You need expertise, flexibility &
hands-on experience
You need specific expertise at specific moments. Carbon footprinting. Materiality assessment.
Transition planning. But hiring for every specialty isn’t realistic.
Climate &
We’re an Amsterdam-based sustainability collective helping organisations
You know you need to move on sustainability. But the path forward isn't clear.
You have a strategy. Now what?
Your sustainability roadmap looks great on paper. But translating it into concrete projects, timelines, and responsibilities feels impossible. And your team is already stretched thin.
Tired of slide decks that go nowhere
You’ve worked with consultants before. They delivered beautiful presentations. Then left. And you’re still stuck figuring out how to actually implement their recommendations.
Requirements keep shifting
Just when you think you understand what’s required, the rules change. ESG reporting, carbon disclosure, due diligence. You need expertise that stays current.
Can't afford full-time expertise
You need senior sustainability talent. But hiring permanent staff isn’t realistic (yet). Or you can’t find the right person.
You need expertise, flexibility &
We’re your sustainability partner. Not just a consultant.
The Overview Effect is a collective of sustainability experts who work with you, not for you.
We bring senior-level expertise without the enterprise price tag and help you implement from day one.
Part of Your Team
We become part of your team. We understand your constraints, adapt as priorities shift, and own outcomes alongside you. When you face challenges, we face them with you.
Value From Day One
The work starts immediately. We build your carbon footprint, co-run your workshops, and train your team. Tangible outcomes that move you forward, with knowledge transfer built into how we work.
Collective Model
Consulting done differently. One engagement gives you access to 20+ specialists across our collective. Senior consultants with enterprise experience. Fair pricing through an entrepreneurial model with lower overhead. Scale flexibly as needed.
Strategic Sustainability
Partner with people who see sustainability as business strategy, resilience and shared long-term value creation. We push you to set ambitious targets. Challenge comfortable answers. Build strategies that create real business value and competitive advantage.
We help you navigate through all frameworks:
Colleagues felt overwhelmed at first.
But by breaking things down into manageable
steps and asking the right questions, The Overview Effect
helped turn this challenge into a starting point for real change.
-Nicolet Keetelaars
ESG Manager, Blycolin
Three ways to work with us
Whether you need strategy, implementation, reporting, or climate expertise –
we can deliver it through the engagement model that fits your needs.
Interim Sustainability Support
What it is:
Part-time sustainability professional embedded in your team
Best for:
Companies building or scaling sustainability function across strategy, implementation, and climate action
Typical engagement:
2-3 days/week, 6-12 months
You get:
Strategic direction + hands-on implementation across all sustainability topics
Examples:
Building ESG strategy, leading sustainability reporting, driving climate transition planning
Project-Based Expertise
What it is:
Focused support for specific challenges or deadlines
Best for:
Defined projects like carbon footprinting, materiality assessments, or climate transition planning
Typical engagement:
3-6 months, clearly defined scope
You get:
Deliverables + knowledge transfer to your team
Examples:
Complete materiality assessment, conduct carbon footprint, build SBTi-aligned roadmap
Specialist On-Demand
What it is:
Expert support when you need it most
Best for:
Gap-filling, technical deep-dives, specific expertise (e.g., Scope 3, B Corp, CDP)
Typical engagement:
Flexible, from days to months
You get:
Precise expertise without long-term commitment
Examples:
Scope 3 calculation support, B Corp application, stakeholder workshop facilitation
From strategy to execution across four core areas
Whether you’re building your sustainability foundation, implementing programs, meeting reporting requirements, or driving climate action – we have the expertise to move you forward.
STRATEGY & MANAGEMENT
Start with clarity. We help you understand what matters most, set realistic ambitions, and build a roadmap that works for your business.
What’s we can help with:
- Double Materiality Assessment (DMA)
- Sustainability strategy design
- Vision & ambition setting
- Gap analysis & roadmapping
- Stakeholder engagement
- Governance set-up
Best for: Companies starting their sustainability journey or need to refocus their approach
IMPLEMENTATION & EXECUTION
Turn strategy into action. We work alongside your team to implement programs and build internal capacity.
What we can help with:
- Employee engagement programs
- Flexible execution support
- Capacity building (training & workshops)
- ESG tooling implementation* (*via ecosystem partner DFB)
Best for: Companies ready to activate their sustainability strategy
REPORTING & COMPLIANCE
Meet reporting requirements and rating expectations with confidence. We help you navigate complex frameworks and prepare for external assessments.
