We are a trusted boutique sustainability and environmental consulting firm based in Canada.
We bring personalised guidance, environmental expertise, and climate-change solutions with deep care and collaboration.
Our purpose is to help you feel understood, supported, and empowered to create long-term value.
YellowYellow has been recognized as one of the most trusted sustainability firms by a global directory of sustainability placing 5th out of 300 providers.
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
Posted on Rob MillerTrustindex verifies that the original source of the review is Google. YellowYellow has been a strong partner from day one. Responsive, easy to work with and always one step ahead. They’ve helped 3G to translate complex ideas into practical, cost-effective renewable energy solutions. If you're in need of sustainability support, look no further. Reach out to YellowYellow. They consistently go above and beyond to deliver business value.Posted on Alan CzechowskiTrustindex verifies that the original source of the review is Google. YellowYellow has been a great partner for FLO. Together, we powered up a community with their first-ever EV chargers. YellowYellow managed the funding applications, the business case, the approval process and the selection of suppliers. They also kept the project on track. They know the industry well and how to work respectfully with First Nations. I look forward to working with YellowYellow again!Posted on Curt de GTrustindex verifies that the original source of the review is Google. Very impressed in our first project with Yellow Yellow. Robust and thorough business case used successfully with all funding applications. Well documented. Not afraid to ask questions or be on-site (4 times). Sharp, detail oriented and community focused. I highly recommend engaging with them.Posted on Jason MunroTrustindex verifies that the original source of the review is Google. Thank you for your unwavering commitment and dedication. From strategy development to execution, the YellowYellow team has been instrumental to the success of the electrical vehicle charger project. We look forward to partnering with you again!Posted on Jacob ConsortiTrustindex verifies that the original source of the review is Google. Last week, our firm had the opportunity to participate in a Climate Fresk, led by Lisa Annabel Ellis from YellowYellow. It was an engaging and insightful experience, and we are sincerely grateful for the chance to learn from someone with such deep expertise in the field.Posted on Ernesto Isaias Almeida HernandezTrustindex verifies that the original source of the review is Google. Posted on Yash AroraTrustindex verifies that the original source of the review is Google. We had the absolute pleasure of hosting Lisa Annabel Ellis from YellowYellow as a panelist at the Net Impact Schulich Annual Conference, and it was truly one of the highlights of our event. Lisa brought such depth, clarity, and thoughtfulness to the discussion—sharing not only her rich expertise in ESG and sustainability strategy, but doing so in a way that truly resonated with our students. Her ability to distill complex concepts into real-world insights was incredibly impactful for everyone in the room. You could tell she genuinely cared about driving meaningful change and empowering the next generation of leaders to think critically about sustainable business. YellowYellow is clearly a reflection of Lisa’s values—purpose-driven, insightful, and grounded in action. We're deeply grateful for the knowledge and inspiration she brought to our event, and would wholeheartedly recommend Lisa and her team to any organization looking for expert, thoughtful ESG guidancePosted on Lindy JohnstonTrustindex verifies that the original source of the review is Google. Lisa joined us for our annual Net Impact Sustainability Conference, where she shared unique and insightful perspectives on the business case for sustainability. Lisa exemplifies a pragmatic and articulated approach, demonstrating how sustainability can enhance operations, create value, and mitigate risk.Posted on SasTrustindex verifies that the original source of the review is Google. Posted on zack souckeyTrustindex verifies that the original source of the review is Google. I had the pleasure of working with Yellow Yellow to develop our company's ESG Strategy, and I couldn't be more impressed. From the start, they demonstrated a deep understanding of the evolving ESG landscape and tailored their approach specifically to our business needs. Their team was thorough in conducting interviews, gathering data, and setting realistic yet ambitious goals. They provided clear guidance on integrating sustainable and ethical practices into our operations, making it both actionable and impactful. Highly recommend!Google rating score: 5.0 of 5, based on 25 reviews,showing our latest reviews
Environmental Consulting & 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.
Explore YELLOWYELLOW’s array of environmental consulting services are 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…
YellowYellow guides businesses through the complexities of climate change with services ranging from risk assessment to net-zero strategy formulation.
Stay informed with thought leadership and ESG & Sustainability industry event recaps from the team at YellowYellow.
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 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 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 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 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 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 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 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.