The sustainability speaker who also runs the room.
Matthias gives keynotes, chairs conferences and leads ESG workshops that turn sustainability into sales, savings and growth. He has spoken in 42 countries, given five TEDx talks and served as ESG Advisor to the Philippine Stock Exchange.
Voted Greenest Person on the Planet by 3rd Whale, Canada
2016
Green Icon of the Year, Asia Pacific CSR Awards
2024
Global Sustainability Advocate and ESG Innovator of the Year
2026
FAMAS Prestige Excellence Award in Global Environmental Sustainability
One booking covers three jobs on your programme.
Most speakers give the talk and leave. Matthias can open the day, chair the sessions in between and run the afternoon workshop, so organisers fill three slots with one booking and one brief.
01
Keynote speaker
45 to 60 minutes on why sustainability makes money, built around your sector and your numbers. Stories, humour and live demonstrations, and sometimes no slides at all.
In person or virtual. Keynote, opening address or after-dinner talk.
02
Conference chair and moderator
He keeps the day to time, links each speaker to the next and gets the audience talking. He prefers dynamic, unscripted panels to a list of set questions.
Half-day or full-day chair, panel moderator, roundtable host.
03
Workshop facilitator and trainer
Two-hour sessions, one- and two-day workshops and the four-day CESGI certification. Teams work through their own numbers and leave with a company-level action plan.
In-house or public. HRD Corp claimable in Malaysia for CESGI.
Testimonials and feedback, exactly as they were sent.
Letters, emails, LinkedIn posts and messages from organisers, clients and participants. Tap any picture to read it full size.
Six talks. Every one is tailored to your sector.
Before each booking Matthias holds a short scoping call and rebuilds the examples, numbers and exercises around your industry. Each two-page outline shows what your audience takes away. Tap a page to enlarge it.
Beyond Compliance
1-hour keynote on IFRS S1 and S2, tailored to your organisation
Large companies across Southeast Asia have signed science-based climate targets. To meet them they have to cut the emissions in what they buy, so a supplier's carbon numbers are becoming part of the deal.
Carbon Contract Finder, led by Matthias Gelber, shows suppliers which companies in their markets have committed to these targets, what those targets say, and where there are live openings to pitch today.
01
Pick what you sell
Packaging, food and agriculture, chemicals, building materials, electronics, logistics or facilities.
02
Choose your goal and markets
Win new business or protect existing contracts, in Malaysia, Singapore, Indonesia, Thailand, the Philippines and Vietnam.
03
Get your report
Buyers with SBTi targets ranked by fit, live openings, and your next three moves.
Keynote and training talk
Book Carbon is the new contract for your event.
Matthias also gives Carbon is the new contract as a talk for suppliers, their sales and procurement teams, and supply-chain events. Your team leaves knowing which buyers in its markets have climate targets, how to find, cut and put a number on the carbon in its products, and how to use lower-carbon products to win new contracts and keep the ones it has.
CESGI is Matthias's own ESG certification, run with iTrain Malaysia. It is vendor-neutral and industry-validated, and every participant who passes the exam receives a certificate and a blockchain-verified Credly digital badge.
Four days, including the exam
HRD Corp claimable for Malaysian employers
Certificate on completion and a Credly digital badge
A German environmental scientist who made ESG entertaining.
Matthias grew up in a German village surrounded by forest, studied chemistry at the University of Siegen and took his master's in environmental science at Brunel University in 1994. He has worked on sustainability ever since.
He has advised companies, governments and development banks such as the Asian Development Bank, spent two years as ESG Advisor to the Philippine Stock Exchange and served as Net Zero Ambassador for DesertBoard in the UAE. He co-founded Maleki GmbH and IndoorCare, and created the CESGI certification.
Some proof that he lives it: he published a book printed on recycled paper with ink made from mushrooms, and in 2017 built Southeast Asia's first off-grid tiny eco home, in Malaysia. He speaks English and German.
For speaker bureaus: everything you need to propose him.
Bookings that start with a bureau stay with that bureau. If your client contacts Matthias directly, he sends them back to you.
Known as
The GreenMan
Based in
The Philippines, working across Asia, the Middle East and Europe
Decarbonisation, IFRS S1 and S2, ESG ROI, employee wellness, ESG and AI, biodiversity
Fee
On request, by format and location
Short bio
Matthias Gelber, known as the GreenMan, shows organisations how to turn sustainability into sales, savings and growth. Voted Greenest Person on the Planet in 2008, he has spoken in 42 countries, given five TEDx talks and served as ESG Advisor to the Philippine Stock Exchange. He gives keynotes, chairs conferences and runs ESG workshops, and created the Certified ESG Innovator (CESGI) programme.
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