What we can help with:
- Ratings: CDP, EcoVadis
- Reporting frameworks: ISSB*, GRI, CSRD, VSME
- Certifications: B Corp, TCFD
- Assurance readiness: EUDR*, audit preparation* (*via ecosystem partner DFB)
Best for: Companies facing reporting obligations or seeking sustainability ratings
CLIMATE
From understanding your baseline to identifying reduction levers, setting SBTi target to engaging suppliers. We support the full climate transition plan tourney, from measurement to transformation.
What we can help with:
- Science-based target setting (SBTi)
- Scope 3 carbon accounting
- Value chain engagement
- Climate transition planning
- Climate risk assessment
- Decarbonisation roadmaps
- Carbon footprinting
Best for: Companies serious about climate leadership
Not sure where to start?
Most companies don’t need everything at once.
In a free consultation, we’ll help you identify which areas to prioritize.
We partner with companies at every stage
of their sustainability journey
From small businesses taking their first steps to enterprises driving ambitious transformation.
We customize our approach to your size, stage, and priorities.
For growing companies
Your situation:
- < 250 employees, < €100M revenue
- You’re taking your first steps in sustainability
- You need to respond to customer or investor questions
- You don’t have dedicated sustainability staff
- You want to build a foundation without overcomplicating things
What we typically focus on:
- Strategy: Materiality assessment, roadmaps, quick wins
- Climate: Carbon footprint (Scope 1 & 2), basic reduction planning
- Reporting: Understanding what’s coming, gap analysis, rating preparation
- Implementation: Practical first steps, internal awareness building
Common engagement types: Project-based support or specialist on-demand
For mid-market companies
Your situation:
- 250-3,000 employees, €100M-€1B revenue
- You’re building or implementing your first real sustainability strategy
- Reporting requirements are approaching (or already here)
- You’re preparing for future requirements or getting ahead of them
- Hiring a full-time sustainability manager or growing your sustainability team isn’t realistic yet
What we typically focus on:
- Strategy: Foundation-building – DMA, strategy design, roadmapping
- Climate: Carbon footprinting (full Scope 1-3), reduction planning
- Reporting: Gap analysis, reporting readiness, rating preparation (CDP, EcoVadis)
- Implementation: Governance setup, internal capacity building
Common engagement types: Interim support or project-based expertise
For established enterprises
Your situation:
- 3,000 employees, > €1B revenue
- You have sustainability goals but struggle with execution
- Small sustainability team stretched across too many topics
- New areas emerging: nature, water, biodiversity, circularity, human rights
- Stakeholder expectations are increasing (investors, customers, regulators)
What we typically focus on:
- Climate: SBTi target-setting, full Scope 3 accounting, transition planning
- Reporting: Sustainability reporting, assurance readiness, ratings (CDP, EcoVadis)
- Strategy: Stakeholder engagement, governance optimization, emerging topics (nature, biodiversity, circularity)
- Implementation: Employee engagement programs, supplier collaboration
Common engagement types: Specialist on-demand or project-based expertise
Why forward-thinking companies choose us
Young, mission-driven team
We’re here for impact, not just invoices
Collective model
Specialist expertise without Big Four pricing or overhead
Plain language
No consultant jargon. We explain things clearly.
Partnership approach
We work with you, not for you. Your success is our success.
Implementation focus
Execution starts as soon as possible.
Flexible deployment
Scale up or down based on your needs and budget
Meet the team behind The Overview Effect
We’re a collective of 20+ sustainability professionals. Entrepreneurial professionals,
industry veterans, and passionate specialists who believe business can be a force for good.
Jessica
Venture Partner & Data Strategy Expert
Lena
Co-founder
Janne
Sustainability & ESG Consultant
Olivier
Co-founder
Tim
Sustainability consultant
Koen
Co-founder
Mark
Junior Sustainability Consultant
Nick
Partner
Jip
Senior Sustainability & CSRD Consultant
Pascal
Sustainability, Innovation & Digital Consultant
Bodine
Sustainability & Behavioral Consultant
Jacques
Sustainability & Change Management Consultant
Stan
Junior Consultant
Melati
Junior Consultant
Koen
Co-founder
About Koen
After years of working as a freelancer within a collective, Koen seized the opportunity to help build The Overview Effect.
