UnderMine

Adam Ortolf, a Colorado native, serves as a Founding Partner at Stranded Energy Investments, focusing on harnessing stranded and wasted natural gas for bitcoin mining. Additionally, he holds the role of U.S./International Business Development Manager at Upstream Data Inc., where he designs projects and supplies engines and infrastructure to help oil and gas producers monetize their stranded or waste natural gas through bitcoin mining.

Toine is the founder of 256 Heat, a company dedicated to air-based Bitcoin heating systems. With a background in 3D design, macroeconomics, and finance, he first discovered Bitcoin in 2013, invested in 2015, and later became deeply involved in mining. Recognizing the potential of proof-of-work and digital scarcity, Toine began mining in 2022 and focused on modifying mining hardware to capture and utilize its waste heat. In 2022, he designed and built a dedicated Bitcoin mining shed, allowing him to experiment with firmware, software, and hardware optimizations. This hands-on experience led to the creation of 256 Heat in 2024, where he now develops practical, pleb-focused heat reuse solutions that integrate Bitcoin mining into everyday heating applications.

Bitcoin Mechanic is a sovereign Bitcoin educator, miner, and advocate, deeply involved in self-custody, home mining, and decentralized finance. As a key contributor to Ocean, focused on miner sovereignty, he works to empower miners with greater control over their hashrate and transaction selection. Passionate about sovereignty and censorship resistance, he actively educates individuals on running their own nodes, securing their Bitcoin, and optimizing mining operations without reliance on third parties. Through his work, he continues to push for a more decentralized and resilient Bitcoin network.

Bob Burnett is the founder and CEO of Barefoot Mining, a company dedicated to developing “horse-class” Bitcoin mining sites and expanding diversity in mining geography, scale, and energy sources. With over 35 years in technology, Bob previously spent 13 years at Gateway, Inc., a Fortune 200 personal computer company, where he led product development as Chief Technical Officer. His deep expertise in hardware engineering, infrastructure, and energy integration has led him to found multiple Bitcoin mining ventures, advocating for decentralized, sustainable, and scalable mining solutions. As a passionate Bitcoin evangelist and educator, Bob is committed to advancing Bitcoin’s role in monetary freedom and energy innovation.

Bob is an engineer and content creator, best known for his Home Bitcoin Immersion Mining YouTube channel, one of the most comprehensive resources for integrating immersion cooling and Bitcoin heat reuse into residential and commercial applications. His work explores practical, cost-effective ways to harness Bitcoin mining waste heat for real-world heating solutions. Bob has pioneered a fully analog control system, using standard hydronics and electrical switch gear, eliminating the need for complex software-based controls. His hands-on approach and deep technical expertise make him a go-to resource for Bitcoin miners looking to optimize their heating systems while decentralizing hash power.

Brett Rowan is a software engineer at Upstream Data, a company specializing in Bitcoin mining solutions for stranded and excess energy. He is the creator of PyASIC, an open-source Python library that serves as the data collection and communication layer for Bitcoin miners across different manufacturers, models, and firmware types. His deep technical expertise in the software layer of Bitcoin mining has been instrumental in advancing Bitcoin heat reuse, enabling greater control, efficiency, and interoperability for miners repurposing waste heat.

Cade's background is centered around aircraft maintenance and systems engineering. He served for 21 years on active duty and retired from the US Air Force. He earned an Airframe & Powerplant certificate, BS and MS in Aeronautics, and then a Master of Business from the University of Southern California before starting Softwarm LLC in the mountains of Central Idaho. Softwarm serves and advises a hashrate heated concrete batch plant, car wash, industrial shops, homeowners, and a hydroelectric facility powered directly by the runoff from Idaho's highest mountain, Mt. Borah

Christopher Crowell is the Senior Director of Business Development and Sales at Canaan Inc., the leading NASDAQ-listed Bitcoin ASIC miner manufacturer. He focuses on expanding Canaan's presence in North America, launching Avalon miners like the A13, A14, and A15, while promoting sustainable Bitcoin mining solutions. A long-time Bitcoin advocate since Satoshi Nakamoto’s white paper, Christopher combines his finance, legal, and Mandarin Chinese expertise to drive growth and innovation in the mining industry. Christopher Crowell is also a third generation Floridian, dedicated father, and a collector of rare coins.

