What Dunraven Systems does

Dunraven Systems, founded in 2003 in Dundalk, Ireland, designs and manufactures IoT-connected ultrasonic fuel and liquid tank monitoring systems for fuel distributors, multi-tank organisations, and homeowners with oil heating. The company's product ecosystem consists of two integrated lines: (1) the RMS Delta cloud-based remote monitoring software platform, a fourth-generation multi-tenancy system enabling tank level data access on any web-enabled device with third-party back-office integrations and automated alert outputs; and (2) the Apollo Infinity hardware family of ultrasonic level monitors, offered across multiple wireless connectivity protocols including Sigfox, LoRa, 3G, NB-IoT/CAT-M1, and WiFi. A complementary Apollo Ultrasonic product line serves the local/consumer market with on-tank gauges, overfill prevention, and energy monitoring devices. The company's underlying technology relies on proprietary ultrasonic measurement with FM signal transmission supporting wireless ranges up to 200 metres line-of-sight, alongside battery lives of up to 14 years on certain variants.

Dunraven's business model combines one-time hardware sales of Apollo Infinity devices (invoiced on dispatch with a two-year warranty) with recurring annual subscriptions for the RMS Delta software platform (two-year minimum commitment, auto-renewal billed each January) and connectivity services for cellular variants. Pricing is quote-based and not publicly disclosed. The go-to-market motion is sales-led, with direct engagement of enterprise fuel distributors and multi-tank organisations complemented by online reseller channels (e.g., dunravendirect.com) targeting the homeowner segment. The company's solutions are deployed across 28 countries with tens of thousands of storage tanks under daily monitoring, representing capacity in the tens of millions of litres. Certifications include CE, ROHS, FCC, and PTCRB across various hardware variants.

Ownership has shifted twice in recent years: Tekelek Ltd (Shannon, Ireland) acquired Dunraven in December 2021, and in 2025 Otodata Tank Monitors announced its acquisition of Dunraven Systems and the Delta software platform, with the company now operating as part of the Otodata family. The company's reported employee headcount is 1-10, and Enterprise Ireland appears as a prior funding backer.

Name

Dunraven Systems

Legal name

Dunraven Systems Limited

Website

https://dunravensystems.com

Company type

Private

Founded year

2003

Operating status

Acquired

Headcount range

1–10 employees

Short description

Dunraven Systems designs IoT-connected ultrasonic tank monitoring systems and the RMS Delta cloud software platform for fuel distributors, multi-tank organisations, and homeowners across 28 countries.

Ownership category

akta.pro rank

Product category

Tank Level Monitoring Systems

NAICS

Totalizing Fluid Meter and Counting Device Manufacturing (334514), Other Measuring and Controlling Device Manufacturing (334519), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Totalizing Fluid Meters & Counting Devices (3824), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Gas Utility IoT (Pipeline Monitoring, Smart Regulators, Leak Detection) (EUADAPAL)

akta.pro secondary industries

Environmental Monitoring (Water Leak/Freeze/Gas) Services (HSAHAAAK), Power/battery/energy monitoring for cold chain devices (TLAEALAH)

Keywords

• Tank level monitoring
• Ultrasonic fuel sensors
• IoT tank monitors
• Remote fuel monitoring
• Tank monitoring software

Headquarters

HQ city

Dundalk

HQ country

Ireland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales (Apollo Infinity Devices): Sale of Apollo Infinity remote monitoring hardware devices with 2-year warranty. Hardware is invoiced on day of dispatch. Customer responsible for return costs for warranty repairs.
2. RMS Delta Software Service: Annual subscription for access to RMS Delta remote monitoring platform. Fees billed annually in January with 2-year initial contractual commitment. Service continues with automatic annual renewal unless cancelled.
3. Connectivity Services: Cellular modem data services integrated into Apollo Infinity devices. Includes global connectivity options through various network providers (GSM, LTE-CAT M1, NB-IoT).

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Dunraven Systems designs, manufactures and sells ultrasonic fuel-tank monitoring hardware (the Apollo family of tank-level sensors and Apollo Infinity networked monitors supporting Sigfox, LoRa, 3G, NB-IoT/CAT-M1 and Wi-Fi connectivity) together with RMS Delta, its 4th-generation cloud-based IoT monitoring platform. Customers — primarily fuel distributors, multi-tank operators and residential oil-heating households — use these products to remotely measure fuel levels, predict re-order timing, and integrate tank data via an open API.

Product overview

Dunraven Systems provides a comprehensive IoT tank monitoring ecosystem consisting of two integrated product lines: (1) RMS Delta, a 4th-generation cloud-based remote monitoring software platform that aggregates tank data and enables third-party integrations and automated alerts, and (2) the Apollo Infinity hardware family of remote monitoring devices (offering Sigfox, LoRa, 3G, NB-IoT/CAT-M1, and WiFi connectivity options) that transmit data to RMS Delta. Additionally, the Apollo Ultrasonic local monitoring product line offers local/consumer-grade tank gauges including the Apollo Standard, Apollo Visual, Apollo Visual Bunded, Apollo XT, Apollo Smart (energy monitor), Apollo LD Remote, and Apollo Maxfill, which provide on-site tank level monitoring without cloud connectivity. The remote products enable international multi-tank monitoring across 28 countries, while local products serve individual tank owners and domestic heating oil users.

