The #1 Podcast for ClimateTech Entrepreneurs

CleanTechies Podcast

We are CleanTechies, the #1 Podcast for ClimateTech Entrepreneurs. Whether you’re an active ClimateTech entrepreneur, an aspiring one, an investor, a service provider…anything that touches supporting early stage climate tech, this is the place for you. Each week, we publish two interviews with leading experts in the field telling their stories, insights, and advice to help ClimateTech Entrepreneurs like you be inspired by their successes and learn from their mistakes. cleantechies.substack.com

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The #1 Podcast for ClimateTech Entrepreneurs

Category

Technology

Podcast website

cleantechies.substack.com

Latest episode

Jul 3, 2026

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Episodes

#140 Big Oil Bogeyman, Watching Your Satellites Launch, Biz Model First, & More w/ Dan Katz (Orbital Sidekick) 12.12.2023

🌎 Welcome back to the CleanTechies PodLetter, founder edition. Today, we are talking to Dan Katz of Orbital Sidekick . In this episode, you will find: * How Dan and his co-founder, Tushar decided to build a satellite company to help stop climate change. * Learn how they started with a business model first, found PMF, built an MVP, went to market, and raised their funding. * Dan’s advice on talent...

#139 The Climate Tech Opportunity, Developmental Finance in Climate, & More w/ Jamil Wyne (Climate Tech Bootcamp, Riffle Ventures) 09.12.2023

🌎 Welcome back to the CleanTechies PodLetter, VC edition. Today, we are talking to Jamil Wyne of Climate Tech Bootcamp & Riffle Ventures . In this episode, you will find: * Why direct access to customers and revenue generation are crucial for success in the climate tech space * How Jamil shaped Climate Tech Bootcamp with individuals with deep subject matter expertise and a builder's mindset * A w...

#138 Reverse Vending Machines, Regulation & Demand, Demonstrating Traction, & More w/ Paweł Ciesielski (Maas Loop) 05.12.2023

🌎 Welcome back to the CleanTechies PodLetter, founder edition. Today, we are talking to Pawel Ciesielski of Maas Loop . In this episode, you will find: * How Pawel makes reverse vending machines to help reduce the cost of collecting recycling bottles * Understanding regulation’s correlation with future demand and why their technology is seeing solid adoption * The importance of traction and payin...

#137 The Rigatoni List, Bootstrapping, The Recommerce OG, Scaling a Logistics Heavy Business, & More w/ John Fazzolari (Revivn) 01.12.2023

🌎 Welcome back to the CleanTechies PodLetter, founder edition. Today we are talking about the Recommerce . Again, let us know if you want to see anything in particular in these longer-form write-ups as we are still iterating. Let’s get into it. What you’ll find in today’s PodLetter… * Diverting Hardware from Landfills to In-Need Organizations * Complex Logistics as a Moat * Bootstrapping 🥾 * The...

#136 Hardware as an AI Moat, Design for Finance with the Climate Capital Stack, & More w/ Shaun Abrahamson (Third Sphere VC) 28.11.2023

🌎 Welcome back to the CleanTechies PodLetter, VC edition. Today we are talking about the Climate Capital Stack . We are keen to get your thoughts on this new format so let us know if you want to see anything in particular in these longer-form write-ups. Let’s get into it. What you’ll find in today’s PodLetter… * “Design for Finance” & Climate Capital Stack * Bad Investing Signals and the Difficul...

#135 Saving Corporates 50% on Supply Chain, Getting Non-Profits Engaged, & More w/ Diz Petit (LiquiDonate) 22.11.2023

🌎 Welcome back to the CleanTechies PodLetter, founder edition. Today we are talking about recommerce . We are keen to get your thoughts on this new format so let us know if you want to see anything in particular in these longer-form write-ups. Let’s get into it. What you’ll find in today’s PodLetter… * Building an Impact-Focused AND Scalable Venture * Aligning Supply & Demand * Financial Incentiv...

#134 How Climatize is Democratizing Clean Energy Investing, Building an MVP in Highly Regulated Markets, & More w/ Will Wiseman (Climatize) 18.11.2023

🌎 Welcome to the CleanTechies PodLetter, founder edition… (did we just make a new category 🤯) As a recap, we are rolling out a new format for you with a written component to the podcast episode that is being shared. In addition, we have some carveouts at the bottom. What you’ll find in today’s PodLetter… * “Crowdfunding” Energy Development * A Financial Way to Protest * Community-Based Approach...

