SulNOx Group

What SulNOx Group does

SulNOx Group Plc is a UK public limited company (AQSE: SNOX, OTCQX: SNOXF), headquartered in London, that develops and commercialises a 100% organic, biodegradable fuel conditioner branded Sulnox Eco. The product is dosed into liquid hydrocarbon fuels at a 1:2000 ratio (1:1000 for petrol), working through emulsification, secondary atomisation, improved lubricity (~17% gain verified by HFRR testing) and detergency to enable more complete combustion, with no engine modifications, retrofits or customer capex. The technology is patented in more than 100 markets and independently verified by Lloyd's Register, SOCOTEC and Cura Terrae, and is certified compatible with the ISO8217 marine fuel standard including FAME blends, neat FAME (B100) and HVO.

Sulnox sells to enterprise fleet operators - primarily shipowners and operators (~100 shipping companies engaged, representing ~6,000 vessels) but also rail (Colas Rail UK), mining and construction, agriculture, logistics, generators, fuel storage and fuel retail customers - through a hybrid direct sales and distribution model. Direct enterprise sales cover customers such as Eastern Pacific Shipping (50+ vessels, four-year 1.2 million-litre agreement), Crystal Cruises and Spring Marine (28 vessels). Distribution is delivered through a global channel with Drew Marine (2,500+ ports) and Nouryon as manufacturer-distributor, plus regional partners across Egypt, Panama, Finland, Pakistan, France, India, Sri Lanka, Greece and Cyprus. The Marine segment is the anchor, targeting compliance-driven demand from IMO CII, EU ETS and FuelEU Maritime regimes alongside c.5% marine and c.8% land fuel savings.

The company reported FY2025/26 revenue of £2,623k, up 134% year-on-year, with volumes up 198%. Revenue is generated principally through repeat unit sales of Sulnox Eco at undislclosed pricing, with no per-customer capex. The company raised £700k in October 2023, £1m in June 2025 and £2m post period-end April 2026 to support commercial expansion and R&D, and operates a Sulnox Innovations R&D division developing biofuel enhancement and oily water reclamation (Sulnox Reclaim) technologies.

Name

SulNOx Group

Legal name

SulNOx Group Plc

Website

https://sulnoxgroup.com

Company type

Public

Founded year

2012

Operating status

Operating

Headcount range

51–100 employees

Short description

SulNOx Group Plc is a UK-listed (AQSE: SNOX) fuel technology company that sells Sulnox Eco, a 100% organic, biodegradable fuel conditioner that improves combustion efficiency in marine, rail, mining, agriculture, generator and logistics applications via emulsification chemistry requiring zero customer capex.

Ownership category

akta.pro rank

Product category

Fuel Additives

NAICS

Basic Chemical Manufacturing (3251)

SIC

Chemicals & Allied Products (2800)

akta.pro primary industry

Alternative Low-Carbon Marine Fuels Bunkering (Methanol, Biofuels, Ammonia, Hydrogen) (TLAHAKAC)

akta.pro secondary industry

Biofuel Distribution & Fuel Marketing (Wholesale/Retail) (EUAAAHAI)

Keywords

• Fuel additives
• Fuel conditioning
• Marine fuel efficiency
• Emissions reduction technology
• Combustion improvement

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sulnox Eco Product Sales: Sulnox generates revenue through the sale of its flagship product Sulnox Eco, a fuel conditioner dosed at 1:2000 ratio (or 1:1000 for petrol). The product is sold directly to major fleet operators and through distribution partners globally. Revenue is driven by volume of product sold, with repeat orders from marine customers representing the primary growth driver.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels6 records

Core offering

SulNOx Group manufactures and sells Sulnox Eco™, a 100% organic, biodegradable fuel conditioner dosed at a 1:2000 ratio (or 1:1000 for petrol) that improves combustion efficiency in all liquid hydrocarbon fuels including diesel, petrol, biofuels, HSFO, VLSFO, MGO/MDO, and HVO. The drop-in solution requires no engine changes, no downtime, and no CAPEX, delivering average fuel savings of 5% for marine and 8% for land applications.

