Policy:
- Co-chair of UN Intergovernmental science-policy Platform on Biodiversity and Ecosystem Services (IPBES) assessment of Pollinators, pollination and food production
- Food and Agricultural Organisation of the United Nations (FAO) International Pollinator Initiative): Advisor
- Chair of the European Pollinators Initiative STING expert group for an EU-wide pollinator monitoring scheme (EU PoMS)
- Department for Environment, Food and Rural Affairs (Defra): Pollinator Advisory Steering Group
- Department for Environment, Food and Rural Affairs (Defra): Pollinators Expert Advisory Group
- Department for Environment, Food and Rural Affairs (Defra): Sustainable Intensification Platform Research Advisory Group
- House of Commons Science, Innovation and Technology Committee inquiry into Insect declines and food security: Expert witness. Full report
- House of Commons Environment Audit Committee inquiry into Insects and Insecticides: Expert witness
- UK Parliamentary Office of Science and Technology (POST): Advisor
- Convention for Biological Diversity (CBD) (IPI): Advisor
- European Food Standards Authority (ESFA): Advisor
- European Commission, DG Environment (ENV), DG Research and Innovation (RTD), DG Agriculture and Rural Development (AGRI), and DG Health and Consumers (SANCO): Advisor
- European Environment Agency (EEA): Advisor
- European Parliament: Advisor
Business:
- John Spaden Lewis Trust for Natural Sciences: Trustee
- Waitrose Agronomy Group: Advisor
- Innocent Drinks: Agricultural Sustainability Strategy Advisory Board
- Oracle for Research: Collaborator
Research:
- SUPER-B: Sustainable pollination in Europe: joint research on bees and other pollinators: Management Committee
- Horizon 2020 Societal Challenge 2 'Food Security, Sustainable Agriculture, Marine and Maritime Research, and the Bio-economy': Advisory Group
- EU DG RIA: working group chair to identify and prioritise future call topics on pollinators
NGO and Charity:
- NIRD Trust: Committee member
- BeeWild: Chair of Scientific Advisory Board
- Pollinating London Together: Scientific board member
- Co-Chair of the IUCN Wild Bee Specialist Group of the Species Survival Commission
- Promote Pollinators: Observer
- IUCN European Fund for Youth Action on Pollinators: Scientific Advisory Board
- IUCN Teasel-plant specialised bees in Europe Conservation Action Plan: Steering group
- World Bee Project: Co-founder