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Experts in ecology
We are the largest network of ecological consultants in the UK
RSK Biocensus is a market-leading ecological consultancy based throughout the UK. We offer our private- and public- sector clients a complete range of ecological services, survey expertise and pragmatic advice founded on our expert knowledge of wildlife ecology, environmental legislation and policy.
Our 230-person in-house expert team and quality-assured network of more than 700 freelance ecologists create a formidable combination. They are key to our unique technical capability, operational scale and geographic reach, which, when combined result in a market-leading consultancy. Our technical specialists and data-led researches have progressed small- and large-scale projects involving complex and sensitive programmes.
Our vision is for RSK Biocensus to be seen as experts in the delivery of ecological consultancy services and industry leaders in conducting research. This dual goal is reflected in our guiding principles, which include integrating research into our business ambitions, continuing to develop innovative services and providing targeted marketing content while informing industry best practice.
Ecological and environmental services
Ecological assessments
Ecological assessments
Our range of ecological services includes ecological mapping and geographic information systems (GIS), options appraisals, due diligence and constraints analysis.
Find out moreBotanical and habitat surveys
Botanical and habitat surveys
We conduct Phase 1 and 2 UK habitat surveys, including rare plant and National Vegetation Classification (NVC) assessments.
Find out moreProtected species surveys and licensing
Protected species surveys and licensing
We provide comprehensive baseline surveys, population counts, long-term monitoring and licensing advice for multiple protected species, including badgers, bats, dormice, hares, otters and red squirrels.
Find out moreMitigation design, management and planning
Mitigation design, management and planning
We provide services in mitigation measure design, biorestoration and habitat creation, and develop ecological management plans and biodiversity action plans.
Find out moreAquatic ecology
Aquatic ecology
We offer aquatic habitat surveys for freshwater, estuarine, coastal and marine environments, along with water quality surveys, monitoring and assessment.
Find out moreEcological Clerk of Works
Ecological Clerk of Works
We work with construction contractors and advise on protecting valued biodiversity features on construction sites, offering toolbox talks and practical, site-specific guidance on achieving compliance with environmental legislation.
Find out moreTechnical expertise
Technical expertise
We provide public inquiry and expert witness services, stakeholder engagement and high-level strategic policy advice.
Find out moreProject management and surveyor supply
Project management and surveyor supply
We specialise in project management for large-scale projects, overseeing logistics, coordination, and the mobilisation of extensive survey teams.
Find out moreArboriculture
Arboriculture
We offer tree hazard assessments for health and safety, forestry assessments, veteran tree and woodland management surveys and aerial tree inspections.
Find out moreResponsible Body
Responsible Body
In 2024, RSK Biocensus became a Responsible Body. We are now able to carry out compliance monitoring of others’ habitat banks and to enter into conservation covenants.
Find out moreOrnithology
Ornithology
We deliver comprehensive bird surveys tailored to support sustainable development and nature positive outcomes.
Find out moreInvertebrates
Invertebrates
Whether it is a broad assessment of the invertebrate potential of a proposed development site or an in-depth survey for a specific beetle or moth, RSK Biocensus invertebrate ecologists have the skills and the experience to design, undertake and complete any invertebrate project.
Find out moreSolving ecological, environmental and sustainability challenges.
Find out more about our servicesWorking with private and public sectors
Projects we’ve worked on
The structure and geographical range of our business ensure that we can support clients with their projects, from individual developments to large-scale and Nationally Significant Infrastructure Projects (NSIP). Owing to our team’s technical diversity and wide-ranging capabilities, personnel can be rapidly deployed to support the major aquatic and terrestrial ecological disciplines. The team’s steadfast work has assured that clients have delivered large and challenging projects.