About Green IS Group Limited

We are dedicated to our green and ethical ethos; we care about the environment and the local communities that we operate in.

Forestry for all...

GIS was created to bring sustainable plantation teak products to the retail market by offering trees at varying stages of maturity. We currently own plantations in the North West and in the Amazon region of Brazil.

Our Technical Forestry Consultant, and Co Founder, Guy Conroy, has spent over 13 years in the Teak market. He is supported by an operations team that brings together a wealth of knowledge and experience both in forestry and the timber export market.

Technical Innovation...

We have utilised technical advisors from UK universities to harness the ever improving knowledge and advances that are being made in the area of ethical and sustainable forestry. We use management companies that have the best knowledge of the products that are offered to clients and we are working closely with governments in the countries where we operate to create new plantations.

A sustainable approach...

We are actively replanting previously deforested land with plantation timber. For every unit of trees planted for our clients we plant a further 40% of buffer stock to help the regeneration of the rainforests and create stability for the previously decimated surrounding communities.

Call 0207 556 0910 for more info


Greenis Group Structure

Meet the team

Executive team

Cheryl Conroy-Williams, Managing Director of Green IS Projects Limited

As Managing Director Cheryl will oversee the day to day running of the company.

She provides the management structure and support to the technical team to enable them to source, grow and maintain the best forestry to maximize the returns to GIS's clients.

Cheryl’s belief in these products is total, it was this belief that led her to help build the board of directors into the strong force that it is now.

Her vision is that forestry products can be made available to everyone and she believes this can be achieved with the right products, team and regulation, and with her experience in customer relations she is well equipped to make this happen.

Guy Conroy-Williams, CEO of Green IS Group Limited

Guy is one of the founders of GIS which has offices in London, Milan and Brazil.

He has been at the forefront of the managed forestry industry for the last 11 years and has set up and been part of a number of successful forestry business models. His technical knowledge and experience has helped introduce new planting methods and higher yields within the plantation forestry industry, which combined with an ethical approach makes him a valuable member of the GIS team.

Guy has worked within the timber industry in one form or another since leaving school which ultimately led to his interest in plantation Teak and forestry management.

GIS was founded in 2013, as a specialist forestry management company in the green financial products sector with the aim of launching new products to the market with more regulation and added security for clients.

James Williams-Ward, Director of Green IS Group Limited

James has been involved in marketing, graphic design and business support for over 28 years. He started as a marketing trainee where he received a grounding in marketing and business encompassing: PR, Technical Marketing, Market Research and Business Development. He then worked for regional and national contractors covering all aspects of marketing, business development and corporate communication as a Marketing and Business Development Manager.

He is a Chartered Marketer, holds an MBA from Henley Management College and is qualified in graphic design.

Gary Williamson, New Business Director

Gary Williamson is the New Business Director of Green IS Group Limited, where he is responsible for growth, management of the global business, monetisation and day-to-day sales operations. He is also working with the management team to develop GIS into a renowned ethical Forestry Company and to lead it into the growing renewable energy sector.

Gary is a co-founder of GIS alongside Guy Conroy. He is a self-made business man who worked his way up from car mechanic to joint ownership of a car dealership with a multi-million pound annual turnover. He sold his share of this business to pursue his property and development interests. It was at this point in his career that he developed a sound understanding of alternative financial products, initially as a stakeholder and later drawing on his knowledge and experience to act as an advisor to others.

Since becoming New Business Manager in 2013, GIS’s global client base has quadrupled; the company has tripled in size; and GIS has now opened a number of offices around the world.

Cleilton Leite, Operations Director: Brazil

Cleilton is our Operations Director: Brazil. He is fluent in Portuguese, Spanish and English. He has gained excellent administration and exterior commerce experience that he puts to good use in managing our activities in Brazil: maintaining and harvesting our standing teak plantations; managing our teak nursery; over-seeing cut wood activities and all round general management of GreenIS activities.

