Turning your decarbonization and sustainability challenges into tomorrow's opportunities

Getting a handle on your business’s ESG, decarbonization and sustainability management is no small feat.

But you don’t have to do it alone.

We’re experts in the environmental side of managing companies. That means helping you turn this part of your business into new growth, cost savings and the kind of positive impact stakeholders like to see.

Ready to take the first step towards a greener future?

Our Valued Clients

Our journey towards creating lasting ESG impact wouldn’t be possible without our valued clients. Here’s a glimpse of the companies we’ve had the privilege to work with

How We Help

Strategic planning. Robust reporting and clear communication. Regulatory compliance about climate change, decarbonization and the environment.

We make sense of the complexities around sustainability and responsible business practices, helping you amplify your ESG performance.

You’re kept current, compliant and moving your business forward.

ESG Services for Sustainable Growth

Explore YELLOWYELLOW’s array of ESG (Environmental, Social, and Governance) services designed to empower organizations in navigating the complexities of sustainability and responsible business practices. From strategic planning and robust reporting to ensuring regulatory compliance and addressing climate change through decarbonization efforts, our tailored solutions drive meaningful impact and pave the way for a more sustainable future.

YellowYellow offers a streamlined approach to ESG integration, starting with a thorough needs assessment, followed by custom strategy formulation and goal-setting.

YellowYellow excels in transparent ESG reporting, regulatory compliance, and audit preparation. We align with global standards like SASB, IFRS, GRI, and TCFD, offering…

green ground vs water with tree

YellowYellow guides businesses through the complexities of climate change with services ranging from risk assessment to net-zero strategy formulation. 

What Our Clients Say

The success of our clients is the truest measure of our work. Hear directly from those who’ve experienced the transformative power of YellowYellow’s ESG solutions

Corporate Social Responsibility Society CSRS
Corporate Social Responsibility Society CSRS
The experts at YellowYellow led a dynamic ESG 101 workshop in downtown Toronto for 80+ Schulich, TMU and UofT business students as part of our CORE Conference. As the conference organizers, we were impressed at how they managed to blend their high level of knowledge with engaging and interactive content. They made learning about ESG an educational and surprisingly fun experience. Thank you to YellowYellow for joining us in marking our 20th year!
contact ensogo
contact ensogo
If your organization seeks guidance on ESG initiatives, look no further than the YellowYellow team. They excel in aligning sustainability with business value to create customized solutions that perfectly fit your unique needs. In response to the ever-changing and intricate nature of ESG, the team has eagerly adopted ensogo's advanced technology, enhancing stakeholder engagement and fostering the delivery of sustainable value.
Matthew Lynch
Matthew Lynch
Lisa is one of the most thoughtful and knowledgeable people I have met working in the field of corporate sustainability/ESG. I highly recommend taking the opportunity to work with her/YellowYellow.
Angela Hsu
Angela Hsu
Grateful for your amazing support in crafting our first-ever ESG report!
Nigel Etherington
Nigel Etherington
Over the past few years, I’ve had the great opportunity to collaborate with YellowYellow on several net-zero projects. Their commitment and execution are exemplary and I look for opportunities to work with them again.
Julia Gartley
Julia Gartley
YellowYellow played an instrumental role in getting our ESG efforts off the ground. Thank you for partnering with us on this important initiative
Madelyn Webb
Madelyn Webb
Thanks for your help as a project manager with the Environment Canada and Climate Change community climate adaptation project!
Floyd Buhler
Floyd Buhler
I am thrilled to write this well-deserved 5-star review for YellowYellow, the outstanding consulting company that assisted my company, Sigfusson Northern Ltd., in developing our ESG Strategy report. Their expertise and dedication throughout the entire process were truly commendable. From the initial consultation to the final deliverables, YellowYellow displayed an exceptional level of professionalism and knowledge. Their team demonstrated a deep understanding of environmental, social, and governance (ESG) principles, and their guidance was invaluable in shaping our company's sustainability strategy. YellowYellow's consultants took the time to thoroughly assess our company's unique needs and goals. They meticulously analyzed our operations, identifying key areas where we could improve our ESG performance. Their ability to quickly process all of our information, including creating a competitive analysis for us, was truly impressive. Throughout the collaboration, YellowYellow consistently exceeded our expectations. Lisa, Lindsay and the team were not only experts in their field, but also excellent communicators. They were able to break down our needs in a simple in clear manner. What impressed us most about YellowYellow was their dedication to our success. They genuinely cared about the impact our company could make and were committed to helping us achieve our sustainability goals. Their guidance went beyond the report itself, as they are providing ongoing support and advice to ensure the successful implementation of our ESG strategy. Furthermore, the level of professionalism exhibited by the entire YellowYellow team was exceptional. They were always prompt, responsive, and reliable. They have met all project deadlines without compromising the quality of their work, demonstrating their commitment to delivering excellence. I highly recommend YellowYellow to any organization seeking assistance with developing an ESG Strategy or any sustainability-related initiatives. Thank you, YellowYellow, for your exceptional service and for helping Sigfusson Northern Ltd. develop a robust ESG Strategy. We look forward to continuing our partnership with you in the future. Sincerely, Floyd Buhler Director of HSE at Sigfusson Northern Ltd.
Lindsay Lapchuk
Lindsay Lapchuk
Thanks to the YellowYellow team for jumping in to provide guidance on the development of our social impact strategy. Super smart team. Fun to work with. Highly recommend.
Lisa Gibbs
Lisa Gibbs
The YellowYellow Team consistently demonstrated their expertise, enthusiasm and so much more. Thank you for your valuable research and insights on key topics! Thanks also for creating a clear and customized road map to build out the “E” in our ESG efforts.

