SG Enviro

What SG Enviro does

SG Enviro Pte Ltd is a Singapore-headquartered environmental engineering company founded in 2018 by environmental engineer Guah Eng Hock, specializing in industrial wastewater treatment for the Southeast Asian market. The company's core offering is a proprietary Plasma-Nanobubble Advanced Oxidation Process (AOP) that combines patented Non-Thermal Plasma (NTP) generation with a proprietary Nano-Bubble Diffuser, producing reactive oxygen and hydroxyl radicals to break down recalcitrant organic pollutants, remove heavy metals (notably cyanide in mining tailings), and disinfect wastewater with minimal chemical input and reduced sludge generation. Treatment modules are engineered as standardized units deployable from small factory-scale (e.g., 3 m3/day carton-printing lines) up to large petrochemical plants at 6,000 m3/day capacity.

The business model is enterprise field-sales driven and centered on an EPC (Engineering, Procurement and Construction) methodology that converts each engagement into a multi-year project plus an ongoing Operation & Maintenance (O&M) service layer. Revenue streams combine one-time Design & Build fees, recurring O&M contracts, consumable chemical and equipment supply, and Build-Operate-Transfer (BOT) arrangements. Customer base spans oil & gas and petrochemical (Chevron, ConocoPhillips, Total, Pertamina), gold mining (J Resources, Antam), palm oil (PT TELEN), and manufacturing (Trio Packaging) across Singapore, Malaysia, and Indonesia, supported by wholly-owned subsidiaries in each market and a headquarters facility integrating engineering, fabrication yard at Samwoh Smart Hub, in-house laboratory, and O&M fleet.

The company holds ISO 9001, ISO 14001, ISO 45001, and BizSafe Star certifications, won both the Green Innovations: Water Solutions Award and the Overall Outstanding Award at the 24th Singapore Environmental Achievement Awards, and in August 2025 closed its first institutional round — an SGD 8 million (approximately USD 6.2 million) Series A led by Emerald Technology Ventures with participation from SEEDS Capital — to accelerate Southeast Asia expansion and develop advanced membrane systems, smart monitoring, and AI-driven optimization platforms as part of its broader solution portfolio.

Name

SG Enviro

Legal name

SG Enviro Pte Ltd

Website

https://sg-enviro.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

SG Enviro is a Singapore-based environmental engineering company that designs, builds, and operates industrial wastewater treatment plants based on its proprietary Plasma-Nanobubble Advanced Oxidation Process, serving enterprise customers in oil & gas, mining, palm oil, and manufacturing across Southeast Asia.

Ownership category

akta.pro rank

Product category

Industrial Wastewater Treatment Services

NAICS

Sewage Treatment Facilities (221320), Sewage Treatment Facilities (22132), Chemical Manufacturing (325), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

Miscellaneous Chemical Products (2890), Specialty Cleaning, Polishing And Sanitation Preparations (2842)

akta.pro primary industry

Industrial Wastewater & Effluent Treatment Services (BPALAHAD)

akta.pro secondary industries

Advanced/Nutrient Removal (BNR/ENR: N, P) (EUANADAC), Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ), Emission Control & Scrubbing Equipment (Scrubbers, Dust Collectors, Catalytic Systems) (IMAHAEAK)

Keywords

• Industrial wastewater treatment
• Water treatment EPC
• Advanced oxidation process
• Plasma nanobubble technology
• Operation maintenance services

Headquarters

HQ city

Singapore

HQ country

Singapore

HQ region

Asia

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Design & Build (EPC) Services: End-to-end Engineering, Procurement and Construction services for wastewater treatment plants including design, planning, manufacturing, construction, and operation for greenfield and brownfield projects. Revenue generated through project-based contracts with custom solution pricing.
2. Operation & Maintenance (O&M) Services: Total facility management for wastewater plants and waste-to-energy facilities including 24/7 operations, preventive and corrective maintenance, process monitoring, and operational optimisation. Revenue through ongoing service contracts.
3. Chemical Supply: Supply of consumable chemicals for wastewater treatment including pH adjustments, coagulation, flocculation, chemical oxidation, and specialized catalysts for AOP processes. Revenue through product sales.
4. Equipment Supply & Maintenance: Supply and maintenance of equipment involved in wastewater plant systems including spare parts. Revenue through equipment sales and maintenance contracts.
5. Build-Operate-Transfer (BOT): BOT projects where company designs, builds, operates, and later transfers facility ownership to client. Revenue generated through operational period before transfer.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

