Join the Ascerta Team


Meet the Ascerta Team

Our team of dedicated professionals, all experts within their respective disciplines, bring many years of experience to the wide range of projects that we deal with. Both individually and collectively we can add significant value to your projects.

Landscape Architects

Chris Neilson

Landscape Architect

Chris has a dual BA honours degree in Landscape Architecture with Town Planning, a Masters in Landscape Architecture, and is a Chartered Member of the Landscape Institute (CMLI). Having 10 years’ experience working as a Landscape Architect, Chris is a valued member of the landscape team. Chris is responsible for the project management and production of Landscape Masterplans, Planting Plans, Landscape Details, Landscape and Visual Impact Assessments (LVIA), and Landscape and Ecological Management Plans (LEMP) to support planning applications.
In his spare time, Chris enjoys running and walking his dog in the great outdoors. Chris also likes to sketch.

Andy Croft

Landscape Architect

Andy has over 8 years experience in Landscape Architecture and Planning that includes masterplanning, Landscape & Visual Impact Appraisals, production of planting plans as well as public realm and residential design, delivering projects from inception to construction. Andy has achieved a BA (Hons) Landscape Architecture from Manchester Metropolitan University and an MSc Urban Regeneration and Development at The University of Manchester and is currently completing the Landscape Institute Pathway to Chartership. Outside of work, Andy enjoys being outdoors walking or climbing and has a passion for photography and music.

Greg Harding

Landscape Architect

Greg holds postgraduate and undergraduate degrees in Landscape Architecture from Birmingham City University and is currently working towards Chartership through the Landscape Institute.

With both private and public sector experience as a landscape architect, Greg has worked on a diverse range of projects including public realm redevelopment, flood defence masterplans, green infrastructure improvements, planning consultancy and more, whilst successfully seeing projects from inception through to completion with experience as a Project Manager and Contract Administrator.

In his spare time, Greg enjoys outdoor activities such as windsurfing, kayaking, and cycling, as well as the occasional skydive. He also enjoys playing and creating music as a hobby.



Stuart Randle

Principal Arboriculturist

Stuart has a broad range of experience within the Arboricultural industry spanning 25 years. He has worked with a wide range of clients within construction, infrastructure, land acquisition, engineering, aviation and land remediation. Stuart started out within the industry as a climber, before moving on to become a local authority tree officer and then consulting arboriculturist. This broad experience of the industry has made him a valuable member of the team with a pragmatic approach to achieve the best outcome for our clients.
Stuart enjoys an active outdoor lifestyle. He is a keen cyclist, enjoys spending time with his family, has a passion for fishing, photography and Yoga. If he’s not working on his house renovation or out walking with his family, Stuart can usually be found riding the byways of the Yorkshire Dales or taking part in ultra-distance cycling events.

Helen Sullivan

Helen Millner

Senior Arboriculturist

As our Senior Arboriculturist, Helen has responsibility for the delivery of survey and consultancy services to our client base across a broad arboricultural spectrum. Qualified through Myerscough College in Lancashire, Helen has experience of working for arboricultural contractors and previous consultancies, as well as in a local planning authority environment as a tree officer, therefore she brings a wealth of experience to the team in the planning and insurance arenas.

Helen enjoys travelling, having spent several years working in Dubai, and enjoys keeping fit with spinning classes. Having recently completed a 10K she is now in training for a half marathon.

Kevin Pope

Kevin Pope

Arboricultural Surveyor

As an Arboricultural Surveyor Kevin is responsible for providing high quality tree surveys for planning applications or general tree/risk management. Qualified on an apprenticeship through Myerscough College, he has practical experience with arboricultural contractors working all over the country. The practical knowledge he brings to the team gives us a fresh perspective helping solve problems on site. Kevin is now a member of the Arboriculture Association and is currently studying for his degree in Arboriculture and Tree Management.

Outside of work Kevin enjoys travelling, photography, the outdoors and keeping fit at the rock climbing gym.



