CMBR, Package CSBR) and equipment for municipal governments and large industrial clients worldwide via EPC/PPP, licensing, and long-term O&M contracts.

Ownership category

akta.pro rank

Product category

Wastewater Treatment Services

NAICS

Sewage Treatment Facilities (22132), Pump and Compressor Manufacturing (33391), Water, Sewage and Other Systems (2213)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Pumps & Pumping Equipment (3561), Water Supply (4941)

akta.pro primary industry

Industrial Wastewater Reuse (Cooling/Process/Boiler Feed) (EUANADAM)

akta.pro secondary industries

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ), Design & Engineering for Renewal/Expansion (Pipelines, Pump Stations, Treatment Plants) (EUANALAD)

Keywords

• Wastewater treatment services
• Biological treatment systems
• Sewage treatment design
• Water treatment equipment
• Industrial wastewater solutions

Headquarters

HQ city

Hanam

HQ country

South Korea

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Services: Design and engineering services for expansion and construction of wastewater treatment facilities. Technical economical feasibility evaluation and biological treatment design for EPC/PPP projects.
2. Equipment Supply: Supply of key equipment and HMI (Human Machine Interface) systems required to guarantee water quality performance in treatment plants.
3. Technology Licensing: Exclusive technology provision contracts for applying advanced treatment standards, including partnerships in India with JWIL and Shubam Aqualink.
4. Operations & Maintenance: Long-term O&M contracts such as the 15-year operation and maintenance of the Mumbai Bhandup project through RWIPL subsidiary in India.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels3 records

Core offering

Rothwell Water Co. provides engineering, biological treatment design, and key equipment supply for municipal and industrial wastewater treatment plants. Its proprietary processes — CSBR, MCSBR, CMBR, and Package CSBR — enable new facility construction and capacity expansion of existing plants without structural changes. The company also delivers long-term Operations & Maintenance services through subsidiaries such as RBIPL in India.

Product overview

Rothwell Water Co. offers a comprehensive portfolio of advanced biological wastewater treatment technologies. The core product line includes CSBR (Continuous Flow Sequencing Batch Reactor) for medium and large-scale facilities, MCSBR (Modified-CSBR) for capacity expansion of existing plants, CMBR (Constant level and Continuous flow Membrane Bio Reactor) for water reuse applications, and Package CSBR for small, distributed rural sites. Supporting components include proprietary K-5B Functional Media and HydroCyclone Degassing System. The technologies have been deployed at over 40 facilities worldwide including major projects with Samsung Electronics and India's Mumbai Bhandup STP.

Differentiator

Problem solved

Functional benefit

Brands

• MCSBR: Modified-CSBR New Environmental Technology for expanding wastewater treatment capacity by up to 150%.
• CSBR
• CMBR
• Package CSBR

Products and services

• CSBR (Continuous Flow Sequencing Batch Reactor) Continuous batch advanced sewage treatment technology combining A2O and SBR processes for medium and large-scale municipal and industrial wastewater treatment facilities. Enables underground construction with minimal footprint and continuous inflow/discharge without water level change.
• MCSBR (Modified-CSBR) New Environmental Technology (NET) certified process that expands existing wastewater treatment plant capacity by up to 150% using existing structures without operational disruption, with 6-month construction periods.
• CMBR (Constant level and Continuous flow Membrane Bio Reactor) Membrane-based bioreactor technology developed for treated water reuse applications, with two-phase adaptation for developing and developed countries.
• Package CSBR Compact, modular packaged sewage treatment system for distributed and rural sites such as villages, mountain areas, islands, and construction sites. Features corrugated steel pipe/steel plate materials with ceramic coating (30+ year durability) and 30–3,000 m3/day processing capacity with optional solar power operation.
• Engineering & Design Services for Wastewater Treatment Plants Technical economical feasibility evaluation and biological treatment design services for EPC/PPP expansion and construction projects of wastewater treatment facilities. Includes supply of key equipment and HMI (Human Machine Interface) systems to guarantee water quality performance.
• Operations & Maintenance (O&M) Services

Quantifiable outcome

• Treatment capacity increase up to 150% using existing structures
• +5 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered core.

• Rothwell Business International Pvt Ltd (RBIPL)coreOthers · 1 January 2024Wholly-owned subsidiary established in India (2024) for operations including the 15-year O&M of Mumbai Bhandup project. CIN: U37000PN2024FTC229185.
• JWIL (India)coreOEM/ Whitelabel/ Licensing PartnerExclusive technology provision contract for applying advanced treatment standards for large complex in India, where sewage treatment and reuse are mandatory. JWIL is an Indian partner for technology deployment in India's large building market.
• Shubam Aqualink (India)coreOEM/ Whitelabel/ Licensing PartnerExclusive technology provision and business agreement with Shubam Aqualink for applying advanced treatment standards for large complex in India. Business agreement for small-scale high-standard treatment in India's industrial and commercial buildings.
• Bolivian GovernmentcoreStrategic or Co-development PartnerJoint development of Package CSBR to reflect Bolivia's decentralized and rural conditions. MOU signed to donate 100m3/day treatment plant to Tarija city as public project solving Lake Titicaca eutrophication.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Broad incumbents

• Pentair plc: Global water treatment and flow control company providing equipment for residential, commercial, industrial, and municipal applications. Comparable as a supplier of wastewater treatment components and packaged treatment systems.
• Veolia Environnement: Global water, waste, and energy services giant with extensive wastewater treatment operations worldwide. Comparable to Rothwell as the broad incumbent in municipal/industrial wastewater that Rothwell's CSBR/MCSBR technology competes against on tenders like Bhandup Mumbai.
• Xylem Inc. American water technology company providing pumps, treatment systems, and smart metering. Comparable in offering wastewater treatment equipment and services across municipal and industrial segments, including emerging market deployment.
• Suez SA: French multinational water and waste management company operating water treatment plants and networks globally. Direct competitor on large municipal tenders and operator of comparable biological wastewater treatment assets.
• Kurita Water Industries: Japanese water treatment specialist serving industrial (semiconductor, electronics, chemical) and municipal customers with chemicals, equipment, and services. Comparable in addressing semiconductor wastewater treatment and providing water reuse solutions similar to CMBR.

Direct peers

• VA Tech Wabag: Indian-listed multinational water treatment EPC company headquartered in Chennai with strong presence across municipal and industrial water/wastewater in India, Middle East, and Africa. Most directly comparable to Rothwell given similar project profile and overlapping customer base in India.
• Organo Corporation: Japanese water treatment specialist focused on industrial pure water, wastewater treatment, and water reuse with proprietary membrane and biological technologies. Comparable in industrial wastewater treatment depth and Asian market focus similar to Rothwell's CMBR technology.
• Fluence Corporation: Decentralized wastewater and water reuse specialist providing MABR and packaged treatment solutions for industrial and municipal clients globally. Comparable to Rothwell's Package CSBR offering in serving distributed/rural sites with modular treatment systems.

Regional players

• Thermax Limited: Indian energy and environment solutions provider with significant water and wastewater treatment business serving industrial and municipal clients. Direct competitor in the Indian market where Rothwell has anchored operations via RBIPL.
• Doosan Enerbility (Doosan Heavy Industries & Construction): Korean industrial conglomerate with water treatment business among its environmental portfolio, serving municipal and industrial clients primarily in Korea and Middle East. Comparable as a Korean regional water treatment competitor and a potential EPC partner/competitor to Rothwell.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance15 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 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 Rothwell Water Co.