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Regulatory and scientific consulting

Sagentia Regulatory unites the former TSG Consulting with the Leatherhead Food Research brand to deliver outstanding scientific and regulatory expertise across a variety of sectors, globally. Whether you need support navigating the complexities of chemical regulations or guidance in complying with food and beverage legislation, our unique blend of science, regulatory expertise and industry experience enables us to provide you with solutions to the most complex of challenges.

Get in touch to discuss your regulatory challenges and discover how our team of industry experts can support you.

Get in touch

Serving the chemical and food and beverage markets

Europe

Regulatory compliance across the Plant Protection, Biocides & Cosmetics and Chemical Compliance, Stewardship and Sustainability sectors

Europe regulatory consulting services

North America

US Federal, US State and Canada regulatory compliance support across the Conventional Pesticides, Fertilizer, Antimicrobial, Chemical Substance, Animal Feed & Pet Food sectors

North America regulatory consulting services

Leatherhead Food Research

Your global food and beverage regulatory experts. Regulatory expertise; UKAS-accredited Cooking Instructions testing; Food Safety expertise; Membership benefits.

Global food and beverage regulatory consulting

Expert insights

View archive
News

July 2, 2025

Sagentia Regulatory – Formerly TSG Consulting

Advisory

July 1, 2025

Analysis of Alternatives and Comparative Assessment: are you prepared?

Insight

June 30, 2025

How to de-risk chemical regulations, the smart way

Advisory

June 20, 2025

Ethanol: Prepare for BPR product authorisations

Advisory

June 6, 2025

Maximum Residue Levels (MRLs) in the EU: What are they and why are they important?

Advisory

May 9, 2025

Navigating EFSA’s revised birds and mammals guidance

Advisory

May 2, 2025

ECHA publishes its proposals for the restriction of chromium (VI) substances

Advisory

April 8, 2025

New EFSA-ECHA guidance on water treatment residues to impact biocides applications from April 1, 2026

Why Sagentia Regulatory?

  • Strong teams: Our consultants combine regulatory and scientific expertise in environmental science, human health and chemistry. They bring years of experience, from senior positions within the chemical industry, regulatory bodies or leading consultancies. We build teams tailored to your project, from early-stage product development to on-going regulatory and compliance support.
  • Industry leading people: Because of the quality of regulatory work we do and caliber of clients we work for, we attract stellar talent to Sagentia Regulatory. Highly experienced consultants who are renowned in diverse fields like toxicology, environmental fate and chemical residues. For you this means working directly with industry leaders capable of delivering smart, timely solutions to complex, business-critical challenges.
  • Problem solving: Our unique blend of science, regulatory expertise and industry experience allows us to tackle complex challenges for products and chemical substances in the crop protection, antimicrobial, biocide, industrial, consumer, food and beverage, pet food and animal feed sectors. We take a rigorous, meticulous approach backed by strong commercial understanding. We relish the challenge of getting to grips with our client’s business issues and navigating complex regulations in multiple jurisdictions.
  • Global reach: We work across Europe and North America. In Europe, our experts are spread across the EU and UK. In the US and Canada, our professionals at both Federal and State levels help you navigate diverse regulatory regimes. This local expertise allows us to help clients obtain, or renew, approvals for products and chemicals in Europe, the US, or multiple territories at once.
  • Project delivery: Our powerful project management systems are a match for the best in the industry. We have the people skills and platforms in place to make sure projects are resourced properly and run smoothly. We can also deliver science-based risk assessments and insights in a way that’s relevant and understandable – bringing added clarity to projects, and confidence in final outcomes.
  • Multiple practices with diverse service offerings: As part of Sagentia, we have sister consultancy practices – Sagentia Innovation, Sagentia Medical, Sagentia Defence and Sagentia Aviation – that extend our expertise, knowledge and service offering. Whether it’s a toxicologist, packaging specialist or R&D consultant, we can bring the right people together to work as one team on your project.

