Colleen Theron

Colleen Theron

Compliance and Modern Slavery Specialist

Bench Accredited



Franscesca Da Vita

“Working with Colleen is like a breath of fresh air. She applies a common sense approach with a clear level of intellectual ability. The achievement of the clients objectives were always at the forefront of our discussions. Her preparation of documentation, for example the preparation of a highly technical analysis of an Environmental Impact Assessment was both timely and of a very high quality”

Millennium Stadium

Darren Crossman, Facilities Manager

“After approaching Colleen with regards to providing bespoke training for the Welsh Rugby Union and the Millennium Stadium in sustainability, we discussed our needs and she put together a training package tailed towards our goals. Colleen delivered the training to our staff with great success and the outcome generated knowledge, understanding and enthusiasm within all of the staff which was instrumental in our move towards BS8901 and subsequently ISO20121”

Work Experience


CLT envirolaw

July 2009 - Present

CLT envirolaw is niche consultancy specialising in strategy, risk management, ISO 20121 sustainable event management, environmental compliance and governance, sustainability policies, human rights due diligence, procurement, reporting and innovation, training and research.
With 20 years legal experience, Collen works with organisations to help them understand the relationship between sustainability and the law. Creating tailored compliance and risk management solutions and using best practice sustainability knowledge.
Assignments include
Regulatory compliance advise to the IT sector on producer responsibility and obligations
Environmental law advice to a law firm on environmental compliance issues
Bespoke legal notes to LexisPSL, Environment and in–house advisor on sustainability reporting, sustainable development and responsible business requirements
Sustainability gap analysis to FSB, the financial regulator in South Africa
Drafting sustainability policy for an SMEs
Implementing ISO20121 for a global events company and retained support on strategic sustainability issues
Bespoke training to companies on sustainability and legal issues
Developing a human rights policy and procedures for a global Company
Managing a stakeholder engagement process for the RFU (on going)
Drafting sustainable procurement criteria for tenders

Associate Lecturer

Birkbeck University of London

June 2009 - Present

Design and deliver the environmental law module for Birkbeck LLM students


LexisPSL Environment

January 2010 - March 2013

Ongoing consultancy work. Drafting bespoke notes with practical guidance for lawyers and in-house counsel on environmental law, sustainability and responsible business issues.

Editor, PLC Environment fixed-term contract | part-time consultant to Dundas &Wilson environmental law team

Practical Law Company Limited

August 2008 - October 2009

Writing practice notes, standard legal documents, legal updates on environmental law and policy, such as climate change, renewables, waste, water, company reporting, carbon reduction commitment.

Client-facing meetings and demonstrations of the site.
Head of the Environmental Law Department

Head of the Environmental Law Department

Lawrence Graham LLP

September 2006 - July 2008

Advised on non contentious and contentious environmental law matters for major developers ( e.g. Sainsbury’s, Castlemore Frobisher Ltd), public sector organisations (London Borough of Tower Hamlets), banking sector.

Advised directors on personal liability in respect of health and safety issues.
Partner, Environmental Law

Partner, Environmental Law


May 2004 - September 2006

Provided advice on environmental law issues in major corporate and property transactions
Advising on acquisitions and sales for the corporate department
Acted for a number of steel and waste sector clients
Advised Promat UK Limited on product liability issues
Senior Environmental Associate

Senior Environmental Associate

Norton Rose

June 2000 - March 2004

Advised on complex environmental issues in major corporate and property transactions, liaising with clients and internal teams as required
Clients included major engineering, car manufacturers, engineering groups, packaging manufacturers
Advised on number of PFI related work including acting for the senior lenders supporting Tube lines in the successful privatisation of the London Underground, the Airline Group on the NATS PPP
Undertook climate change work, advising on emissions related issues and climate change levy
Provided specialist advise on a range of banking matter, including potential lender liability issues

Education & Qualifications



2000- Present

England and Wales


1998- Present

University of Aberdeen

LL.M (Environmental Law) with Distinction

1995 - 1996

Rand Afrikaans University

Diploma in Bill of Rights

1993- Present

Practical Training Law School (Pretoria)

Certificate of Attendance - Distinction in Company Law

1992- Present

University of Stellenbosch

BA (Law)

1986 - 1989

About Colleen Theron

Colleen has over 20 years experience in environmental issues, and extensive knowledge of the commercial and regulatory issues affecting business. A recognised expert in the legal sector, she also has expertise in embedding sustainability principles in business and NGOs. As the director of CLT envirolaw, she is involved in a broad range of work including human rights and business, particularly human trafficking. She understands how to embed the principles of responsible business at both a strategic and operational level. Colleen is on the advisory boards of LexisPSL Environment and Barbour’s HSE directors group, and also lecturers at Birkbeck School of Law.


Policy & Compliance

Responsible Investment/ESG

Sustainable Supply Chains

Skills & Expertise

Environmental compliance
Environmental Law
Human Rights Due Diligence
Modern Slavery Act
Sustainability reporting

Current Location

United Kingdom

Locations Considered

UK & International

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