What Tan Delta Systems does

Tan Delta Systems PLC designs and manufactures real-time oil condition monitoring sensors and associated analytical products for industrial and commercial equipment operators. The company is incorporated in England and Wales (founded 2007 as Oil Management Services Ltd, rebranded 2011, listed on AIM of the London Stock Exchange in August 2023 under ticker TAND) and is headquartered in Dinnington, Sheffield, United Kingdom, with a global customer and distributor footprint spanning the UK, Europe, North America, South America, the Middle East, Africa, Asia and Australia.

The company's core technology is the proprietary FSH (Full Spectrum Holistic) system, which analyses the electro-chemical properties of oil in real time at the molecular level to determine the actual condition of both lubricant and equipment, achieving 0.01% sensitivity (100ppm) with TÜV-verified variance below 0.5%. This is delivered through the OQSx-G2 sensor (general industrial/commercial) and the OQH HAZ sensor (Zone 2 certified to ATEX, IECEx, UKEX and CSA Class 1 Div 2 for hazardous environments), packaged across three solution tiers: SENSE1 entry-level sensor kit, SENSE2 display kit with local analytics, and SENSE3 IoT gateway kit with cloud connectivity to Tan Delta Online. Software features include Dynamic Maintenance Optimisation (DMO) for predictive maintenance scheduling and Advanced Fault Detection (AFD) for pre-emptive anomaly alerts. Supporting accessories include gateways, manifolds, cables and the MOT mobile oil tester, with an Oil Database of 966 profiles and a custom Oil Profiling service.

The business model combines one-time hardware sales of sensors and kits with recurring Tan Delta Online cloud subscriptions and Oil Profiling professional services. Tan Delta targets enterprise and mid-market industrial customers across eight verticals — mining, commercial marine, power generation, bioenergy, manufacturing, agriculture, utilities, and transportation — through a hybrid direct enterprise sales motion and a global distributor network supplemented by OEM partnerships and strategic channel relationships (including Shell Marine Products Singapore and Core Arabia in the Middle East). Pricing is quote-based with multi-year contracts, and the company has 11-50 employees.

Name

Tan Delta Systems

Legal name

Tan Delta Systems PLC

Website

https://tandeltasystems.com

Company type

Public

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

Tan Delta Systems PLC designs and manufactures real-time molecular-level oil condition monitoring sensors, IoT gateway kits and predictive maintenance software for industrial operators across mining, marine, power generation, bioenergy, manufacturing, agriculture, utilities and transportation, sold globally through direct enterprise sales, OEM partnerships and a worldwide distributor network.

Ownership category

akta.pro rank

Product category

Industrial Oil Quality Sensors

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Laboratory Analytical Instruments (3826)

akta.pro primary industry

Process Analytical Instrumentation (Gas analyzers, spectroscopy, pH/ORP, conductivity) (IMAGAFAE)

akta.pro secondary industry

Inspection, Integrity & Testing Services (NDT, Well Integrity, Corrosion, QA/QC) (EUALABAO)

Keywords

• Oil condition monitoring
• Real-time oil analysis
• Industrial condition sensors
• Predictive maintenance sensors
• Lubricant monitoring systems

Headquarters

HQ city

Rotherham

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales - Sensors: Sale of oil condition monitoring sensors (OQS and OQH product lines) and associated accessories including cables, manifolds, and display units. One-time hardware purchase with no consumables required.
2. IoT Monitoring Kits: Sale of complete monitoring solutions including SENSE-1, SENSE-2, and SENSE-3 gateway kits that bundle sensors with connectivity, display, and data management capabilities.
3. Oil Profiling Services: Custom oil profiling service to configure sensors for specific oil types not already in the database. Required for optimal sensor performance.
4. Cloud/Data Services: Tan Delta Online cloud solution provides remote monitoring, dashboards, and alerts for monitored assets. Subscription or service-based access to data platform.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels4 records

Core offering

Tan Delta Systems designs and manufactures real-time oil condition monitoring sensors and associated products powered by its proprietary FSH (Full Spectrum Holistic) technology. The company sells OQSx-G2 and OQH (hazardous area) sensors, bundled SENSE1/SENSE2/SENSE3 monitoring kits, a portable MOT field test kit, supporting accessories, and a cloud data platform (Tan Delta Online) for industrial and commercial equipment operators.

