Operational foundation
Commercial diving, marine and defence operations built the practical foundation: understanding the work, the equipment and the decisions made under pressure.
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The person behind the assurance
Authority earned
in the operation.
Steve Marrufo founded CDAS to combine operational experience, professional assurance and independent judgement—without the theatre of traditional consultancy.
Why CDAS exists
“CDAS exists to close the distance between what a system says should happen and what people are actually dealing with.”
Assurance should strengthen the operation—not create paperwork theatre. That means understanding the context, testing what matters and giving leaders clear, useful judgement they can act on.
Experience before opinion
A career built across
the whole system.
From the worksite to executive assurance, Steve's perspective has been shaped by responsibility at every level.
Senior diving leadership
As Superintendent of Diving for Serco UK & Europe, Steve held responsibility for system design, technical oversight and assurance across demanding operations.
Independent authority
CDAS was created to give clients direct access to experienced, impartial senior judgement—without layers of traditional consultancy.
CDAS today
Diving Technical Authority, client representative, auditor, investigator and system developer—one connected view of operational assurance.
Experience before opinion
Technical knowledge matters.
Context makes it useful.
Independent assurance is strongest when the person providing it understands how plans, people, equipment and pressure interact in the real operation.
Professional standing
Credibility you can
verify.
Professional recognition supports the work. Operational judgement gives it meaning.
Chartered Quality Professional
MCQI CQP — professional recognition of quality leadership, governance and improvement.
ISO lead auditor capability
Audit capability aligned to ISO 9001 and ISO 45001 management systems.
Structured incident investigation
Kelvin TOP-SET methodology for disciplined, evidence-led investigation and learning.
ADC Associate Member
Active connection to the UK commercial diving community and its professional standards.
JOSCAR registered supplier
Recognised within the aerospace, defence and security supplier community.
Independent technical authority
Clear, defensible advice grounded in operational knowledge and professional independence.
Beyond the engagement
Contributing to
better practice.
Industry guidance
Reviewing and developing ADC guidance to help turn collective experience into practical, usable standards.
Human factors
Keeping the human diver—and the conditions shaping performance—at the centre of assurance.
Published insight
Writing and contributing on leadership, diving assurance, safety and operational learning.
How CDAS works
Advice shaped by evidence, not commercial convenience.
Grounded in how work is really planned and delivered.
Attention focused where it creates genuine confidence.
Clear challenge accompanied by a practical way forward.
Direct access to senior judgement
Speak to the person
who will do the work.
Every CDAS engagement is led directly by Steve. No sales handover, junior delivery or dilution of responsibility.
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