Cody Harris is a freedom maximalist living in Wyoming. Cody and his wife Beth run Citadel Construction, a small construction company specializing in creative remodels and heating homes with bitcoin miners. When he's not busy swinging a hammer or trying to convince fellow freedom lovers to move to Wyoming, Cody can be found rock climbing or trailrunning.

Colin Crossman is the founder of Distributed Hash, a Bitcoin mining hosting facility in Wyoming, and a founding member of The Space, Denver’s Bitcoin hub. He is the Director of the Business Division for the Wyoming Secretary of State, with a background in law, finance, and data analysis. A Duke University Law School graduate, he has expertise in genomics, bioinformatics, and intellectual property law. With experience in capital raising and business development, Colin is a strong advocate for decentralization and sustainable Bitcoin mining infrastructure.

Colin Sullivan is a Bitcoin OG hailing from the class of 2016. He’s the CEO and Co-Founder of MintGreen, a pioneering company specializing in commercial and industrial grade thermal products that harness the entropy of Bitcoin compute. A self-described, recovering MBA that’s bringing the heat from the frigid 51st state.

Dane S. is dedicated to making home Bitcoin mining both practical and profitable while maintaining a strong focus on usability. With a commitment to Bitcoin’s decentralization, he is working to distribute hash power globally by integrating mining systems into everyday applications. Through the use of immersion cooling, he maximizes efficiency and heat recovery, repurposing excess heat for domestic hot water, radiant floor heating, jacuzzis, and pools. By leveraging this innovative approach, Dane aims to revolutionize home mining and bring Bitcoin back to its decentralized roots.

David Urlacher is a firmware developer at Luxor, a leading Bitcoin mining company specializing in mining pool services, aftermarket firmware, and data-driven optimization tools for industrial and home miners. He plays a key role in developing LuxOS, firmware designed to enhance efficiency, thermal performance, and power optimization for a variety of Bitcoin mining hardware. David is also the instigator of the “Urlacher Kit”, a retrofit for Bitmain S19 and S21 series miners that allows them to operate efficiently on 110V residential outlets, making home mining more accessible by reducing power constraints, noise, and heat output.

Dwight is a thermal engineer specializing in electronics cooling solutions for ultra-high power densities. He is a class of 2020 Bitcoiner who joined the team at Unbound Networks in an effort to help scale mining-for-heat to the residential market.

Dylan is a certified structural engineer and Bitcoin maximalist who actively integrates hashrate heating into his own home. As the acting CFO of The Space, Denver’s Bitcoin hub, he combines his financial and engineering expertise to support grassroots Bitcoin initiatives.

With deep experience in contractor and trades industries, Dylan has worked extensively on design processes and engineering drawings for new builds, giving him a strong understanding of the challenges and opportunities in integrating Bitcoin mining heat reuse into modern infrastructure.

Kevin is a Bitcoin miner and educator with a background in real estate valuation, based in Tampa, Florida. His Bitcoin journey began in 2017, leading him to experiment with node hardware, software, and eventually mining. Starting with a single home miner, he expanded his operation by building a dedicated mining outbuilding and gaining hands-on experience at mining sites across the U.S. Kevin has contributed educational content to Bitcoin Magazine and Ungovernable Misfits, created technical documentation for mining platforms, and actively moderates home mining Telegram channels. Now at Altair Technology, he continues to help Bitcoin miners optimize operations and harness excess energy for mining.

Lu Zexiang is the COO and Global After-Sales Supervisor at HeatCore, a company focused on integrating Bitcoin mining with innovative heat reuse solutions. HeatCore specializes in designing and manufacturing energy-efficient mining hardware that repurposes waste heat for residential and industrial applications, making Bitcoin mining more sustainable and accessible.

Martin Connor is the Head of Research at Braiins. He authored Bitcoin: The Ultimate Collateral and The Bitcoin Mining Glossary, and he was an editor on Bitcoin Mining Heat Reuse.

