Henri Systems Holland

What Henri Systems Holland does

Henri Systems Holland B.V. (HSH) is a privately held Dutch marine instrumentation company founded in 1984 in Zwijndrecht, Netherlands, specializing in measurement, alarm and custody-transfer solutions for cryogenic LPG and LNG cargo on seagoing vessels. The company designs and manufactures float-based level gauges (FTLG 807 for ocean-going carriers; FTLG 808 for inland barges), intrinsically safe high-level and overfill alarm systems (HLA 907 float-type, X-BOB bunker overfill protection, HSH-TOPAS infra-red optical system), and centralized cargo-condition electronics (TankGuard 831, Remote Indicator 821) supporting 4-20 mA, HART and Modbus communications. All hardware is ATEX-certified and approved by the major marine class societies (Lloyds, ABS, DNV, Bureau Veritas), enabling installation on regulated gas carriers. HSH claims market leadership with over 400 gas carriers equipped and approximately three times the installed base of its nearest competitor, inheriting know-how from the ENRAF NONIUS marine branch acquired at founding.

HSH monetizes through proprietary hardware sales for newbuilds and retrofits, recurring lifecycle services — docking maintenance, calibration, and 24/7 emergency response delivered via authorized dealers in Singapore and Korea — spare parts supply, and specialized engineering services including an in-line LNG flow measurement and custody-transfer verification system co-developed with TNO Research Institute. Go-to-market is relationship-driven enterprise sales targeting ship owners, yards and operators of LPG/LNG carriers, LNG bunker vessels and inland gas barges, with all inquiries routed through phone, email and a contact form. The company invests approximately 8% of revenue in R&D and is developing a new LNG bunker-tank sensor with TNO, extending its addressable market into the emerging LNG bunkering segment.

With 11–50 employees, no external funding rounds disclosed, and a privately held B.V. structure (Chamber of Commerce 230 78 789), HSH operates as a focused, niche specialist rather than a venture-backed scale-up, monetizing primarily through shipyard-driven hardware sales, recurring service contracts, and regulated, class-society-mandated safety equipment.

Name

Henri Systems Holland

Legal name

Henri Systems Holland B.V.

Website

https://henrisystems-holland.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Henri Systems Holland designs and services ATEX-certified marine instrumentation — float level gauges, high-level alarms, overfill protection and custody-transfer systems — for LPG and LNG carriers, inland gas barges and LNG bunker operators worldwide.

Ownership category

akta.pro rank

Headquarters

HQ city

Zwijndrecht

HQ country

Netherlands

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Marine Instrumentation Hardware Sales: One-time sales of proprietary level gauges, alarm switches and electronics (FTLG 807, 808, HLA 907, X-BOB, TOPAS, TankGuard 831, Remote Indicator 821) installed on newbuilds and retrofits on LPG and LNG carriers.
2. Lifecycle Service & Maintenance Contracts: Recurring revenue from worldwide technical maintenance, repair, docking, calibration, and ship/vessel vetting inspections delivered by HSH service engineers and authorized dealers in Singapore and Korea, with 24/7 emergency response.
3. Specialized Engineering & Flow Measurement Services: Fees for LNG flow measurement and custody transfer measurement solutions, including in-line LNG transfer measurement system verification and on-board class-approval verification.
4. Spare Parts & Calibration Supply: Sale of replacement parts and provision of calibration certificates/reports during docking or annual servicing, with quotations handled by certified specialists.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels4 records

Core offering

Henri Systems Holland designs, manufactures and services specialized marine instrumentation—primarily float-based level gauges, optical and float high-level/overfill alarms, and centralized cargo-condition displays—installed on LPG and LNG carriers and inland gas barges. The company complements this hardware with worldwide 24/7 maintenance, calibration, docking and vetting services plus LNG custody-transfer flow measurement developed in cooperation with TNO.

