Fathom
Origin
A ‘fathom’ is a measure of length, standardized to 6ft, specifically used to measure the depth of a body of water. As a verb, ‘to fathom’ means ‘exploring a subject very thoroughly’. With its relation to both the sea and the way we approach our work, this word inspired our company name.
Filosophy
At FATHOM we believe that proper preparation together with management of changes are at the core of a successful business. Do standards and protocols used for previous projects still apply? How is safety critical information shared within an organization? How can we best make use of people’s experience, and how can we document this expertise so that future projects can benefit? Asking questions and thorough analyses lead to thoughtful, structured recommendations and advice.
Through our thorough understanding of the industry as a whole, and specific companies with their unique expertise and way of working in particular, we are able to advise you on the fields of Health, Safety, Environment (HSE), Quality Assurance (QA) and Crisis Management. We do not bring quick fixes, but long-term customized solutions that will serve your company well into the future.
Since its foundation in 2012, FATHOM has advised multiple companies in the offshore wind, shipping, offshore oil & gas and harbour business both in the Netherlands and abroad on complex, high-stakes projects. With our extensive knowledge of the industry, we have what it takes to take your business to the next level.
This is what we can do for you: by structuring complex issues, we make your work easier and we help your company reach its highest potential.
Expertise
Health, Safety, Environment (HSE), Quality Assurance (QA) and Crisis Management. Focusing on Offshore Wind, Offshore Oil & Gas, Shipping and Harbor activities.
Project HSE-QA Management/Expert
In this case, Fathom take on the role of HSE-QA Manager or HSE-QA Expert for one or more projects.
Improvement Management
We can advise you on improving specific aspects in your organization, such as Management of Change (MoC), risk assessments and risk management, incident reporting and the lessons learned process.
Management Systems
We develop and implement HSE- and QA Management systems and Crisis Management systems. Tailored to the needs of your company.
Project documentation
We develop custom made project documentation that benefits your project teams and matches your client's requirements.
Tender management
We manage the entire process, from the request to tender to a customized tender document that works as a selling point for your organization.
People
Jan-Hendrik Hensen
Founder
Jan-Hendrik is a highly skilled consultant in the fields of Health, Safety, Environment (HSE), Quality Assurance (QA) and Crisis Management. After gaining experience with of HSE and QA in the maritime, and oil and gas industry within organizations such as Allseas Engineering, Fairstar Heavy Transport, and Dockwise, he founded FATHOM in 2012. Jan-Hendrik is co-founder of Quattor P (www.quattorp.com).
His employment history within the classification society Bureau Veritas makes him very knowledgeable in the field of various marine and offshore norms and legislation. Jan-Hendrik excels at project improvement, safety awareness, Quality Assurance, the design and development of (management) systems and risk management.
FATHOM’s approach is grounded in Jan-Hendrik’s approach: a thorough research process with attention to detail and respect for all sides and stakeholders, resulting in structured products that truly unburden the client and improve their way of working.
introducing...
Roland Numeijer
Network associate
Roland, representing NuMarCo Operations BV, has a maritime as well as naval architect background, having worked in offshore/maritime /salvage related companies for almost 40 years. Roland and Jan-Hendrik started working together during their time at Allseas Engineering, and have collaborated on numerous projects since then, such as the decommissioning project for BOSKALIS – SCALDIS.
Roland is fully acquainted with the current international Maritime & Offshore Operational, HSE and construction legislation, and familiar with all aspects regarding lifting equipment, offshore construction, and inspection activities. He has extensive experience as both QHSE manager and operations manager. This ensures that in complex projects, he can identify what operational issues may affect any QHSE matters and vice versa. With his broad practical knowledge, he adds value to many types of projects. Roland is a Certified Auditor by Ferribi Marine for ISO 9001, 14001, 18001 & IMO ISM and IMCA CIMD.
Network organized
Past Experience
A selection of recent Fathom activities

Seaway 7
Emergency Response documentation for offshore windfarm project.

Boskalis
Project Quality Manager for the Offshore Windfarm Project Ostwind 2 (Baltic Sea).

Scaldis
redesign and implement the Permit to Work and Lockout & Tagout process.

Eneco
Crisis Management and Emergency Response: Eneco Wind Offshore Operation (EWOO)
