At e3Scientific experienced, technically excellent, motivated scientists are the backbone of our business.

Our team combine highly qualified scientists with extensive international and national experience; national and global connections; local knowledge; and a lot of passion to deliver professional, prompt and personal service.

Glenn Davis
Managing Director (Christchurch Office)
Glenn is Managing Director and Principal Environmental Scientist at e3Scientific. Glenn has over 20 years of experience as an environmental practitioner and has worked in New Zealand, Australia, United Kingdom and Ireland. Prior to co-founding e3Scientific Glenn owned and operated Davis Consulting Group Limited (DCG) which provided ecological and contaminated land services throughout the South Island. Glenn successfully operated DCG for a period of 10 years and has a proven track record in the delivery of small and large scale environmental investigations.  Glenn regularly provides expert evidence in council hearings and has experience as an expert witness in Environment Court proceedings.
Gemma Davis
Director (Christchurch Office)
Gemma is an urban planner with 20 years of experience working in private consulting, not-for-profit and government in Australia, New Zealand and the Republic of Ireland. Educated in Western Australia, Gemma has a Bachelor degree in Urban and Regional Planning (Hons) and is currently an Adjunct Research Fellow with the University of Western Australia.  Gemma has authored a large number of research papers and reports in the fields of geography and urban planning and has undertaken a wide variety of strategic urban planning projects including the preparation major policy documents and strategies for land use, transport, social, cultural and environmental development. Gemma is also adept in the design and management of processes for community consultation and participation and the preparation of social impact assessments.
Lisa Cosgrove
Office Manager (Arrowtown Office)
Lisa is Officer Manager with e3Scientific and has been working with the organization since early 2013. Originally from the United Kingdom, Lisa has been living in New Zealand for more than 19 years, has a BA (Hons) Health and Community Studies and has a strong background in dance, which culminated in her co-founding and operating her own dance school in the Wakatipu and teaching dance to students in the area for nearly a decade.
Rebecca Teele
Team Leader - Ecology (Arrowtown Office)
Rebecca is a terrestrial ecologist with over seven years’ experience in ecological assessment, monitoring, and management. Rebecca has worked with e3Scientific since 2012 and is experienced in undertaking ecological surveys, preparing Ecological Management Plans, and Ecological Impact Assessments for small- and large-scale land activities. She has also managed large scale restoration projects, including monitoring requirements. Rebecca has a strong technical capability, including ornithological and botanical surveys, statistical analyses, and GIS mapping. She has co-authored scientific publications, is a Certified Environmental Practitioner (CEnvP), and is a full member of the Environment Institute of Australia and New Zealand and the New Zealand Ecological Society.
Bryony Miller
Technical Director - Marine and Freshwater Ecology (Invercargill Office)
Bryony is an environmental scientist with a background in marine and freshwater ecology. She has obtained experience in fisheries management with the Ministry of Primary Industries; has completed environmental impact assessments for commercial fishery companies; and has been called as an expert witness in Environment Court. She is also proficient in GIS mapping, remote sensing and ecological impact assessments. Bryony's work has involved assessing macroalgae, macrophyte and coral reef habitats and designing and completing subtidal biosecurity surveys, collecting data that has subsequently been utilised to create maitaitai's and habitat restoration plans. Bryony qualified as a PADI Dive Master in 2005 and has since logged over 500 dives throughout New Zealand, Australia and the Pacific Islands. Bryony is an experienced dive team leader and has coordinated and been a member of marine ecological surveys in Fiordland, Otago, Bay of Plenty and the Great Barrier Reef, Australia.
Melissa Jager
Senior Terrestrial and Freshwater Ecologist (Arrowtown Office)
Melissa is an ecologist with five years’ experience undertaking ecological impact assessments and monitoring in a range of ecosystems and habitats including wetlands, shrubland, forests, tussock grasslands and rivers. She has developed extensive experience in assessing ecological values against significance criteria under a range of regional policy statements and district plans. Melissa has excellent botanical knowledge and ecological surveying skills and has undertaken large scale mapping of vegetation communities. Melissa is very thorough in her reporting skills, field methodologies, and frequently provides technical reviews of ecological assessments for local and regional councils.
Alexandra Badenhop
Technical Director - Water and Environmental Management (Arrowtown Office)
Alexandra is an environmental engineer with over 15 years experience working in the water industry.  Prior to commencing work with e3Scientific in 2015, Alexandra was employed as a consulting environmental engineer by the Water Research Laboratory, University of New South Wales, Australia (2004-2014). Her experience encompasses a range of engineering studies, including hydrogeochemistry and water quality assessments, literature and program reviews, groundwater testing and feasibility studies and numerical modelling.  As the Technical Director -Water & Environmental Management team at e3Scientific, Alexandra is responsible for groundwater and surface water supply and water quality assessments, technical reviews for regional councils, assessing and reviewing discharges to land, assessment of environmental effects, project management and environmental risk assessments. She has a B.Eng (Environmental)(Hons 1) and M.Eng.Sci (Groundwater Studies) which also fulfilled the criteria for M.Eng.Sci (Water Quality) and enjoys collaborating on multidisciplinary projects with the ecology team.