Product overview

SulNOx Group offers a focused product portfolio centred on Sulnox Eco™, a 100% organic fuel conditioner that improves combustion efficiency across all liquid hydrocarbon fuels (diesel, petrol, biofuels, HSFO, VLSFO, MGO/MDO). The product works as a drop-in solution requiring no engine modifications or capital expenditure, delivering average fuel savings of 5% for marine and 8% for land applications. Complementing the core product is Sulnox Innovations, an R&D division developing next-generation solutions for biofuel performance enhancement and fuel reclamation technologies. The company also mentions Sulnox Reclaim, a product for oily wastewater from ships, which received a European patent.

Differentiator

Problem solved

Functional benefit

Brands

• Sulnox Eco™: 100% organic, biodegradable fuel conditioner that improves combustion to lower fuel costs, lower emissions, and protect engines.
• Sulnox Innovations

Products and services

• Sulnox Eco™

Quantifiable outcome

• 5% average fuel savings for marine applications with >300% ROI within weeks
• +7 more outcomes

Named customers7 records

Segments8 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

Partnerships

13 partnerships are on record, tiered regional, core, strategic, flagship and minor.

• DLBC S.A.SregionalChannel Partner/ Reseller/ Distributor · 1 June 2026France's leading distributor of lubricants to agriculture, commercial road fleet, consumer, and industrial segments. Founded in 2006 by former Castrol executives, supplying approximately 14 million liters of product per annum with approximately 850 dealer distribution points across France.
• Skyzone Technologies Pvt LtdregionalChannel Partner/ Reseller/ Distributor · 26 May 2026Pakistan-based distribution agreement targeting Pakistan's diesel genset market where annual consumption exceeds 10 billion liters, driven by electricity supply deficits and grid instability.
• Pan Marine Petroleum ServicesregionalChannel Partner/ Reseller/ Distributor · 9 March 2026Egyptian maritime and energy services provider distributing Sulnox Eco fuel additive products across Egypt, providing access to the Suez Canal region which handles approximately 12% of global seaborne trade.
• Fluid IntelligenceregionalChannel Partner/ Reseller/ Distributor · 1 March 2026Finland-based distribution agreement to supply emissions reduction additives into the fuels sector across Europe, the Nordics, Asia, and the GCC through its industrial and logistics customer base.
• Motor Plus PanamaregionalChannel Partner/ Reseller/ Distributor · 23 February 2026Distribution agreement with Motor Plus Panama to expand sales in the Panama Canal region, enabling products to be stocked and supplied to vessels transiting the canal and regional customers across Central America and the Caribbean.
• Drew MarinecoreChannel Partner/ Reseller/ Distributor · 24 November 2025Long-term global distribution agreement with Drew Marine, a global maritime solutions provider supporting vessel performance, efficiency, and compliance across 2,500+ ports worldwide. With more than a century of technical expertise, Drew Marine delivers products and services that enhance operational reliability and sustainability for commercial fleets.
• NouryoncoreOEM/ Whitelabel/ Licensing PartnerNouryon, a global specialty chemicals leader with more than 8,200 employees operating in over 80 countries, manufactures and distributes Sulnox products globally. Nouryon achieved Gold Ecovadis rating placing them in top 5% of sustainable companies globally.
• McQuilling Partners, Inc.strategicChannel Partner/ Reseller/ DistributorPrivately-owned marine services company formed in 1972, headquartered in New York with offices in Singapore, Athens, Madrid, Dubai, Houston, Lima, Mexico City, Rio de Janeiro, and Mumbai. 180 employees serving clients in shipping, commodity, renewable, and financial services industries.
• Technava S.A.strategicChannel Partner/ Reseller/ DistributorOne of Greece's leading suppliers and contractors of shipbuilding and industrial equipment, representing Sulnox exclusively across Greece and Cyprus. Expanding Sulnox's presence in the globally important Greek maritime sector.
• Seaborne Shipbrokers S.A.strategicChannel Partner/ Reseller/ DistributorPrivately owned shipbroking group with a global footprint with offices in Athens, Singapore, and Shanghai. Supporting Sulnox in expanding its international footprint through global network and long-standing industry relationships.
• PPSregionalChannel Partner/ Reseller/ DistributorIndian distribution partner providing access to over 600 industrial clients across Tamil Nadu, Andhra Pradesh, and Karnataka through existing supply chain serving diesel-heavy sectors including cement, mining, manufacturing, construction, and commercial fleets.
• Eastern Pacific Shipping (EPS)flagshipStrategic or Co-development PartnerOne of the world's largest privately-owned shipping companies, managing a fleet of more than 350 vessels. Conducted eight-month evaluation of Sulnox Eco across multiple vessel types, adopted across 30+ vessels, and became strategic investor. Expanded to four-year deal across 50+ vessels (1.2 million liters), increasing stake to approximately 14%.
• Capital Access GroupminorOthersResearch firm that published November 2025 research note estimating Sulnox's addressable opportunity at approximately 17 million liters per day, equating to a market opportunity of over GBP40 billion.

