Meet the Senior Management Team

The Aristi Senior Management Team provide strategic direction and governance to the business as well as define its culture through embedding our core values into everything we do.

Harj Singh

Chief Executive Officer

Harj has over 20 years of experience in cyber security from hands on cyber practitioner through to managing cyber teams and developing cyber services. His journey working for specialist cyber consultancy businesses and large enterprise organisations led him to founding Aristi in 2008 where his experience and determination has transformed the business into one of the leading cyber testing providers in the UK. Harj's unwavering commitment to excellence, combined with his deep industry knowledge, has earned him a reputation as a trusted advisor and leader in the cybersecurity domain. Under his guidance, Aristi has consistently delivered pragmatic solutions that empower organisations to protect their valuable assets from ever-evolving cyber threats.

Rob Jervis

Chief Technology Officer

Rob is an experienced cyber practitioner and manager who leads a team of highly skilled cyber testers along with our National Cyber Security Centre (NCSC) accredited CHECK team. With two decades of expertise in cyber security, he has successfully led teams, conducted penetration tests for diverse clients, and assisted organisations in enhancing their cyber security posture. Rob's technical proficiency, strategic mindset, and commitment to excellence have earned him a reputation for delivering exceptional results. His ability to understand clients' unique needs and provide tailored solutions has solidified his position as a trusted advisor in the field. Rob continues to drive innovation and excellence within Aristi.

Heather Batt

Chief Operating Officer

Heather is a highly skilled and results-oriented individual responsible for overseeing operations at Aristi. With a wealth of experience in managing projects, teams, and resources, Heather has demonstrated expertise in driving organisational efficiency and excellence which has led to Aristi being certified against ISO 9001 for quality management. Heather's keen eye for detail, strategic thinking, and exceptional leadership skills have made her an invaluable asset to the company, ensuring seamless operations and successful project delivery. Her dedication to client satisfaction and operational excellence has resulted in consistent positive client feedback and long-term client relationships.

Martyn Butcher

Chief Commercial Officer

Martyn is a dynamic and accomplished individual who leads sales and marketing at Aristi. With a vast background in the commercial world spanning over 30 years ranging from building and managing his own successful business to leading commercial operations for large enterprise organisations, Martyn brings valuable experience to the business. He possesses a deep understanding of the cybersecurity landscape and has successfully helped organisations bolster their cybersecurity posture through innovative and tailored solutions. Martyn's strategic thinking, exceptional sales acumen, and client-centric approach have resulted in Aristi building long term trust-based partnerships with our clients.

0121 222 5630

Got an enquiry? Please don't hesitate to contact us.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Our Services

Cyber Security

We support public and private sector organisations to reduce their cyber exposure.

To find out more, click the read more button below. Or, alternatively please get in touch.

Our Services

Managed Security

We can manage your cyber security and data protection for you.

To find out more, click the read more button below. Or, alternatively please get in touch.

Our Services


We provide training courses for key roles and general user security awareness.

To find out more, click the read more button below. Or, alternatively please get in touch.