Fiona Rowley
Team Leader - Contaminated Land (Arrowtown Office)
Senior Environmental Scientist – BSc Geology, University of Canterbury. Fiona is a professional environmental scientist with over 9 years’ experience working in the earth science industry throughout the South Island, predominantly in the Otago and Southland Regions. Prior to commencing work with e3Scientific, Fiona was employed as a Field and Mine Geologist at Stockton Alliance Mine, Westport. Fiona is principally experienced in project managing contaminated soil investigations including preliminary and detailed site investigations, soil disposal routes and site management plans for a variety of HAIL sites. Fiona has completed both large and small scale projects including extensive remedial work of former timber treatment plants, landfill investigations, fuel distribution facilities, and sheep-dips. Fiona has assisted in bio- availability studies examining elevated background arsenic concentrations. During her time with e3Scientific Fiona has been instrumental in applying the use of hand held X-Ray Fluorescence in site investigations and remediation.
Carrie Pritchard
Senior Environmental Scientist (Te Anau Office)
BSc Natural Resource Management (Honours), University of Western Australia. Carrie is an environmental scientist with 19 years’ experience in environmental management of projects in New Zealand, Australia, and Greenland. Carrie has managed multidisciplinary project teams and authored Environmental, Social and Conservation Management Plans for mining and infrastructure projects including: ore processing plants and associated waste management facilities, power stations and distribution networks, road upgrades, gas pipelines, water supply and dewatering projects, remote accommodation villages and associated waste and effluent treatment. Carrie has extensive experience managing environmental impact studies for all stages of project development including due diligence, feasibility studies, construction and closure, including 10 years’ experience managing and rehabilitating environmental legacy sites associated with bauxite, uranium, gold, vanadium and nickel mining and processing.  During her time with e3Scientific, Carrie has completed Preliminary and Detailed Site Investigations, Remedial Action plans, and coordinated remedial projects through to validation over a range of HAIL activities including sheep dips, timber treatment plants, shooting ranges, landfills and industrial sites including fuel distribution facilities.
Simon Bloomberg
Senior Environmental Scientist (Christchurch Office)
Simon is an Earth system scientist with over 10 years of experience in the environmental and natural resource sectors with a focus in geochemistry and system assessments. Simon has prepared AEEs for consent application, and provided technical peer review of on-site wastewater, contaminated land, and other discharge consent applications for regulatory authorities. Simon has lead technical projects for high-level contaminated site classification and undertaken environmental risk assessments and site investigations for contaminated land projects. At e3s Simon contributes to both the Water and Environmental Management and Contaminated land teams, and collaborates on multidisciplinary projects with the ecological teams.  
Jodi Halleux
Senior Environmental Consultant (Invercargill Office)
Jodi is an environmental scientist with over ten years’ experience in waste, environmental management and regulatory compliance at both territorial and regional levels. Jodi has extensive experience in regional government in the South Island and was responsible for developing and implementing contaminated land and pollution education programmes for the Southland Region.
Nana Holtzmann
Marine & Freshwater Ecologist (Arrowtown Office)
Nana is an environmental scientist with a background in marine and freshwater ecology. Nana has experience in estuarine, coastal, open water, river and lake water quality sampling and surveying techniques, including fish monitoring, assessing macroalgae, macrophyte and coral reef habitats. Nana qualified as a PADI Dive Instructor in 2010 with over 1500 dives logged in tropical and New Zealand waters and she is a NZ fully certified skipper with coastal and lake operation experience. She has developed sound terrestrial fieldwork techniques and methods to support accurate site investigations and is qualified in the use of our Olympus Vanta X-ray Fluorescence instrument.
Simon Beardmore
Technical Director - Contaminated Land (Arrowtown Office)
Simon joined e3Scientific Limited in June 2019, having developed a strong regulatory background from nearly ten years at the Otago Regional Council. At the ORC, his primary responsibilities included developing contaminated land management strategy, undertaking site investigations, developing and maintaining a spatial register of contaminated land / hazardous activity and industry data, peer reviewing preliminary and detailed site investigations, providing technical advice to support policy and consenting teams, and managing remediation projects awarded central government funding. Since joining e3s, Simon has continued to provide valuable support to local authorities in Otago and Southland as well as conduct comprehensive site investigations and risk assessment work for a range of private sector clients.  Simon holds a Bachelor of Science Degree in Environmental Science (First Class Honours) and a Master of Science Degree with Distinction in Environmental Sustainability. These multidisciplinary degrees prepared him well for work in the contaminated land industry, where bringing together different strands of science and communication are key to successful outcomes.
Sarah Johnstone
Senior Environmental Engineer (Arrowtown Office)