SG Enviro designs, builds, and operates industrial wastewater treatment plants using its proprietary Plasma-Nanobubble Advanced Oxidation Process (AOP) technology, combining patented Non-Thermal Plasma and Nano-Bubble Diffuser systems to break down complex organic pollutants, remove heavy metals, and disinfect industrial effluent without excessive chemical usage. The company delivers end-to-end Engineering, Procurement and Construction (EPC) services including Build-Operate-Transfer (BOT) arrangements, in-house laboratory testing, and recurring Operation & Maintenance (O&M) services for clients across oil & gas, mining, palm oil, manufacturing, and commercial sectors in Southeast Asia.

Product overview

SG Enviro is an industrial wastewater treatment company offering a comprehensive suite of environmental solutions based on its proprietary Plasma-Nano Advanced Oxidation Process (AOP) technology, which combines Non-Thermal Plasma (NTP) and Nano-Bubble Technology. The company's product portfolio centers on this core technology platform, supplemented by three main service offerings: Design & Build Services (EPC approach for greenfield and brownfield projects including BOT arrangements), Technical Services (in-house laboratory for waste characterisation and testing), and Operation & Maintenance Services. Additional add-on modules include Chemical Supply (treatment chemicals and AOP catalysts) and Equipment Supply & Maintenance. The company also provides specialized solutions for wastewater reclamation, biogas generation/energy recovery, and sludge dewatering. All offerings are delivered through an Engineering, Procurement and Construction (EPC) methodology tailored to Southeast Asian industrial requirements.

Differentiator

Problem solved

Functional benefit

Products and services

• Non-Thermal Plasma (NTP) Technology Patented Non-Thermal Plasma generator that produces reactive oxygen and hydroxyl radicals through electrical discharge to break down recalcitrant organic pollutants, treat high COD/FOG wastewater, and perform de-odorisation, de-colourisation and sterilisation. Delivered as standardised modular units for small to medium factories or as part of larger treatment processes.
• Nano-Bubble Diffuser Technology Proprietary nano-bubble diffuser using a circulation pump and venturi effect to generate nano-bubbles (<200 nm) that remain suspended in water for extended periods, providing continuous oxidation and enhanced mass transfer when used in conjunction with the NTP generator.
• Plasma-Nano Advanced Oxidation Process (AOP) Combined technology platform integrating Non-Thermal Plasma with Nano-Bubble Diffusion for advanced oxidation of industrial wastewater. Plasma charges the nano-bubbles, which are attracted to polar/charged pollutants; as the bubbles collapse they undergo adiabatic compression, generating localised high temperatures and pressures that physically shatter complex chemical bonds.
• Design & Build (EPC) Services End-to-end Engineering, Procurement and Construction services for greenfield and brownfield wastewater treatment projects, including design, planning, manufacturing, construction, and operation. Covers Build-Operate-Transfer (BOT) arrangements where SG Enviro operates the facility for a defined period before transferring ownership to the client.
• Operation & Maintenance (O&M) Services Total facility management for wastewater treatment plants and waste-to-energy facilities, providing 24/7 operations, preventive and corrective maintenance, process monitoring, operational optimisation, and supply of related chemicals and consumables.
• Technical / Laboratory Services In-house treatability and analytical laboratory services including waste characterisation and classification, chemical and physical analysis, environmental site assessment and permitting, and prototyping and benchmark testing using instruments such as ICP-OES and Hach spectrophotometer. Used to validate proposed treatment designs for client projects.
• Chemical Supply Supply of consumable chemicals for wastewater treatment including pH adjustments, coagulation, flocculation and chemical oxidation, as well as specialised catalysts developed for AOP processes suited to different wastewater types.
• Equipment Supply & Maintenance Supply and maintenance of equipment and spare parts for wastewater plant systems to ensure reliable ongoing operation for clients.
• Wastewater Reclamation Systems Systems designed to recycle and reuse treated industrial wastewater, reducing freshwater consumption and supporting circular water economy objectives for industrial clients.
• Biogas Generation & Energy Recovery Anaerobic digestion solutions that transform organic waste (including chicken manure and food waste) into biogas for renewable energy generation, with sludge dewatering support.
• Sludge Dewatering & Drying Solution Treatment solutions for sludge reduction and processing, including dewatering and drying, to minimise secondary waste and reduce sludge handling costs for clients.
• High-Rate Anaerobic/Aerobic Process Biological treatment processes (high-rate anaerobic and aerobic) for removal of organic pollutants, nitrogen and phosphorus from industrial wastewater.