YellowYellow News

Stay informed with thought leadership and ESG & Sustainability industry event recaps from the team at YellowYellow.

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Jeff Garcia-Seminario

AssociateSenior Associate, Social Impact
Jeff brings global experience in leading corporate social responsibility (CSR) and community engagement projects in the extractive sector.   Jeff excels in stakeholder mapping, community engagement, and conflict resolution.   Applying his private and public sector experiences, Jeff can bridge cultural and historical divides between extractive industries and their communities.  His areas of focus include food security, sustainable procurement, and good governance. Most recently, Jeff contributed to the development of an ESG strategy for a multi-national company.  
Jeff’s native language is Spanish. He enjoys morning runs in the neighboring parks. 

Kaitlyn D'Lima


Kaitlyn D’Lima holds both a Bachelor of Business Administration and a Master of Science and Sustainability Management degree from the University of Toronto.   She is also trained in greenhouse gas (GHG) accounting.

She brings extensive experience in sustainability and business transformational projects. She is known for her ability to execute projects of any size with both urgency and accuracy.   Kaitlyn has a natural talent for improving stakeholder engagement. She’s a real trailblazer when it comes to benchmarking and research.

Kaitlyn is a runner who participates in outdoor adventure races.

Arun Balu Pazhayannur


Arun B Pazhayannur holds a degree in mechanical engineering and is a Chartered Accountant. He also has an MBA from the Ivey Business School at the University of Western Ontario. Along with his academic achievements, he has a thorough knowledge of Environmental, Social and Governance (ESG) principles, which he incorporates into his consulting work. 

Arun is well-known for his leadership abilities as well as his strong skills in data analysis, financial modeling, and operations management. He has been recognized for his ability to identify practical solutions and deliver value to clients ranging from banks to payment companies to software providers. Arun is also a past President of Toastmasters Club. 

In his free time, Arun enjoys scuba diving.In his spare time, Arun likes to scuba dive. 

Gregory Donovan

Senior Advisor

Gregory  Donovan is a Chartered Accountant. He is a Fundamentals of Sustainable Accounting (FSA) Credential Holder.  He obtained an Honours in Business Adminstrations (HBA) from the Ivey Business School (Western University) and a Master or Laws (LLM) from the London School of Economics. Gregory is the CEO of Avondale Private Capital, a sustainable finance firm focused on energy transition finance and carbon markets.  He has presented on these topics at conferences in Canada, the US and UK.  

