The problems we see & how we respond

Protecting the revenue your assets generate

  • No actionable strategy

    We translate technical risk into financial and operational terms you can act on.

  • Compliance over real risk

    We focus on your risk appetite and budget, not what looks good in a report.

  • Effort in the wrong places

    We match effort and spend to genuine business risk, pragmatically and in proportion.

Why us

One senior team, from the boardroom to the control room

  • Full lifecycle coverage

    One team takes you from first assessment to ongoing assurance under one roof, one contract and no handing off to other providers.

  • Multilingual by design

    We speak the language of business and financial risk to your leadership and work hand in glove with your IT and engineering teams on the detail.

  • Owner-led delivery

    The people who pitch to you are the same people who lead the delivery, not a senior sales team who hand the work to junior staff.

Meet the founders
  • Jano Bermudes, Ashcairn founderJano Bermudes
  • Cal McGuire, Ashcairn founderCal McGuire
  • Freddie Witzmann, Ashcairn founderFreddie Witzmann
  • Samuel Kudláč, Ashcairn founderSamuel Kudláč

Managed OT Perimeter

One controlled way in. One controlled way out.

Managed OT Perimeter wraps six capabilities around your critical systems, right-sized to your estate and run by the team that designs it.

  • Perimeter defence

    Dual industrial firewalls and a hardened DMZ at your boundary.

  • Data flow

    Sanitised imports in, a one-way optical diode out.

  • Remote access

    A single MFA-enforced gateway for every vendor and engineer.

  • Identity management

    Zero-trust privileged access, credentials vaulted.

  • Detect

    OT discovery and threat detection without touching process.

  • Respond

    Risk prioritisation and a SOC, local or fleet-wide.

Who we work with

Clients span energy and manufacturing, often across complex multinational operations

  • UK gas and electricity network

    Critical National Infrastructure cyber risk assessments and architecture transformation.

  • Leading Irish dairy food manufacturing group

    Cyber risk assessment and quantification, leading to a cybersecurity transformation initiative.

  • One of Europe’s largest renewables investors

    Cyber risk review and transformation programme delivery for renewable energy assets.

  • FTSE 100 energy supply & services group

    Cyber risk assessment and quantification across multiple business divisions.

  • FTSE 100 global beverage manufacturer

    Cyber risk quantification, maturity review, incident response vendor analysis and tabletop crisis exercise.

  • Leading international private equity firm

    Cyber due diligence and risk quantification of the acquisition of a European district heating system.

  • FTSE 100 global oil and gas supermajor

    Cybersecurity technical and governance transformation oversight and delivery.

  • Global food processing & packaging group

    Risk scenario development and stress test exercise to refine cyber insurance investment.

  • Top global infrastructure asset manager

    Threat intelligence and technical vulnerability review of physical road infrastructure.

  • UK biomass renewable energy power station

    Technical design, installation and ongoing operation of a “right sized” cybersecurity solution.

  • FTSE 100 paper & packaging manufacturer

    Carve-out planning and cost modelling for the divestment of multiple manufacturing sites.

  • London-based international private equity firm

    Portfolio risk review and competitor benchmarking.

See our work

Where we operate

We work across Europe, North America and the Gulf with headquarters in London

Wherever your assets are, we are close enough to be on the ground alongside the people who run them.

Contact

If the problem is complex,
we should talk

We work with a small number of senior leadership teams each year on high-value, high-stakes challenges. If yours is one of them, get in touch.