His journey toward sustainability has not been linear. Initially uncertain of his direction, he completed a master’s in Business & IT at the Erasmus University. While his peers joined strategy consultancies and tech giants, Koen felt compelled to seek deeper meaning. His concern about climate change – ironically sparked by extensive travels – led him to start his career in the energy transition sector. Over the decade, his focus has broadened to the broad field sustainability is today. At The Overview Effect, Koen’s mission is to mobilize and empower top sustainability professionals for more impact.
Get to know Koen better: read his interview on co-founding The Overview Effect!
Lena
Co-founder
About Lena
As a co-founder of The Overview Effect, Lena is committed to creating a workplace where joy, idealism, and optimism are at the heart of driving sustainable change.
With ten years in the field, including founding roles and consulting, Lena advocates for a business model that prioritizes the planet and people over profit. She champions a collaborative approach, encouraging us to rethink competition, assess our real needs, and foster generosity among colleagues to achieve collective success.
Get to know Lena better: read her interview on co-founding The Overview Effect!
Olivier
Co-founder
About Olivier
Originally from Switzerland, Olivier now calls the Netherlands home, attracted by its innovative approach to sustainability.
As a co-founder of The Overview Effect, he excels in developing sustainable strategies and calculating carbon footprints, leveraging over eight years of experience in sustainability consulting and ESG software implementation. Olivier’s passion for sustainability was sparked early on by his family’s involvement in car sharing and fair trade during the early ’90s. He now leads The Overview Effect’s Young Professionals program, empowering the next generation to drive impactful change.
Get to know Olivier better: read his interview on co-founding The Overview Effect!
Jessica
Venture Partner & Data Strategy Expert
About Jessica
Jessica Boekhoudt RA is the founder of Data For Better, a consultancy powered by The Overview Effect, bridging financial performance with sustainable impact. With a background at a Big Four accounting firm, Jessica brings extensive expertise in finance and sustainability assurance, supporting companies in compliance and readiness.
Through her collaboration with The Overview Effect, Jessica helps businesses align financial reporting with sustainability goals and navigate assurance complexities. As a lecturer at Erasmus University, she equips professionals to leverage sustainability data for impactful, responsible decisions, amplifying The Overview Effect’s mission of driving data-driven solutions for a sustainable future.
Jip
Senior Sustainability & CSRD Consultant
About Jip
With a talent for bringing clarity to complexity, Jip has a gift for translating sustainability ambitions into actionable strategies. Her work spans CO2 calculations at ANWB Retail to Net Positive initiatives at the Johan Cruijff ArenA, always driven by her belief in collaboration for lasting change.
As a certified B-Leader, Jip is passionate about using business as a force for good. Outside work, she’s happiest outdoors or hosting cozy game nights. At The Overview Effect, Jip combines her structured, enthusiastic approach with her passion for nature to make sustainability tangible.
Mark
Junior Sustainability Consultant
About Mark
Motivated by the urgency of climate action, Mark combines a sharp analytical mind with enthusiasm, positivity and a passion for creating meaningful impact.
During his master’s in Global Business & Sustainability at Erasmus University, he wrote his thesis on the CSRD adoption of Dutch Financial Institutions and gained hands-on experience in ESG reporting during an internship at ABN AMRO. As an account manager at AIESEC, he honed his skills in problem-solving, building strong client relationships and fostering collaboration. Beyond his professional pursuits, Mark is a sports enthusiast who enjoys football, calisthenics and running, and he is also interested in foreign languages.
Now part of The Overview Effect’s Young Development Program, Mark is eager to support organizations in reducing their environmental footprint and embracing sustainable transformation.
Pascal
Sustainability, Innovation & Digital Consultant
About Pascal
Driven by a passion for aligning innovation with impact, Pascal’s experience spans continents and industries. As Global Director of Innovation & Sustainability at SHV, he spearheaded transformative projects in Europe and Latin America.
Known for his collaborative spirit and expertise in ESG and digital transformation, Pascal brings bold ideas to life. Now at The Overview Effect, he focuses on empowering businesses to embrace sustainable practices through people-focused digital transformation. For Pascal, every project is an opportunity to make a meaningful difference.
Janne
Sustainability & ESG Consultant
About Janne
Fueled by a passion for climate justice, Janne combines analytical expertise with a social and optimistic approach to driving sustainable change. In her work, she empowers organizations to develop impactful ESG strategies, achieve CSRD compliance, and translate data into meaningful action—for example through CO₂ analysis or by working on circular concepts.
