About Us
Experts Who Stay Involved
At CSS, we are a boutique advisory team dedicated to unlocking capital for
Africa’s sustainable future. Since 2014, we have mobilised over USD 500m for
climate and development projects by combining deep financial fluency, local
insight, and innovative thinking.
We believe real change happens when strategy meets execution. Our senior
experts stay hands-on throughout every project, ensuring each engagement is
rigorous, relevant, and designed for impact.
Our Team
Megan Sager
Director
Specialist in sustainable finance with 15 years of experience in climate strategies,
transaction structuring, and financial
instruments. Has mobilised more than ZAR
500m locally and USD 500m globally. MSc in Economics for Development, Oxford
University.
Inge Rist
Engagement Lead
Engineer and Oxford MBA with five years in
climate and finance consulting. Leads
delivery across energy, agriculture, and
mining. Experienced in ESG integration for
financial institutions and their investees.
James Trotter
Finance Lead
Chartered Accountant with more than a
decade of experience in finance and ESG
reporting. Former executive director of a
green SME. Leads financial modelling and
integrated reporting.
Colenso Holder
Associate
Associate in sustainable finance instrument
design and transaction advisory. Supports
feasibility studies and capital-raising in
renewable energy and critical minerals. CFA
Level III candidate.
Megan van Schalkwyk
Analyst
Focuses on carbon markets and international
finance strategies. Holds a BComHons in
International Business and is completing a
Masters in Business Management.
Chumisa Matiwane
Accountant
Accountant with strong interest in internal
controls and reporting efficiency. Pursuing
SAIPA designation.
Jason Kelbrick
Associate
Associate specialising in carbon markets and
financial analysis, with experience in climate
finance, project development and due
diligence. Focused on unlocking private
capital to scale high-impact climate solutions.
Yuvir Naidoo
Researcher
Focuses on strengthening our knowledge
base in climate-critical sectors through
sustainability-focused research
methodologies and policy analysis.
Completing an MCom in Economics.
Yonela Gcelu
Project Manager
Supports project delivery and operational
efficiency. Passionate about sustainable
development and collaborative solutions.
Our Values
Innovative
We create solutions where
traditional finance stalls
Trusted
Our work is credible and client-ready
Collaborative
We co-create with clients and
partners for stronger results
Fair
We balance profit with purpose,
guided by integrity
Trusted minds we call on
André Harms
Electro-mechanical engineer and founder of
a green-building and sustainability
consultancy, with experience spanning
industrial design, homologation, and a 14-
month SANAE Antarctic posting. A certified
Renewable Energy Professional (AEE), GBCSA faculty/technical advisor, and lecturer at SUMAS (formerly at UCT).
Benno Guenther
Expert in structuring, valuing, and riskmanaging large-scale carbon offset and
energy-transition projects, with deep options/structured-products trading experience in
energy and emissions. Holds a PhD (LSE) on research on risk-taking in crises and is a
visiting lecturer in financial risk management at UCT.
Andrew Gilder
Leading South African climate-change and
carbon-markets lawyer with nearly two
decades in private practice, advising on
climate law, policy and governance (including drafting national legislation), carbon finance and tax, carbon market strategy and contracting, air quality, energy, and environmental law.
Kamleshan Pillay
Climate-risk and adaptation-finance
specialist with international experience,
focused on adaptation finance. He has
worked on climate-finance initiatives with
South Africa’s Department of Environmental
Affairs, the Norwegian Government (KLD and Ministry of Foreign Affairs), UNIDO, SADC, UNDP (Somalia and South Africa), and NORAD.
Strategic Partners
Our network of partners is a key advantage, representing experts across a range of
disciplines, industries, and geographies. CSS regularly collaborates with professionals to craft solutions that overcome conventional technical and financial constraints.
Genesis Analytics
One of the first economics-based consultancy firms established in Africa, Genesis Analytics has grown into the
largest of its kind. More than 45% of its work now takes place outside South Africa, with over 400 clients and hundreds of projects across 32 African countries. Its
purpose is to unlock value in Africa — a mission that aligns closely with CSS’s own.
Emergent Energy
Emergent Energy offers expertise in renewable energy systems, sustainable building design, energy efficiency,
and renewable energy policy. Fully owned by Fedgroup, a Level 2 B-BBEE contributor, Emergent is a leading EPC with over 80 operational sites and access to funding through Fedgroup.
Giving back, moving forward
Supporting Youth
CSS sponsors a female learner from rural Limpopo at an independent school. She receives personalised learning and
digital skills training. This initiative honours the legacy of women driving change in South Africa.
Minimising Our Footprint
We work from a low-impact Green Hub office built with ecoconscious
local materials. We closely monitor energy and water use with a goal of net zero Scope 1 and 2 emissions and are committed to reducing Scope 3 emissions.
Join Us
At CSS, we welcome bright, driven professionals who want to shape the future of sustainable
finance. Joining our team means working alongside pioneers, gaining exposure to global
thought leaders, and contributing to solutions that matter.
We offer a supportive, collaborative culture where mission-driven talent thrives. Continuous
learning, professional growth, and work-life balance are central to how we work.
If you are ready to become a CSS changemaker, send your CV to info@sustainablesolutions.co.za.