Product overview

Tan Delta Systems provides a comprehensive real-time oil condition monitoring ecosystem. The core of the offering is the proprietary FSH (Full Spectrum Holistic) technology embedded in the OQSx-G2 and OQH HAZ oil quality sensors, which deliver molecular-level oil analysis with 0.01% sensitivity. These sensors are packaged into three monitoring solution tiers: SENSE1 (basic sensor kit), SENSE2 (display kit with local analytics), and SENSE3 (scalable IoT gateway kit with cloud connectivity via Tan Delta Online). The MOT (Mobile Oil Test Kit) provides portable field analysis capability. Supporting accessories include gateways, display units, manifolds, and cables. Key software features include DMO (Dynamic Maintenance Optimisation) for predictive maintenance scheduling and AFD (Advanced Fault Detection) for anomaly alerts. Oil profiling services enable custom sensor configuration for any oil type. The company also offers an Oil Database with over 966 oil profiles and integration with industrial protocols (Modbus, CanOpen, J1939) for PLC connectivity.

Differentiator

Problem solved

Functional benefit

Products and services

• OQSx-G2 Oil Quality Sensor Real-time oil condition analysis sensor for all industrial and commercial applications. Uses FSH technology to detect and measure all wear and contamination with 0.01% sensitivity (100ppm). Works with any oil type on any equipment in any environment. Supports Modbus, CanOpen, and J1939 protocols.
• OQH HAZ Oil Quality Sensor Zone 2 certified real-time oil condition analysis sensor for hazardous area industrial and commercial applications. Certified to ATEX, IECEx, UKEX, and Class 1 Division 2 US/C standards. Delivers same analysis capabilities as OQS with explosion protection.
• SENSE3 Gateway Kit Scalable IoT monitoring and analysis solution with modular Gateway Hub system. Supports up to 3 sensors by default, expandable to 16 sensors. Enables data transmission via Cellular, WiFi, and Ethernet to Tan Delta Online cloud platform for live and historic monitoring.
• SENSE2 Display Kit Plug and play local display and analytics kit for any equipment. Includes OQS sensor and OQDe Display Express unit for continuous real-time oil analysis with immediate data visualization. Designed for quick and easy installation without special training.

Quantifiable outcome

• Oil consumption reduced by 30-50% through optimised maintenance scheduling
• +6 more outcomes

Named customers15 records

Segments8 records

Ideal customer profiles7 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability4 records

Feature5 records

Partnerships

Six partnerships are on record, tiered reference, key account, strategic, core and developing.

• GE Power (Historical)referenceStrategic or Co-development Partner · 1 February 2026Regional Sales Director Mohamed Abdulkader previously spent 17 years at GE Power in senior commercial and digital leadership roles. Background in Industrial IoT and Asset Performance Management solutions provides strategic relevance forTan Delta's technology positioning.
• Shell Marine Products Singaporekey accountChannel Partner/ Reseller/ Distributor · 7 October 2025Long-standing distributor agreement for commercial shipping sector. Order worth approximately £120,000 for real-time oil condition monitoring sensors deployed across vessels monitoring auxiliary engines, main propulsion engines, and support systems. Multi-year relationship evaluating technology application in marine environments.
• Core ArabiastrategicChannel Partner/ Reseller/ Distributor · 6 June 2025Strategic distributor partnership covering Middle East region. Announced June 2025 as strategic relationship for market expansion in the Middle East.
• Manufacturing PartnerscoreStrategic or Co-development PartnerCarefully selected manufacturing partners with dedicated production QA department working closely with Tan Delta. Customers supported through systems engineering and mass scale rollout logistics.
• Mining Sector OEMs and VARsdevelopingOEM/ Whitelabel/ Licensing PartnerWorking with world's most respected OEMs and VARs in mining sector. Launching OEM and VAR loyalty discount programmes. Seeking enquiries from OEMs and operators with strong commercial footprint.
• Global Distributor NetworkcoreChannel Partner/ Reseller/ DistributorDistributors on every continent covering all major industrial markets. Accreditation programme for distributors with VAR and loyalty discount options. Enquiry option for becoming a distributor on website contact form.