Cleilton went to high-school in the USA for one and a half years before running a small construction company. Cleilton’s entrepreneurial spirit soon led to him setting up an export company that used to ship computer parts to Brazil.

In 1998 he returned to Brazil and briefly ran a business pioneering internet provision before developing an interest in Forestry when he ran a saplings nursery and acted as a sales agent for a timber investment company.

Cleilton brings a practical can-do attitude to our team and provides GreenIS with an important local presence to help us efficiently manage our Brazilian operations.


UK Team

Rachel Coates, Office Administrator

Rachel Coates is our company Administrator. She has over 15 years’ management experience including building a successful business from scratch in 2004 that she later sold in 2010 in order to start a family.

After a short career break, Rachel has joined our team as a part time administrator. The experience she previously gained managing her own team, banking, accounting and day to day administration is invaluable to Green IS.

Bela Lopes, Business Relations Co-ordinator

Bela has over 25 years’ experience within business administration and law. She has worked with, and trained teams within, the public sector and the MOD running her own company for 15 years.

Bela brings a wealth of experience, drive and determination as well as bilingual abilities coupled with exceptional interpersonal skills and the cultural understanding needed to liaise and co-ordinate business relationships the Portuguese speaking countries. She is passionate about environment and preservation and is excited to work for GIS.


Brazilian Team

Claudiney Ribeiro, Nursery Manager

Claudiney was born and grew up in an agricultural community. After eight years working in a town he decided to return to his agriculture origins and now works as our Nursery Manager.

He has experience of working with many agricultural crops such as coffee, cocoa, cupuaçu, açaí and plantation teak.

Sebastiao dos Reis, Plantation Manager

Sebastiao was born in Parana, Brazil. He has been developing and running businesses for many years.

In 2009 he moved into Teak and is now working with us as our Plantation Manager, bringing a wealth of local knowledge and practical experience in growing and maintaining Teak plantations.

Wilson Filho, Nursery Maintenance Supervisor

Wilson has been involved in agriculture all his life. He has been helping his parents and working on plantations since he was eight years old.

He has experience of working with many agricultural crops such as coffee, cocoa, cupuaçu, açaí and plantation teak.

Agenor Vieira, Wood Classifier

Agenor is native Indian from the Xavantes tribe. He grew up in the jungle in Chingu National Park, Alto Araguaia in the state of Mato Grosso. At the age of 16 he decided to capitalise on his knowledge of timber and the jungle by moving to the city and going to work in a timber business.

During this time he improved his Portuguese and changed his name from his Indian name, Taurymand, to Agenor Medida Vieira.

Agenor still has family living in Chingu National Park.

Isis Barroso, Receptionist

Isis Barroso is our bilingual receptionist. She started learning English whilst working as an au-pair in the United States before returning to Brazil to teach English.

Isis has excellent communication skills having worked at the international airport in Recife-PE, Brazil for three years. She managed a team of more than 20 people and whilst there completed a Computer Systems Analysis course.

Rogério Barroso, Timber Export Manager

Rogério Barroso is our Timber Export Manager, he came to Rondônia when he was a little boy. He brings many talents to the team as he has previously worked as a mechanic, welder and project designer/installer. In addition, Rogério knows the Machadinho D'Oeste region very well and is knowledgeable of the local wood trade. He speaks good English, having worked with American businesses for 12 years.

Ronaldo Castro Priori, Finance Manager

Ronaldo Castro Priori began his career working for an agricultural machinery company whilst studying for last year of his Accountancy course.

At the beginning of 2000 he began work for a local accountant, where he acquired basic knowledge of accountancy in practice before specialising in taxation. In 2007, he began an Accounting Sciences Course and subsequently graduated in 2010.

Ronaldo has held a number of accountancy roles where he has developed his technical knowledge. He joined GIS in 2016 and brings specific knowledge of Brazilian accountancy and taxation rules to the team.