Our leaders

Meet the leaders who guide and inspire our consultants to deliver unparalleled regulatory and scientific expertise. With backgrounds in the chemical industry, regulatory bodies, and leading consultancies, they ensure meticulous attention to detail and excellence. Their holistic approach ensures high-performing teams tailored to tackle complex challenges and drive success for our clients.

Daryl Thomas

Managing Director and President

With over 30 years’ experience in agribusiness and regulatory consultancy, Daryl specializes in building and coaching international, multifunctional, high-performing teams. By leveraging commercial excellence, Daryl ensures that clients receive exceptional service and tailored solutions to meet their unique needs and achieve their goals.

Richard Bishop

Operations Director, Europe

Richard drives operational excellence, governance, and compliance, leveraging senior HSE and CRD leadership and deep expertise in chemical regulation and regulatory enforcement.

Amy Burrows

Head of Commercial, Europe

Amy is a Certified Agile Project Management practitioner with over ten years’ experience providing scientific and regulatory support across the plant protection, biocides and cosmetics industries and 21 years in total managing multi-disciplinary scientific projects.

Sue Bullock

Head of Chemical Compliance, Stewardship and Sustainability, Europe

With over 30 years’ experience in human health and environmental consultancy, Sue provides expert strategic and technical advice to chemical producers, downstream users and product manufacturers world-wide.

Sam Walker

Head of Biocides and Cosmetics, Europe

Sam has fifteen years’ experience in chemical, biocide, and pharmaceutical regulations, specializing in efficacy, strategy, study monitoring, and dossier preparation. Her expertise includes biocides, renewals, technical equivalence, endocrine disruption, and environmental fate studies.

lain Watt

Head of Plant Protection, Europe

With thirty-five years’ experience in the crop protection sector, Iain has a track record of achieving successful regulatory outcomes, including applications for new active substances, and renewals of existing active substances.

Bruce Callow

Head of Environmental Science, Europe

Bruce has over 25 years’ experience providing expert regulatory advice on the environmental fate of agrochemicals, chemicals and biocides, including representation and negotiation with EU regulatory authorities.

Dr Samantha Eaves

Head of Human Health – Chemistry, Analytical Methods and Residues, Europe

Sam has extensive experience in regulatory and registration support for the biocides industry. She previously gained research and development experience in the healthcare sector of the FMCG industry. Holds a PhD in Chemistry.

Ailsa Jackson

Head of Toxicology, OPEX and Study Management, Europe

An experienced toxicologist, Ailsa has over 30 years’ experience as a lab study director and manager, and a regulatory toxicologist in agrochemicals. She is a former president of the American Board of Toxicology.

Abigail Wacek

Managing Director, North America

An expert in pesticide compliance, Abby specializes in residual disinfectants, inert ingredient petitions, treated articles, and products that integrate nanoscale materials, especially silver.

Kelly Rahn

Executive Vice President, State Programs and Business Development, North America

With over 30 years’ experience, Kelly is an expert in the registration and ongoing compliance of pesticides at the US state and federal level, with an emphasis on antimicrobials and conventional chemicals.

Mariko Kubo

Operations Director and Head of Global Regulatory, Leatherhead Food Research

Combines 15+ years’ consultancy experience with deep expertise in Japanese and global food regulations. Fluent in three languages, Mariko helps clients navigate complex markets with clarity, precision, and cultural insight

What our clients say

We prefer to go with Sagentia Regulatory because they are a large firm with breadth and depth of expertise. We need knowledge of scientific affairs, not just the regulations. We also need to have confidence they have solid networks and a positive reputation with key regulators.

Valuable qualities in project manager: professionalism, quick response times, accuracy, knowledge of our brand and regulatory requirements.

Your service has an outstanding quality, so we do not think there is anything that should be changed or improved.

Facts about Sagentia Regulatory?

Deep Regulatory expertise

scientists and consultants

International reach

languages spoken

Feet on the ground

offices globally

Member support

enquiries answered annually

Trusted partner

years of heritage

Contact us to arrange a chat with our regulatory experts