Scale indicators10 records

Recent moves8 records

Expansion highlights7 records

Direct peers

• SICK AG: German sensor manufacturer with a deep portfolio of industrial fluid/gas sensors, process instrumentation and condition-monitoring solutions. Comparable to Tan Delta in industrial-sensor technology breadth, target verticals (mining, marine, power, manufacturing) and B2B sales model, with broader product scope.
• Parker Hannifin: Major fluid-power and motion-control company offering condition monitoring, fluid-conditioning sensors and filtration diagnostics (SensoNODE, icount) for industrial hydraulics and lubrication systems. Highly comparable to Tan Delta because Parker targets the same industrial fluid-condition monitoring use cases (hydraulics, gearboxes, engines) with sensors + analytics.
• ifm electronic: German manufacturer of industrial sensors and IO-Link connectivity with strong positions in condition monitoring for hydraulics, lubrication and rotating equipment. Directly comparable to Tan Delta as a specialised industrial-sensor vendor selling into the same plant-level reliability and predictive-maintenance applications across multiple verticals.
• HBK (Brüel & Kjær): Specialist in sound, vibration and mechanical-stress measurement with a growing industrial condition-monitoring portfolio. Comparable to Tan Delta as a sensor-led condition-monitoring vendor addressing rotating-equipment reliability and predictive maintenance in industrial and energy markets.
• Kistler Group: Swiss manufacturer of precision sensors and measurement systems for pressure, force, acceleration and process monitoring. Comparable to Tan Delta in high-precision industrial-sensor technology, with overlap in engine and rotating-equipment monitoring applications across similar industrial customers.

Broad incumbents

• SKF: Global leader in bearings and rotating-equipment services with a machine-condition-monitoring portfolio (SKF Enlight Centre, wireless sensors, lubrication management). Highly comparable to Tan Delta as an industrial condition-monitoring vendor targeting similar reliability/maintenance outcomes, but at vastly greater scale and as part of a much broader mechanical-components portfolio.
• ABB: Global industrial automation and electrification company with measurement products, asset-health solutions and digital services for process industries. Comparable as a broad incumbent offering overlapping industrial-monitoring capability in power, mining, marine and oil & gas — Tan Delta competes for similar plant-condition-monitoring budgets.
• Emerson (Rosemount): Industrial-process measurement specialist (Rosemount) with broad instrumentation for pressure, temperature, level, flow and analytical variables, plus Plantweb digital ecosystem. Comparable as a process-analytical instrumentation incumbent in oil & gas, power and chemicals; Tan Delta competes for similar process-monitoring budgets but at far smaller scale.

Emerging players

• Augury: AI-driven machine-health platform combining vibration and temperature sensors with cloud analytics for industrial reliability use cases. Comparable to Tan Delta as an emerging condition-monitoring player targeting similar asset-reliability outcomes in manufacturing and rotating-equipment applications, with a stronger software/AI focus.

Peers

• Shell Lubricants (SmartMonitor / fluid management services): Lubricant major offering condition-monitoring services and digital tools alongside its oils — an adjacent participant in oil-condition monitoring with deep customer relationships. Comparable to Tan Delta in that it sells 'oil health insight' to industrial fleets (often the same end customers), but as a service built on a lubricant franchise rather than proprietary sensor hardware.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/tandeltasystems

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

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 Tan Delta Systems