Matt Hill is the Founder and CEO of Start9 Labs, a company pioneering sovereign computing by enabling individuals to easily self-host their own infrastructure. With a background in distributed systems and privacy-first technology, Matt is dedicated to building tools that empower users with full control over their digital lives, free from centralized intermediaries. Under his leadership, Start9 has developed StartOS, an intuitive, open-source operating system for running personal servers, helping Bitcoiners and privacy advocates reclaim their data, communications, and financial sovereignty.

Mike Tsoflias specializes in commercial HVAC and building automation at Long Building Technologies, one of the largest mechanical equipment and controls providers in the Western U.S. With experience in air distribution, hydronic heating, and advanced control systems, he works closely with mechanical contractors, developers, and consulting engineers to integrate high-performance heating solutions into commercial and industrial projects.

Home Bitcoin miner that turned his passion into a career in consulting and education.

Helping pioneer ASIC waste heat utilization through cooling technologies.

Nicolas Drouin is the founder of Constellation Heating, a startup with the mission of making Bitcoin mining more accessible to individuals and industrials by focusing on automation, heat reuse and grid integration.

Rachel Nixon is a Bitcoiner and a driving force behind IMA Insurance’s initiative to serve the Bitcoin mining industry. She played a key role in developing insurance solutions tailored to mining operations, covering infrastructure, equipment, and risk management.

With a deep understanding of large-scale equipment insurance, Rachel helps miners navigate the complexities of protecting their assets in an evolving regulatory and financial landscape.

Robert Warren is a researcher, educator, and author of the Bitcoin Miner’s Almanac. He has published broadly on Bitcoin, particularly within Bitcoin mining, having started writing early guides on home mining deployments and heat use. His professional work has included, sales operations at Upstream Data, co-founding the privacy oriented hosting company Distributed Hash, running projects and operational analysis at megaminer Riot Platforms, and now leading research and educational initiatives at Bitcoin Park.

Ryan Ramminger is a Bitcoin mining entrepreneur and hardware innovator dedicated to advancing next-generation cooling solutions for ASIC miners. With a strong background in thermal engineering and hardware development, Ryan is pioneering direct-to-chip liquid cooling technology, pushing the boundaries of efficiency and heat reuse in Bitcoin mining. He actively shares insights on ASIC optimization, thermal management, and mining infrastructure, working to make Bitcoin mining more sustainable and scalable.

Michael Schmidt (Schnitzel) is the creator of the HashTub, a Bitcoin-heated hot tub, and the founder of Nakamoto Heating Solutions. With a background in software engineering and deep expertise in Bitcoin mining, he developed HASS Miner—a software integration that enables seamless remote control of ASIC miners through Home Assistant, the leading smart home IoT automation platform.

Trevor Bello is the host of the Build-a-Mine podcast and the Stackin Sats podcast, where he dives into the world of Bitcoin Mining. A dedicated Bitcoin maximalist, Trevor is deeply passionate about the intersection of Bitcoin and sustainable energy, particularly through hashrate heating. He gained his HeatPunk status after successfully building several small-scale heating systems, he is now focused on developing more integrated solutions, using immersion and hydro cooled infrastructure.

Troy Cross is a philosopher, Bitcoin researcher, and advisor specializing in energy and mining sustainability. He is a Fellow at the Bitcoin Policy Institute and actively contributes to discussions on Bitcoin’s role in energy markets. As an advisor to Anadro, Troy supports their innovative approach to integrating Bitcoin mining with solar energy infrastructure in California, helping to balance grid demand and improve renewable energy economics. His work focuses on the intersection of Bitcoin, energy, and policy, advocating for mining solutions that enhance decentralization and sustainability.

Former rocket scientist turned bitcoiner - Tyler has a background in thermal engineering and heat transfer. He is the author of the Bitcoin Mining Heat Reuse book, and founder of Exergy LLC, an engineering consulting firm that designs hashrate powered heating systems. Tyler is also a co-founder and board member of The Space - Denver's bitcoin citadel.

Zubair Ahmad is a cross-functional product manager with 20+ years of experience across silicon, systems, software, and product management. He’s worked on mobile, compute, and automotive system design, as well as product marketing—now bringing that expertise to bitcoin mining. Previously at AMD and Qualcomm, Zubair is known for his sharp product instincts and ability to drive innovation. He holds a bachelor’s in electrical engineering from the University of New Orleans and an MBA from the University of Illinois Urbana-Champaign.