Quantifiable outcome

• Treatment capacity up to 6,000 m3/day (350 m3/hr) for petrochemical facilities
• +3 more outcomes

Named customers8 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Fluence Corporation: Fluence provides decentralised water and wastewater treatment solutions, including packaged plants and EPC services, and is even named in SG Enviro leadership's prior work history. It is the closest like-for-like peer in size, model (EPC + O&M), and emerging-markets focus.
• Gradiant: Gradiant is a US-based industrial water technology company with proprietary treatment platforms (e.g., Carrier Gas Extraction, RO) sold via EPC and recurring service models. Comparable in deploying differentiated proprietary tech to complex industrial wastewater clients globally.
• Organica Water: Organica designs and builds biological wastewater treatment plants using proprietary fixed-film reactor technology, with EPC + O&M delivery similar to SG Enviro. Comparable as a smaller, technology-led player competing against incumbents in municipal and industrial wastewater.
• Waterleau: Waterleau delivers EPC and O&M for industrial and municipal wastewater treatment, with strong presence in food, beverage, and agri-processing in Asia. Comparable in business model, project-based delivery, and focus on emerging-market industrial customers.

Broad incumbents

• Veolia Water Technologies: Veolia is the largest global water and wastewater EPC and services player, serving heavy industry and municipalities worldwide. Competes with SG Enviro on large industrial wastewater tenders, but as a much larger incumbent with a broader portfolio rather than a niche AOP focus.
• Suez Water Technologies & Solutions: Suez supplies water treatment chemicals, equipment, and EPC services to industrial clients globally. Overlaps with SG Enviro across industrial wastewater treatment, O&M, and chemical supply, but operates at a vastly larger scale across multiple segments.
• Kurita Water Industries: Kurita is a Japan-based water treatment chemicals and equipment supplier with strong Southeast Asian operations across semiconductors, petrochemicals, and power. Direct overlap in industrial wastewater chemistry and EPC for O&G and electronics customers in Asia.
• Ecolab: Ecolab's Nalco Water segment sells water treatment chemicals, digital monitoring, and on-site service to heavy industrial customers including O&G. Competes with SG Enviro on chemical programmes and outsourced water management for large industrial accounts.
• Hitachi Zosen Inova: HZI builds large-scale waste-to-energy and sludge treatment plants, including anaerobic digestion for industrial clients. Overlaps with SG Enviro's biogas/energy recovery and sludge dewatering offerings as part of a much broader environmental EPC portfolio.

Emerging players

• Centa Environtech: Centa Environtech is a Singapore-based environmental services firm focused on water and wastewater treatment in the region, and is named in SG Enviro senior management's prior employment. Closest head-to-head competitor for SEA-based industrial wastewater contracts.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sg-enviro-pte-ltd

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds2 records

Investors2 records

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 SG Enviro