Our team

Meet the full Demex team—and a few of
our friends.

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Mike Anderson

Head of Growth

Mike is a mathematician and self-proclaimed “data geek” who built the growth engine for several early-stage companies before joining Demex. He is a graduate of West Point and the University of Virginia’s Darden Graduate School of Business who anchors the team at our DC Headquarters focused on delivering climate resiliency solutions to future cohorts of Demex customers and partners.

Stephen Bennett

Chief Climate Officer

Steve is a weatherman-turned-entrepreneur whose 25-year career includes working for The Weather Channel and the Scripps Institution of Oceanography, as well as founding EarthRisk Technologies. Steve’s mission is to bridge the gap between climate volatility and business operations.  Steve is a human companion for Demex’s Dog Pound in Raleigh.

Ed Byrns


Ed is the founder and mastermind of The Demex Group. He has spent more than 20 years working in commodity and weather markets and holds a PhD in Engineering and a MS in Economics. Before Demex, Ed served for seven years as Chief Technology and Innovation Officer of Munich Re Trading. Ed’s assistant, Mr. Darcy, vigilantly protects him from the wild animals that roam the Maryland countryside.

Arielle Catalano

Head of Business Enablement

With over 15 years of climate research experience under her belt, Arielle specializes in data analysis and interpretation, which she uses to fuel her passion for communicating climate and weather risks.  Her steadfast companion, Rafiki, patrols the perimeter of team video calls originating in northern New Jersey.

Hui Chen

Software Engineer

With over seven years as a software engineer, Hui designs and develops the underpinnings of the Demex Solutions Center. His feline companion, Mocha, is known for glamour shots that adorn the walls of the Demex office.


Bill Clark

President & CEO

Bill is a proven technology operating executive with more than 25 years of CEO/CMO/Board experience in identifying unique market opportunities and building industry-leading companies to capture them.  As a passionate and results-driven leader, Bill has led game-changing initiatives that have enabled public, VC and PE-backed companies in Silicon Valley and the East Coast to achieve breakout success. Bill has extensive experience in analytics and financial services, combined with a passion for climate science. When he’s not in the office, Bill can be found acing his competition on the tennis court.

Matt Coleman

Chief Risk Officer

Matt joined Demex with 20 years of experience in climate risk insurance, most recently at Nephila Climate, where he served as Director. He’s an expert in the origination, structuring, pricing, and portfolio management of climate risk. When he’s not busy at his Demex screen, you can find him watching MTV’s The Challenge.

Charlie Eadie

SVP for Growth

Charlie brings two decades of leadership experience from the public and private sectors.  He is a team builder and business developer who graduated from West Point and completed graduate studies at London School of Economics and King’s College London where he was a Marshall Scholar.  Charlie builds meaningful partnerships to deliver climate resilience at scale.


Ruth Foxe-Blader

Demex Board

Ruth is a Partner at Anthemis, a leading global venture capital firm focused on cultivating change in financial services by investing in, growing, and sustaining businesses committed to improving the world.

Larry Gloeckler

Principal Data Engineer

Larry joined Demex with a PhD in Climate Science and over five years experience building applications that link climate to corporate supply chains. He operates at the tip of the Demex weather-dataverse for risk pricing, structuring and transacting. Since he’s a former UAlbany Great Dane, Mocha and Tokyo tend to avoid his meetings.

Hank Hattemer

Demex Board

Hank is General Counsel and COO at Blue Bear Capital. With a background in InsurTech, finance, and law, Hank focuses on bridging the gap between Tech VC and companies that are focused on climate resilience.

Dominic Hernandez

Climate Resilience Associate

Dominic’s mastery of Weather Intelligence and Risk Management stems from his graduate studies at Millersville University. He’s the resident Demex Genius focused on analyzing and communicating climate resilience solutions across Demex markets.  Dom’s assistant, Roki, keeps the Raleigh office longing for a midmorning nap.

Andrew Janke

Director, Quantitative Systems

Andrew brings his extensive and specialized experience in FinTech to Demex. He develops quantitative analytic platforms that integrate multiple technologies and programming languages.  Andrew is personal assistant for two cantankerous felines that exhibit a New York State of mind.

Dare Johnson

Sr. Executive Administrator

Dare brings over 20 years of experience being the Gatekeeper for attorneys, engineers, a councilman, and a U.S. Army Colonel. She is a proud HBCU graduate and former cheerleader from Morgan State who holds a bachelor’s degree in Business Administration.  She is an avid traveler based in DC, where she resides with her husband, daughter, and their adopted Puggle Cupcake who has more Instagram followers than most of her family.