Sarah is a natural resource engineer with over 20 years of experience, predominantly in the field of 3 waters engineering. She has worked for civil engineering consultancies in New Zealand and the UK. Sarah is skilled in taking projects from concept to construction, with experience in project management, investigations, design and construction supervision. She has worked for a range of clients from local authorities through to private developers. As a Senior Environmental Engineer at e3s, Sarah will provide water supply, wastewater and stormwater engineering design for new developments, erosion and sediment control plans, and hydrological investigations. She is passionate about low impact, water sensitive design and her expertise brings engineering design capacity to our multidisciplinary assessments of environmental impacts.
Jessie Lindsay
Environmental Scientist (Invercargill Office)
Jessie is an Environmental Scientist with a background in GIS and remote sensing. She has a PGDipGIS (with Distinction) and a MSc in Geography.  Jessie has worked extensively on high resolution mapping for sediment and water quality processes at regional and national scales and was part of a project that was a finalist in the Environment and Sustainability category for the Spatial Excellence Awards. She has a passion for Free and Open Sourced Software for Geospatial (FOSS4G) and is familiar with programming languages that include Python and R. Her remote sensing work includes change detection analysis which is used to assess differences in vegetation health and land cover. She also has experience in contaminated land investigations and has created GIS databases for ecological and biodiversity assessments.
Sorrel O'Connell-Milne
Senior Scientist - Marine Ecology (Invercargill Office)
Sorrel is an environmental scientist with over 5 years’ experience in marine ecology throughout the South Island, predominantly in the Otago, Marlborough, and Southland Regions. Prior to commencing work with e3Scientific, Sorrel was a Coastal Scientist for the Southland Regional Council providing advice to the consenting team, and science to the policy team to inform review of the Southland Coastal Plan. Sorrel has a MSc in Marine Ecology, further working experience as a researcher at the University of Otago and has published in international scientific journals. She has carried out biodiversity and biosecurity monitoring and assisted with studies in a range of systems including open ocean, rocky reef, fiord and estuarine environments. She has collected samples for a diverse array of investigations including stable isotope and trace element analysis. Sorrel is a certified scientific diver and has experience with many ecological sampling and survey techniques.  
Liam Salemink-Waldren
Environmental Field Technician (Arrowtown Office)
Liam is an environmental scientist specialising in field operations. He has a bachelor’s majoring in Environmental Studies. His study background includes environmental management, GIS and contaminated land. Liam is based in the ecology team but regularly works within the other teams where has developed sound knowledge of field work techniques relating to contaminated land, water sampling and terrestrial assessments. He is qualified in operation around helicopters as well as having completed STEP training making him capable of operating in steep otherwise inaccessible terrain including high alpine areas.  
Brian McGlynn
Intermediate Environmental Scientist (Arrowtown Office)
Brian is a hydrologist and environmental scientist with more than 20 years of experience working in a wide range of landscapes across the USA and New Zealand. He has primary expertise in catchment hydrology, river and stream hydrology and biogeochemistry, eco-hydrology, integrated catchment management, water quality, carbon cycle science, and general environmental sciences. He joined e3Scientific in 2021 after sailing here with his family in 2019. He remains an Adjunct Professor at Duke University. Prior, Brian was a Professor of Hydrology and Biogeosciences and Department Chair of Earth and Ocean Sciences in the Nicholas School of the Environment at Duke University and a Professor at Montana State University. Brian has BAs in Environmental Science and History, an MS in Watershed Hydrology, and PhD in Hydrology. He conducted his PhD field research in the Paparoa Mountains of Westland, NZ. He has published more than 100 well cited scientific research papers in leading international journals and taught more than 13 different university courses in hydrology, environmental science, ecohydrology, and the biogeosciences. Brian has contributed scientific expertise and project management for a wide array of water and environmental science investigations from US federal agencies including the National Science Foundation, the Department of Agriculture, the National Park Service, and the Environmental Protection Agency and consulting projects and contracts from NGOs and local and regional governments.  
Brandon Doheny
Freshwater Ecologist (Arrowtown Office)
Brandon is an environmental scientist with a background in marine and freshwater ecology. He has over 10 years’ experience working in academic research and environmental consulting. He specialises in geospatial modelling, ecological assessments, biomonitoring, eDNA, impact analysis, subtidal data collection and image analysis. He has an MSc in Coastal Marine Resource Management from the Bren School of Environmental Science in California. While there he focused on modelling land-sea interactions for conservation priorities in data poor regions of Western Papua. He has ~50,000nm of open-ocean leadership across the Pacific, carries a 50-ton master mariner license, has >2,000 dives internationally and has studied terrestrial and freshwater systems in India, California, NZ, French Polynesia and Indonesia. Prior to joining e3scientific, Brandon managed operations for the SCB Marine Biodiversity Observation Network as a Research Specialist at the Marine Science Institute (University of California, Santa Barbara).


Postal address
P.O. Box 2450
Queenstown 9349

Arrowtown Office
Arrow Lane
Arrowtown 9302

Invercargill Office
Lorn Street
Invercargill 9810

Te Anau Office
Level 1
112 Town Centre
Te Anau 9600

Christchurch Office
Public Trust Suites
Level 1/152 Oxford Terrace
Christchurch Central 8011

(+64) 3 409 8664