Greg participates in the occasional triathlon and loves to go skiing and sailing with his two young children.

Margaux Loptson

Associate & US Operations Lead

Margaux Loptson holds a Bachelor of Arts (Psychology) and a Bachelor of Arts (Criminology) from Pennsylvania State University. In addition, she holds several research certifications, including Ethical Conduct for Research Involving Humans

She has been an essential player in AI-powered teaching and learning projects as a User Experience (UX) lead.  Margaux is known for applying her design thinking, problem-solving and analytical skills to make a positive impact. She is a native French speaker

Margaux is a fitness enthusiast who can be found hiking around Central Park in NYC.

Ritika Jain

Associate / Responsible Supply Chain Lead

Ritika Jain holds a Masters in Environmental Sciences, Policy and Management from Lund University (Sweden)  and a Bachelor of Technology from Indraprastha University (India). As a lifelong learner, she is pursuing a Graduate Diploma in Corporate Social Responsibility and Sustainability at the University of Toronto.

Ritika is a recycling and responsible supply chain specialist.  Through her work, she collaborates with organizations to implement circular economy focused policies to ensure compliance with regulations.  

Her proficiency in data analytics and with the Global Reporting Initiative (GRI) enable her to manage complex sustainability data. Ritika also volunteers with the UN Sustainable Development Solutions Network, engaging with youth to drive positive change.  

Ritika is a native Hindi speaker.  She is a certified hiking leader who enjoys travelling.

Jonathan Spence

Associate & Western Canada Operations Lead

Jonathan Spence holds an Honours Bachelor of Integrated Sciences (Earth and Environmental Sciences) from McMaster University and has his certification in Geographic Information Sciences from the ESRI Canada Center of Excellence at McMaster University. Jonathan worked as a research analyst in the environment and sustainability group for a TSX listed company.  

He is pursuing his Ph.D. in Earth and Atmospheric Sciences at the University of Alberta, where he is researching the development of carbon capture techniques and their applications to the mining industry.  Jonathan is focused on helping companies to minimize their carbon footprint while supporting their economic growth.   

Jonathan is an avid water polo player and coach. He plays for the local National Championship League team. 

Gurnoor Gandhi

VP Business Development & Strategic Partnerships

Gurnoor Gandhi holds an MBA from Ivey Business School (Western University) and a postgraduate diploma in Maritime Energy Management (Sweden). Gurnoor brings experience with sustainability frameworks including TCFD, GRI, and CDP and is pursuing FSA credential (SASB). 

Gurnoor has global leadership experience in the shipping industry managing assets worth millions of dollars on the high seas and has led diverse teams worked in Monaco, Singapore, and India. Most recently, he led organizational development and client partnerships at CARD, a non-profit focused on rural development and renewable energy.

Gurnoor brings a blend of technical and leadership skills. He applied his knowledge of greenhouse gas accounting and carbon capture to support clients with niche energy transition projects. He is known for putting his problem-solving, stakeholder management, and project management skills to work to help firms expedite their ESG Journey. 

Gurnoor is a certified BMW adventure motorcyclist who finds off-road rides rejuvenating for body and spirit.  He enjoys hiking with his family.

Lisa-Annabel Ellis

Founder & CEO

Lisa Annabel Ellis holds an Honours Bachelor of Science (Environmental Science) from the University of Toronto and an MBA from the Ivey Business School (Western University). She is a certified Project Manager Professional (PMP) with a Six Sigma Green Belt. Lisa is a Fundamentals of Sustainable Accounting (FSA) Level II Candidate. Applying her deep expertise in business and operational strategies, she has led award-winning transformational initiatives.

Drawing on her well-rounded science and finance expertise, she launched YellowYellow to help clients advance their sustainability practices. As an advocate of transparency and good governance, she partners with clients to understand their risks and opportunities to generate superior long-term value. Stakeholders across the value chain recognize the impact of this effort. She has been called upon to be a keynote speaker and lecturer.

Lisa is an advanced scuba diver who enjoys most water-related sports.