Product overview

Henri Systems Holland (HSH) delivers a marine instrumentation portfolio organized into three hardware product families that together address level measurement, safety alarming, and remote cargo monitoring aboard LPG and LNG carriers and inland barges. The Float Type Level Gauges family comprises the FTLG 807 (for large gas and chemical carriers, including large LNG carriers) and the FTLG 808 (designed for inland river tankers with a lightweight aluminum housing). The Level Alarm Switches family covers overfill and high-level protection via the X-BOB Bunker Overfill Protection (with classification society approvals), the float-type High Level Alarm HLA 907, and the HSH-TOPAS Optical Alarm System (infrared optical sensors with fibre-optic capabilities). The Electronics family provides centralized cargo-condition display and remote indication through the Remote Indicator 821 (companion display for HSH/Enraf 806 and FTLG 807 gauges) and the TankGuard 831 (a multi-channel monitor supporting 4-20 mA, HART, and Modbus communications). All hardware products are ATEX-certified for hazardous-area use. HSH complements the products with four service lines: the LNG Flow Measurement Service (in-line calibration and custody transfer research supported by TNO), the 24/7 Emergency Service, the Docking Service, and the Vetting Service.

Differentiator

Problem solved

Functional benefit

Brands

• HSH-TOPAS: HSH-TOPAS Level Alarm System (Optical Alarm System), comprising infra-red optical level alarm sensors, a control station, and a panel for visual and audible alarm presentation.

Products and services

• Float Type Level Gauge 807 (FTLG 807) HSH's flagship float-based level gauge for LPG and LNG carriers, measuring cargo tank levels from small pressurized gas tankers through to large LNG carriers. Built with stainless steel 316 and Invar 36 measuring wire, measuring range 0–37 m, designed for accurate and reliable cryogenic cargo measurement.
• Float Type Level Gauge 808 (FTLG 808) Float type level gauge specifically designed for inland river tankers carrying LPG/LNG, with a lightweight aluminum housing and an easy long-distance readable indicator scale, accuracy DL = ±(2.0 + 0.15L) mm.
• X-BOB Bunker Overfill Protection

Quantifiable outcome

• FTLG 808 accuracy of DL = ±(2.0 + 0.15L) mm and repeatability of ±2 mm at up to 10° inclination
• +5 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Eight partnerships are on record, tiered core — long-running research partner for hsh's most strategic new product line, core — primary apac service and emergency response channel, core — primary korean/northeast asia service and emergency response channel, major — grants general approval and class approvals required for marine market access, major — class approval enabling installation on abs-classed vessels, major — class approval enabling installation on dnv-classed vessels, major — class approval enabling installation on bv-classed vessels and legacy — historical technology lineage and ongoing compatibility.