Differentiator

Problem solved

Functional benefit

Brands

• RMS Delta: Fourth-generation remote monitoring software platform for tank level data, accessible on web-enabled devices, supporting integrations with third-party applications and automated alert outputs.
• Apollo Infinity
• Apollo Ultrasonic
• Apollo Visual
• Apollo Visual Bunded
• Apollo Smart
• Apollo Maxfill
• Apollo LD Remote
• Apollo Ultrasonic XT

Products and services

• RMS Delta Cloud Monitoring Platform Web-based IoT cloud platform that ingests tank-level telemetry from Apollo Infinity monitors and third-party devices, providing multi-tenant dashboards, alerting, billing integration and open API access for fuel distributors and end users.
• Apollo Infinity Sigfox Monitor Apollo Infinity ultrasonic fuel-tank monitor with Sigfox 0G LPWAN connectivity for remote tank-level telemetry where Sigfox coverage exists.
• Apollo Infinity LoRa Monitor Apollo Infinity ultrasonic tank monitor operating over LoRa LPWAN networks for low-power, long-range tank telemetry.
• Apollo Infinity 3G Monitor Apollo Infinity ultrasonic tank monitor transmitting readings over 3G cellular networks where 3G coverage is the best available option.
• Apollo Infinity NB-IoT / CAT-M1 Monitor Apollo Infinity ultrasonic tank monitor using NB-IoT or LTE-M (CAT-M1) cellular IoT connectivity for low-power cellular telemetry.
• Apollo Smart (Wi-Fi Monitor) Apollo Smart is a Wi-Fi connected Apollo Infinity ultrasonic tank monitor for locations with reliable wireless LAN coverage, typically residential and small commercial sites.
• Apollo Ultrasonic Standard Apollo Ultrasonic Standard is a local ultrasonic tank-level monitor with integrated display for at-tank reading of fuel level without network connectivity.
• Apollo Visual Apollo Visual local ultrasonic tank monitor with integrated visual / digital display for on-site tank level indication without connectivity.
• Apollo Visual Bunded Apollo Visual Bunded is a local ultrasonic tank monitor with visual display designed specifically for bunded / double-walled tank installations.
• Apollo XT Apollo XT is an extended ultrasonic tank level monitor for taller or higher-capacity tanks where standard probe length is insufficient.
• Apollo Smart (Local) Apollo Smart (local) is a smart-display local ultrasonic tank monitor that provides on-tank level visibility without mandatory cloud telemetry.
• Apollo LD Remote Apollo LD Remote is an ultrasonic tank monitor with a remote display unit for installations where the tank is difficult to access directly.
• Apollo Maxfill Apollo Maxfill is an ultrasonic tank monitor specifically engineered to detect and indicate maximum fill level to prevent overfilling during refuelling operations.

Quantifiable outcome

• Reduces operational costs by as much as 30%
• +3 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• UK Software ProviderscoreTechnology or IntegrationRMS Delta platform has integrated with leading UK software providers for seamless data exchange and back office system integration. Dunraven Systems is proudly integrated with various leading software providers in the UK.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Tekelek Ltd: Tekelek is an Irish ultrasonic level measurement and remote monitoring specialist based in Shannon, and was Dunraven's acquirer in December 2021. It directly overlaps on ultrasonic tank gauges, ATEX-certified products, and remote smart monitoring for fuel and liquid tanks — making it a parent-level direct peer with comparable product architecture.
• Otodata Tank Monitors: Otodata is a North American manufacturer of award-winning tank monitors, monitoring software, and mobile apps, and acquired Dunraven in 2025. It is the most directly comparable peer in tank-monitoring hardware and SaaS, with overlapping product categories and the parent-of-Dunraven relationship.
• Rochester Sensors: Rochester Sensors is a US-based sensor manufacturer for liquid level measurement across fuel, oil, DEF, and water tanks. Dunraven's RMS Delta support contact email routes to Rochester Sensors ([email protected]), indicating an operational relationship and overlapping product lines in tank level sensing.
• Piusi S.p.A. Piusi is an Italian manufacturer of fluid handling equipment, including fuel transfer pumps, meters, and tank management systems for fuel distributors. It serves the same fuel-distribution customer base as Dunraven with overlapping IoT/administration software offerings (e.g., B.Smart).
• Kingspan Group: Kingspan is an Irish building and energy solutions group whose Watchman/Sentinel product lines include ultrasonic heating-oil tank monitors for residential and small commercial use. This is a directly competitive offering in the homeowner heating-oil monitoring segment Dunraven addresses.
• Tuffa Tanks: Tuffa Tanks is a UK manufacturer of fuel and liquid storage tanks, and offers integrated ultrasonic tank monitoring accessories for its tank products. It is a comparable direct peer in the UK/Ireland fuel storage and monitoring market.

Broad incumbents

• VEGA Grieshaber KG: VEGA is a global specialist in level, pressure, and density measurement instrumentation, including ultrasonic sensors. It operates at a much larger scale across many industrial verticals and represents a broad incumbent competitor in level measurement technology that Dunraven's ultrasonic platform draws from.
• Endress+Hauser: Endress+Hauser is a global leader in industrial process measurement instrumentation, including ultrasonic and radar level sensors used in tanks and vessels. As a broad incumbent, it offers overlapping capabilities at much greater scale across chemicals, oil and gas, and water/wastewater — verticals adjacent to Dunraven's fuel-distribution focus.

Emerging players

• FuelCloud: FuelCloud is a US-based fuel management platform providing tank monitoring, asset tracking, and automated reconciliation for fuel distributors and fleets. It targets the same enterprise fuel-distribution segment as Dunraven with a software-led approach, representing an emerging SaaS-native competitor.

Regional players

• BinMaster: BinMaster is a US-based level measurement sensor and inventory management company specializing in solid and liquid bin/tank monitoring. While primarily serving North American bulk material and agricultural markets, its ultrasonic and radar sensing portfolio overlaps with Dunraven's hardware approach in adjacent verticals.

Market position

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/DunravenSystems
• LinkedInlinkedin.com/company/dunraven-systems-ltd

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dunraven Systems