#132 The Role of Science in VC, Successfully Building in Hardware, and Calculating Decarbonization w/ Iris Ten Have (Extantia) 01.11.2023

Why you should listen: * Learn about what a Head of Science does in VC * Hear how this hardware-focused investor evaluates hardware investments * Find out what VC can learn from science Not already a subscriber…subscribe today and support us either financially or through sharing the post. In this episode, Somil Aggarwal (@somilagg) interviews Iris Ten Have about her journey into VC from a science...

#131 Selling to Utilities, The Disruptor Mistake, Clean Your Camp, Carrot vs Stick Regs, & More w/ Michael Jung (ICF Climate Center) 26.10.2023

Why you should listen: * Learn the tips of selling your tech to Utilities * How to consider equity and inclusion as you build * Hear Michael’s ideas of where to build in climate Not already a subscriber…subscribe today and support us either financially or through sharing the post. In this episode, Silas Mahner (@silasmahner) speaks with Mike Jung from the ICF Climate Center. Given Mike's work acro...

#130 Financing Emerging Clean Technologies, The Incentive of Repeat Transactions, Hiring a Founding Team, & More w/ Kevin Kyer (Pyrpose.io) 20.10.2023

Why you should listen: * Learn how to hire a founding team * Find out the secret to properly structured incentives to achieve repeat transactions when working in emerging markets * Learn how to communicate your offering to non-climate-nerds Not already a subscriber…subscribe today and support us either financially or through sharing the post. In this episode, Silas Mahner ( @silasmahner ) & Somil...

#129 A Decade of Energy Investing, Impact Investment Hurdles, & Launching a 2nd Fund w/ Jason Blumberg (Earth Foundry) 15.10.2023

Why you should listen: * How to succeed in building your company from a seasoned ClimateTech and energy investor * How to successfully expand your thesis and launch a new fund * Learn the best ClimateTech industries of the future Not already a subscriber…subscribe today and support us either financially or through sharing the post. In this episode, Silas Mahner ( @silasmahner ) & Somil Aggarwal (...

#128 Branding & Marketing Your ClimateTech Startup w/ Anna Konstantinova (AnnaKo.Co) 10.10.2023

Why you should listen: * To get a basic intro to marketing and branding as a climate tech founder/operator * Learn some tips on branding and recruitment/talent acquisition * Find out when you should bring on someone to help you with your brand Not already a subscriber…subscribe today and support us either financially or through sharing the post. In this episode, Silas Mahner ( @silasmahner ) & Som...

#127 Scalable Carbon Capture, Building as a Non-Deeptech Founder, Creative Business Models, & Navigating Funding Challenges w/ Luke Shors (Capture6) 08.10.2023

Why you should listen: * Learn about a new breakthrough carbon capture model * How you can build a deep tech company as a non-deep-tech founder * How to raise from both public and private funding sources Not already a subscriber…subscribe today and support us either financially or through sharing the post. Show Notes: In this episode, Silas Mähner (@silasmahner) and Somil Aggarwal (@somilagg) inte...

#126 The Value-add of Specialist VCs, Engaging with Corporate Partners, Advice to Founders & Aspiring VCs, Defending Your Moat, & More with Grant Allen (SE Ventures) 01.10.2023

Why you should listen: * Discover the role of Specialist VCs in climate change solutions with SE Ventures * Learn about SE Ventures and its innovative climate and industrial tech investments * Gain insights on collaboration with large companies and startup wisdom Not already a subscriber…subscribe today and support us either financially or through sharing the post. Show Notes: In this episode Sila...

#125 Revolutionizing Heating and Cooling with Smart Radiators, Facing Rejection, and Building Hardware like Software with Marshall Cox (Kelvin) 27.09.2023

Not already a subscriber…subscribe today and support us either financially or through sharing the post. Show Notes: In this episode, Somil Aggarwal (@somilagg) interviews Marshall Cox about his journey into being a climate tech founder, the impact of getting a Ph. D. on his journey, how he faced rejection, and how to build hardware like software. Overall, a super good episode packed full of insigh...

#124 Timing, Team, & TAM, Removing the Friction of ESG Reporting and Data Tracking, Utilizing Your Investor Network, & More w/ Tee Ganbold (OpenESG) 24.09.2023

Today we have a pretty exciting episode with an inspiring Entrepreneur, Tee Ganbold. She has an incredible perspective to offer given her Mongolian roots, global experience, and expertise in AI, ESG, and leadership. One of the biggest themes from today’s episode is timing. You need to have the right timing to make things work. Consider the work you’re doing and if the timing is right. If you take...

