New Feature! Introducing COMET Companion—AI-powered assistance now available for Incident Management, Investigations & RCA, and Audits & Inspections modules.

Driven by people, defined by expertise

COMET is built on expertise, integrity, and teamwork. Get to know the people driving innovation and supporting businesses worldwide.

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Our people

This is our team, experts from diverse backgrounds working together to support and empower yours. And yes, we have a lot of fun too!

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Our leadership team

With over 400 years of combined experience, our team brings deep expertise and proven insight to every challenge

Mark Rushton

Chief Executive Officer

Mark Rushton began his career in Aberdeen after graduating in 1998, starting in Oil & Gas project management with a focus working in and around internationally accredited training and project management software development. From 2002 to 2004, he worked as a Product Manager at BusinessLab, leading multi-million-pound collaborative research projects in e-business, corporate learning, and social inclusion. Mark joined STC Global (now COMET) in late 2004 as Business Development Manager.

Alan Smith

Head of Investigations

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Steve Holmes

Chief Operating Officer

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Arrash Nekonam

Chief Technology Officer

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Dr Douglas Leith

Chief Intelligence Officer

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Craig Smith

Head of Operations

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Paul Hastings

Head of Software Sales

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Mark Rae

Product Application Manager

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Ravi Dinakarkumar

Head of Software Engineering

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Nial McCollam

Chairman & Non-Ex Director

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Steve Mitchell

Chief Financial Officer

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Paul Nicholas

AI/ML Product Manager

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Brenda Harrison

Marketing Manager

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Ross Webster

Design Manager

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Ross Webster

Design Manager

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Beyond our leadership team, COMET is powered by a passionate group of investigators, learning and development specialists, skilled software developers, data scientists, and a dynamic marketing and design team working together across the UK and around the world.

integrations

Enhance your existing EHS tools with COMET

Unlock the full potential of your current EHS platforms with COMET’s seamless integration capabilities. No need to replace—gain more value, streamline workflows, and ensure better insights with bi-directional data connectivity.

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Don’t believe us, check out what our clients say.

Explore real-world experiences from our satisfied customers who have harnessed the power of COMET. From streamlined processes to enhanced safety, their stories highlight the impact of our solution.

Helped us reduce first aid cases by 29%

"When we adopted COMET, we were looking for a root cause analysis tool that would help us identify underlying causes before they lead to incidents. Since adopting the tool, COMET has helped us reduce first aid cases by 29% in the last year, contributing to Corning’s best-ever safety record in 2022.On top of this, the support from the COMET team cannot be underestimated – they are always on-hand to resolve any issues in a timely and efficient manner. I would highly recommend COMET and the STC INSISO team to anyone looking for an audit and investigation tool."

Guillermo Castillo, Global EHS Leader – OCS Division at Corning Inc.

COMET helped us understand the systemic root causes

"The main value to LR of adopting COMET is the newfound organisational leadership education and enlightenment as to the reasons behind incident types, particularly those which hurt us most in terms of frequency. A recent example was repeat microsleep incidents affecting our surveyors. COMET helped us understand the systemic root causes and gave the Board sufficient confidence to invest over £2 million in a preventive action programme which is already bearing fruit in terms of this type of incident reduction."

James Pomeroy,
Group Director HSEQ at Lloyds Register

We’re maximising its value across the business

"Viridor is a relatively recent adopter of the COMET RootApp tool but is already beginning to really reap the rewards of a first class investigation system.
We’re maximising its value across the business through consistency of approach and ensuring we really do get to the root cause of our incidents so we can set the right actions to prevent recurrence.
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The COMET team has been hugely helpful and supportive in getting this new process implemented."

Richard Robinson,
Head of SHQS at Viridor

Probably the best root cause analysis process and toolkit

"Probably the best root cause analysis process and toolkit. But beyond enabling us to adequately identify root causes, COMET also allows us to track trends using the root cause codes to help address systemic opportunities in our management system."

Bertrand Piredda, Director of HSES Cummins Power Systems

Feels more like a partnership

"Borr Drilling adopted COMET across the business in 2017/2018 and since then our relationship and trust with the STC INSISO COMET team has grown immensely.

Any issues are quickly resolved or addressed and a feature of the relationship I enjoy most is that it feels more like a partnership than that of a more traditional vendor/client arrangement."

Thomas Sunde, QHSE Director at Borr Drilling

Positive and encouraging feedback

"STC INSISO recently delivered the 3-day COMET practitioner course to GSK R&D (UK) engineering and safety professionals.

The COMET team created a bespoke course that was well received by GSK R&D with lots of positive and encouraging feedback."

Ray Duffy, EHS Manager - Projects & Engineering at GSK

From Our Blog

Experience COMET in action. Now available as a free guided trial

Explore COMET through a free guided trial. See how structured RCA transforms investigations in high-risk sectors like energy and rail.

Enhancing safety, preventing incidents, and supporting wellbeing in airport operations

How can airports enhance safety, reduce incidents, and support wellbeing during turnaround operations - insights from COMET and the HSE 2025 focus guildlines.

The impact of mental health on safety performance and culture

How mental health, psychological safety, and workplace community affect safety performance in high-risk industries and what leaders can do about it.

Frequently asked questions

We've compiled answers to some of the most common questions about COMET and our services. If you don’t see your question, feel free to reach out!

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