• TNO (Netherlands Organization of Applied Scientific Research)core — long-running research partner for hsh's most strategic new product lineStrategic or Co-development PartnerTNO supported HSH's research on in-line LNG flow measurement and bunkering. HSH is also developing a new type of LNG sensor for LNG bunker tanks in cooperation with TNO Research Institute.
• HSH dealer in Singaporecore — primary apac service and emergency response channelChannel Partner/ Reseller/ DistributorAuthorized HSH dealer providing worldwide attendance of service-engineers on short notification, 24/7 emergency response, repair and maintenance of HSH-delivered devices in the APAC region.
• HSH dealer in Koreacore — primary korean/northeast asia service and emergency response channelChannel Partner/ Reseller/ DistributorAuthorized HSH dealer providing worldwide attendance of service-engineers on short notification, 24/7 emergency response, repair and maintenance of HSH-delivered devices in Korea.
• Lloyds Register (class society)major — grants general approval and class approvals required for marine market accessImplementation/ SI/ Consulting PartnerX-BOB bunker overfill protection has Lloyds General Approval (doc. No. MDA / 95.E.591) and is approved by Lloyds as a 95% and 98% alarm for international shipping.
• ABS (American Bureau of Shipping)major — class approval enabling installation on abs-classed vesselsImplementation/ SI/ Consulting PartnerABS is listed, alongside Lloyds, DNV and Veritas, as a classification society that has approved the X-BOB bunker overfill protection sensors and associated electronics for use as 95% and 98% alarms.
• DNV (Det Norske Veritas)major — class approval enabling installation on dnv-classed vesselsImplementation/ SI/ Consulting PartnerDNV is listed, alongside Lloyds, ABS and Veritas, as a classification society that has approved the X-BOB bunker overfill protection sensors and associated electronics for use as 95% and 98% alarms.
• Bureau Veritasmajor — class approval enabling installation on bv-classed vesselsImplementation/ SI/ Consulting PartnerBureau Veritas is listed, alongside Lloyds, ABS and DNV, as a classification society that has approved the X-BOB bunker overfill protection sensors and associated electronics for use as 95% and 98% alarms.
• Enraf (legacy Enraf Nonius marine branch)legacy — historical technology lineage and ongoing compatibilityTechnology or IntegrationHSH took over the marine branch of ENRAF NONIUS at its 1984 founding; HSH service teams still carry out servicing, testing and calibration for Enraf/HSH float type level gauges, and the AMTG Remote Indicator 821 supports HSH/Enraf 806 level gauges.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• VEGA Grieshaber: VEGA is a leading supplier of radar and guided-wave radar level sensors for cryogenic and hazardous-area applications, including ATEX-certified sensors used on LNG/LPG carriers — a non-contact alternative competing with HSH's float-based FTLG gauges.
• Endress+Hauser Marine: Endress+Hauser provides radar level gauges, Coriolis flowmeters and tank gauging systems with marine class approvals, used on LNG carriers, bunker vessels and terminals — overlapping HSH's level-measurement and custody-transfer franchise.
• Honeywell Enraf: Honeywell's Enraf business continues the legacy of the original ENRAF Nonius marine branch from which HSH was carved out in 1984; both sell float-type and servo level gauges, tank-gauging electronics and remote indicators for hydrocarbon/LNG tankers and terminals, with HSH/Enraf 806 gauges still cross-compatible via the AMTG Remote Indicator 821.
• KROHNE Marine: KROHNE supplies level, flow and custody-transfer instrumentation for marine and tank storage applications, including ATEX-certified radar/optical level gauges and flowmeters used on LNG/LPG carriers and bunker operations, directly competing with HSH's FTLG and TankGuard lines.
• Emerson Rosemount (Marine): Emerson's Rosemount portfolio includes 5900S radar level gauges and Rosemount flow meters widely specified on LNG carriers and bunker installations; competes head-to-head with HSH on class-approved level measurement and custody transfer.

Broad incumbents

• Kongsberg Maritime: Kongsberg Maritime delivers integrated automation, cargo control and fuel management systems for LNG/LPG carriers, often embedding third-party level and flow instruments; overlaps HSH where TankGuard 831 / Remote Indicator 821 feed into vessel automation.
• Wärtsilä Gas Solutions: Wärtsilä supplies cargo handling, fuel gas supply and gas-handling systems for LNG carriers and LNG-fueled vessels, integrating level gauging, BOG management and bunker transfer measurement — adjacent to HSH's instrumentation but as part of a much broader marine portfolio.
• Siemens Energy (Industrial Measurements): Siemens Energy supplies SITRANS level/flow instrumentation and process automation commonly deployed on LNG infrastructure and vessels; competes with HSH in cargo and bunker measurement as part of a much wider energy/process portfolio.

Regional players

• Chart Industries (Cryogenic): Chart Industries supplies cryogenic tank and transfer equipment, including LNG bunkering systems and associated measurement skids in North America/Europe; adjacent competitor to HSH in the LNG bunker measurement segment rather than a direct float-gauge rival.

Emerging players

• Flowserve (Custody Transfer / Marine): Flowserve provides flow control and measurement solutions for LNG processing and transfer, including marine LNG bunkering skids, partially overlapping HSH's in-line LNG flow measurement and custody-transfer services.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/henri-systems-holland

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Henri Systems Holland