Lizzie Atkinson

Lizzie Atkinson


Lizzie holds a Masters degree in Animal Behaviour and is a qualifying member of the Chartered Institute of Ecology and Environmental Management (CIEEM). With several years experience as a key member of the ecology team, working on a wide variety of projects across the country, Lizzie’s main responsibilities include undertaking site assessments, protected species surveys, analysing and processing relevant data and producing reports to support planning applications.

Lizzie spends most of her spare time enjoying the outdoors, whether it be spotting local wildlife, hiking or paddle boarding.

Liz Kenyon

Liz Kenyon

Senior Ecologist

Liz holds an honours degree in Ecology and Environment and has more than ten years experience in ecological surveying and consultancy, having worked on a wide variety of projects across the country. Liz’s responsibilities include leading on phase 1 and protected species surveys for the preparation of reports to support planning applications, and managing projects to their successful conclusion for our client base. Liz has a particular interest in bats, having been an experienced bat carer for Lancashire and is a member of her local bat group.

Outside of work, Liz enjoys the outdoors and can normally been found exploring national trust properties, often followed by an afternoon tea.

Jack Kay

Assistant Ecologist

Jack holds a Masters degree in Marine Science and a Bachelors degree in Wildlife Conservation & Ecology, with experience undertaking species surveys and providing an Ecological Clerk of Works (ECoW) service with several companies. Jack’s main duties include coordinating and carrying out protected species surveys, as well as reviewing data and producing reports to support client projects.

Outside of work Jack enjoys camping and hiking, as well as being an avid gamer and film enthusiast.



Lizzie Atkinson

Elle Lowry

Marketing Executive

Elle holds a Masters’s Degree in Digital Marketing from Liverpool John Moores University. She moved to Liverpool from Derry, Northern Ireland to study Media, Culture and Communication also at LJMU. Elle developed an interest in marketing by promoting her hobbies of embroidery and photography.

In her personal time, when she is not working on her embroidery, Elle loves to travel but also likes to spend as much time as she can with her friends and family.

Lizzie Atkinson

Mandy Benyon

Credit Controller

Mandy has more than fifteen year’s experience in the Accountancy and Payroll sector, having worked for many companies. Mandy’s responsibilities include managing the Credit Control of the company.

Outside of work, Mandy enjoys to spend time with family and friends and also follows her local St Helens Rugby League Club attending most games.



Ciaran Power

Ciaran Power

Operations Manager

Aside from being our technical and IT guru, Ciaran leads on our office systems and processes, ensuring that everything runs smoothly for our clients and team. With a degree in Geography Ciaran has a first class grounding to complement what we do, allowing him to deliver an exceptional service as the backbone to the business. As our longest serving member of the team, Ciaran has a comprehensive understanding of the day-to-day running of the business and regularly leads on production of reports and supporting information to meet client objectives.

In his spare time, Ciaran is a keen gamer and football supporter, and spends much of his time building, dismantling and fixing computers.

Danielle Wood

Danielle Wood

Commercial Manager

With in excess of 10 years experience in professional office and business management positions, and a track record of strong performance in high-volume, high-pressure environments, Danielle provides leadership in skilfully managing corporate duties and commercial processes for her colleagues at Ascerta.
As Commercial Manager, and drawing on her exceptional organisational skills, she ensures the smooth operation of the company, as well as the implementation and management of all business processes to give clients the best possible service, whilst exploring new opportunities for company growth and development.

Outside of work, Danielle enjoys walking and keeping fit, as well as spending time with friends and family. She also volunteers for the Girl Guiding Association with the Rainbows group.

Alistair McLeod

Alistair McLeod

Company Principal

Alistair draws on a vast amount of experience across an almost unrivalled breadth of projects stretching back to when he first entered the arboricultural industry in 1987. Having worked with a diverse client base alongside numerous allied disciplines for many years, Alistair is able to see and focus on the positives in every situation and uses this, along with his unwavering support of client aims & objectives, to get the best results possible for clients.

Alistair loves to get out into the countryside and has been known to get involved in the occasional charity walk, having completed the Caledonian Challenge (walking 54 miles through the Highlands of Scotland in 24 hours) two years running.