Scale indicators14 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Infineum: Infineum is a global specialty fuel and lubricant additive company (joint venture of ExxonMobil and Shell), serving marine, automotive, and industrial fuel markets. It is the most direct large-scale peer to Sulnox in fuel combustion and performance additives, and represents the competitive benchmark in the segment.
• Innospec: Innospec is a US-listed specialty chemicals company with a Performance Chemicals division that supplies fuel additives for marine, refinery, and industrial applications. It competes directly with Sulnox in the marine and industrial fuel additive category.
• Afton Chemical: Afton Chemical, a subsidiary of NewMarket Corporation, is one of the largest global fuel and lubricant additive companies, with a strong marine fuel additive portfolio. It is a directly comparable peer in product category, customer base (shipping and fuel retailers), and distribution model.
• The Lubrizol Corporation: Lubrizol (Berkshire Hathaway) is a major specialty chemical additive supplier serving fuels, lubricants, and industrial fluids markets globally. It is a direct competitor in fuel additive chemistry and a benchmark for the additive business Sulnox is building.
• Chevron Oronite: Chevron Oronite is the fuel and lubricant additives arm of Chevron, supplying additives for marine, automotive, and industrial fuels. As a vertically integrated oil major's additive subsidiary, it competes with Sulnox across marine and industrial fuel performance products.

Broad incumbents

• BASF: BASF is one of the world's largest chemical companies with an extensive fuel additives and performance chemicals portfolio serving marine, automotive, and industrial customers. It is a broad incumbent that competes with Sulnox in fuel additive technology, though as part of a much larger chemicals portfolio.
• Clariant: Clariant is a Swiss specialty chemicals company with a portfolio that includes fuel additives, refinery additives, and sustainable chemistry solutions. It is a broad incumbent that overlaps with Sulnox in fuel performance chemistry, particularly for marine and industrial fuels.
• Baker Hughes: Baker Hughes, through its Oilfield Services & Industrial Energy Technology segments, supplies specialty chemicals and emissions-reduction solutions to marine, refining, and industrial customers. It is a broad incumbent in the energy chemicals space that overlaps with Sulnox's industrial fuel efficiency and emissions reduction value proposition.

Emerging players

• Quadrise Fuels International: Quadrise is an AIM-listed emerging player that produces emulsified alternative marine fuel technology (MSAR) to improve combustion efficiency in heavy fuel oils. Its emulsified fuel concept is technologically adjacent to Sulnox's emulsification-based approach, making it a close niche comparable in marine fuel conditioning.

Others

• Wärtsilä: Wärtsilä is a Finnish marine technology company that supplies engines, fuel systems, and decarbonization services for the shipping industry. While not a fuel additive producer, it is a relevant adjacent player in marine fuel efficiency and emissions reduction, and represents the technology ecosystem that Sulnox's product integrates with.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sulnox-group-plc
• Xx.com/SulnoxGroupPLC

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles17 records

Funding overview

Funding rounds3 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 SulNOx Group