#123 - Driving Adoption in Hard-to-Abate Sectors, Why Not an IP Play, Fundraising for an R&D Shop, Partnering w/ Large Corporates, Hiring PhDs, & More w/ Jeff Erhardt (Mattiq) 17.09.2023

You’ve heard of raising a VC Fund, you’ve heard of raising money for your startup, but have you heard of raising money to pay scientists and chemical engineers to play around in a lab…oh and it’s not for philanthropy. Today we have a pretty fascinating episode with Jeff Ernhardt from Mattiq discussing how they are identifying new materials science formulas, proving them on the bench, and then part...

#122 - Offset Skepticism, Regulation Driving Demand, Sustainable Supply Chains, Content GTM Strategy, Climate Business Opportunities, & More w/ Saif Hameed (Altruistiq) 14.09.2023

Welcome back to another episode of the CleanTechies Podcast! 🌎 So good to see you again. 🤝 There are a few people who should benefit from this episode. 1 : People curious to learn about the ESG SaaS market. He offers a bit of history on the origin of these companies and the current landscape, as well as where they are likely to go (hint, it’s more specific and niche). This is covered mostly betw...

#121 - Size Matters...Fund Size, Re-industrializing the World, Hardware is NOT Hard, & More w/ Matt McGraw (Anthro Ventures) 08.09.2023

Before we get into the show, we have an ask! You may or may not be familiar with what goes into creating a podcast and doing all this, so we figured we’d tell you. Making each of these episodes, takes about 3 - 5 hours of work from setting up the interview, to prep, recording, and then post-production and promotion. Why are we educating you on podcasting? Well, we want your support. If you enjoy t...

#120 - Serial Entrepreneur Fundraising, the IRA & Home Electrification, IRA-Dependent Business Models, & More w/ Jeff Chapin (Haven Energy) 06.09.2023

Show Notes: In this episode, Silas Mahner ( @silasmahner ) & Somil Aggarwal ( @somil_agg ) speak with Jeff Chapin, the Co-Founder of Haven Energy. We heard how he raised the funding for Haven with 2 pitches. He taught us how the IRA aids home electrification. His thoughts on building IRA-dependent businesses. We finish up with his advice to founders. Enjoy the Episode! 🌎 📆 Book a time with Silas...

#119 - Partnering w/ Energy Majors in the Climate Revolution, Houston's Role in the Movement, Discovery Framework, & More w/ Eric Rubenstein (New Climate Ventures) 29.08.2023

CleanTechies is a reader-supported publication. To receive new posts and support our work, consider becoming a free or paid subscriber. CoHost. AI Writeup Ever wondered what the intersection of climate change and venture capital looks like? In our latest podcast episode, we have a riveting conversation with Eric Rubenstein, founding managing partner at New Climate Ventures. Eric opens up about his...

#118 - Carbon Negative Cement, DeepTech Development Frameworks, Hiring a Founding Team, Pointers on an IP Business, & More w/ Cody Finke (Brimstone) 22.08.2023

(CoHost. AI Writeup) Ever wonder how a chemist turned into a green entrepreneur tackling the enormous environmental issue of cement production? Our latest episode of the CleanTechies podcast brings you the fascinating journey of Cody Finke, the brain behind Brimstone, a unique venture that's transforming cement production with a carbon-neutral or even carbon-negative approach. From his days in gra...

#117 - Early Stage Hiring Decisions, Heeding the Lessons from CleanTech 1.0, Energize's $300m Growth Fund Close, & More w/ Eileen Waris (Energize Capital) 15.08.2023

CleanTechies is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber. (CoHost. AI write-up) Ever wondered how a high school Spanish teacher can ignite a passion for sustainability that leads to a thriving career in venture capitalism? Our guest, Eileen Weiris from Energize Capital, shares this intriguing narrative and much more. We c...

#116 - Consultative VC, Understanding Customers (as a VC), Developing Industry Networks for Your PortCos, & More w/ Rick Zullo (Equal Ventures) 08.08.2023

This is a free preview of a paid episode. To hear more, visit cleantechies.substack.com (CoHost. AI Summary) Imagine having a front-row seat to the evolution of climate tech, from the early 2000s to now. That's the fascinating journey we take with Rick Zulo, co-founder and GP at Equal Ventures, on our latest podcast episode. Rick candidly unravels his intriguing journey from earning a dual degree...

#115 - How Logical Buildings Built the First Residential & C&I Energy Management Service w/ CEO, Jeff Hendler 02.08.2023

CoHostAI Summary: Imagine harnessing the power of real-time data to create more energy-efficient buildings. That's precisely the intriguing journey our guest, Jeff Hendler, co-founder and CEO of Logical Buildings, takes us on in this episode. Leaving Wall Street behind for the utility sector, Jeff then ventured into creating his smart building company, successfully adding value through engineering...

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