Jenny Kafka

Senior Director, Analytics

Jenny draws on more than 6 years of experience in atmospheric science to drive the links between weather, climate, and risk pricing. When she’s not at her keyboard you’ll find her scaling the Rocky Mountains.  Tokyo and Fluff are her feline assistants, one of whom contributes key substance for many team meetings and the other of whom is just angry, all-the-time.

Ken Konecki

Chief Engineer

Ken is a technologist who draws on 30 years of experience in finance to lead our team of software engineers. He architects the Demex Solutions Center and builds innovative products at scale. Previously, he spent several decades in FinTech working at Citadel Investment Group.  His canine officemate, Dutch, is pretty darned limber.

Nick Linhares

Director, Business Ops

Nick joins Demex with solid experience in compliance and regulatory affairs. He leads Demex compliance, corporate risk, legal, as well as our relationship with regulatory bodies at the state and federal levels. Nick is part of DC HQ as a transplant from Chicago. He and Ken are fellow Demons and alumni of the Blue Crew.

Bruce Macdonald

Demex Advisor

Bruce’s career has spanned decades in financial services, with expertise in capital markets and commodities. He spent 38 years at Royal Bank of Canada, most recently as the head of the Commodities and Discretionary Capital Group for RBC Capital Markets. Bruce is currently Chairman of the Canadian Depository for Securities Limited (CDS) and has been a member of the Board since 2006.  Bruce comes to Demex as an advisor on commodities, risk, and technology.


Madeline McFarland

Communications Associate

Maddy is part of the “connective tissue” of Demex. She spends her time deep in the matrix of internal data analysis and communication systems. She has prior experience in economic consulting and holds bachelor’s degrees in economics and history from Williams College. Maddy is also a graduate student at New York University where she is honing her writing skills.

Stuart Mercer

Demex Advisor

Stuart is the CEO and Founder of Ventus Risk. He contributes decades of industry experience as an advisor to Demex with a unique career that spans both the re/insurance and capital market arenas. Stuart was a cofounder of Validus Re and the CEO of AlphaCat ILS Fund.

Carlos A. Oliveras

Head of Insurance

Carlos brings over 25-years of global leadership experience from within the insurance, brokerage, and reinsurance marketplace. He drives our growth and strategy in property & casualty insurance, reinsurance, brokerage, and alternative market structures including captive insurance.

Matt Perlman

Demex Board Advisor

Matt is a partner at IA Capital Group dedicated to working with innovative entrepreneurs in venture and growth capital investments in the insurance technology and financial technology spaces.

Kieran Scannell

Software Engineer

Kieran is a physicist turned software engineer who appreciates the Demex critical thresholds for cold weather. Hailing from upstate Minnesota, heis building the Demex Solutions Center with the team at Demex World Trade Center.

Taylor Sipple

Head of Product

After seven years at Bridgewater Associates, Taylor joined Demex to lead product initiatives across sales, analytics, and technology. He doesn’t forecast the weather, but he certainly takes advantage of it as an avid skier and surfer. Taylor is also the human-assistant for his buddy Archie who might be an Ewok pretending to be a canine.

Daniel Wypler

Demex Board Advisor

Daniel is Managing Partner at QBE Ventures. He is based in New York and focused on investing in early-stage insurance and financial technology. As an avid snowboarder and mountain biker, Daniel likes to moonlight as a meteorologist on the weekends. Alongside Jenny and Arielle, he is also a Scarlet Knight.


Dan Yokoyama

SVP for Growth

Dan sits at the convergence of business development, insurance, and data analytics.  His background in commercial insurance and business analytics drives Demex to meet the market’s needs for weather parametric-based risk transfer.  It’s not uncommon to spot a snout pop up from the bottom of the screen when on a video call with Dan.  That snout belongs to Winston, Dan’s friendly standard poodle, and can be taken as a sign of good luck.

Clarence Yuan

Product Operations

Most of Clarence’s career has been spent growing start-ups, with experience in sales, marketing, and operations. He currently manages the intersection of the Product and Growth teams in order to enhance inter-departmental efficiency and streamline client product delivery. He’ll bore you with endless photos of his Harley-Davidson as if it were his dog, Beef (‘N Cheddar), who keeps his feet warm.