Her work is grounded in an interdisciplinary academic foundation, blending social sciences with business administration, complemented by specialized expertise in sustainability.
Beyond her professional role, Janne volunteers as an SDG Voice to inspire others toward the Sustainable Development Goals. She loves vegetarian cooking, board sports such as snowboarding, kitesurfing and skateboarding, exploring new experiences and fostering connections. At The Overview Effect, Janne transforms ambition into action, helping organizations embrace sustainability with purpose and impact.
Nick
Partner
About Nick
Nick brings a wealth of experience to The Overview Effect, having honed his skills at The Big Four and as a partner at ERM, where he led a market-leading sustainability consultancy.
Today, he’s dedicated to supporting sustainable entrepreneurs, helping them maximize their journey’s potential. Nick is passionate about building bridges that enhance collaboration, drive results, and amplify impact. With his extensive network, Nick excels in creating synergistic partnerships where the collective outcome is greater than the sum of its parts—truly embodying the 1+1=3 philosophy.
Melati
Junior Consultant
About Melati
Driven by a passion for sustainability and a scientific mindset, Melati brings a unique blend of analytical rigor and strategic insight to The Overview Effect.
Melati works as a Junior Consultant while participating in the Young Development Program. She explores diverse sustainability challenges, develops her expertise, and supports businesses in moving beyond compliance towards real impact. Melati’s strength lies in her ability to connect technical and social aspects of sustainability, helping organizations build credible and resilient strategies.
Beyond her role, Melati’s creativity shines through her love for singing, dancing, making music, and enjoying concerts, museums, and festivals. A fun fact: her name comes from an Indonesian flower, a tribute to her roots.
Tim
Sustainability consultant
About Tim
From the moment he watched An Inconvenient Truth in high school, Tim knew he wanted to dedicate his career to sustainability.
At The Overview Effect, Tim helps businesses decarbonize while unlocking strategic advantages. His pragmatic, no-nonsense approach to sustainability is rooted in the belief that businesses shouldn’t make decisions based on today’s reality—they should prepare for tomorrow’s opportunities. As Tim puts it: “The energy transition train has left the station—next stop: cheap energy!”
Bodine
Sustainability & Behavioral Consultant
About Bodine
Fueled by a passion for behavioral science and sustainability, Bodine bridges the gap between strategy and human engagement.
Bodine supports sustainability managers in engaging their workforce using behavioral science-based research and hands-on interventions. She also helps companies achieve B Corp Certification, translating ambitions into actionable impact.
Beyond her role, Bodine is a Climate Fresk facilitator, keynote speaker, and community builder. When she’s not driving sustainability initiatives, you’ll find her kitesurfing or ski touring, constantly seeking new challenges.
At The Overview Effect, Bodine helps organizations embrace sustainability by focusing on the human side of change—because transformation begins with people.
Stan
Junior Consultant
About Stan
Stan recently joined The Overview Effect as a Junior Consultant, bringing a fresh perspective and enthusiasm to the team. This role marks the start of his journey in sustainability consulting, and we’re excited to support his growth and development.
Stan is also part of the Young Development Programme, where he will be sharpening his skills and gaining valuable insights into the sustainability consulting field over the next two years. His commitment to learning and dedication to making an impact align perfectly with our approach at The Overview Effect. Stan’s energy and commitment to sustainability are a great fit for our team. We’re looking forward to seeing his impact and supporting his journey.
Jacques
Sustainability & Change Management Consultant
About Jacques
Jacques joins The Overview Effect as a Sustainability & Change Management Consultant, bringing over a decade of experience embedding ESG into global organizations.
Raised in Kenya with a passion for environmental protection, Jacques specializes in transforming sustainability from compliance into strategic value. His expertise spans CSRD implementation, governance design, and organizational change, from shop floor to boardroom. He’s supported companies ranging from the world’s largest commercial vehicle manufacturer to Dutch cooperatives in making sustainability a driver of business success.
At The Overview Effect, Jacques works alongside clients to build ownership and momentum for sustainability initiatives. His approach combines strategic insight with hands-on implementation, ensuring change sticks.
Outside work, you’ll find him touring on his motorbike, trying street food, or competing in Magic: The Gathering.
Ready to turn commitments into action?
Book a free 30-minute call with one of our specialists. We’ll discuss your priorities, answer your questions, and help you figure out the smartest next steps.
