Decades of excellence.
One unified team.
Leadership team
Christopher Ianelli
Founder & Co-CEO
Chris is co-CEO of Joined Bio, where he's helping to build the future of patient access. Previously, he founded iSpecimen, transforming how researchers access biospecimens and driving innovation in precision medicine. As a former Managing Director at Leerink Partners, he launched several successful healthcare ventures, including Humedica, which was acquired by UnitedHealth Group.
He holds an MD/PhD in Immunology from Tufts and completed his residency as Chief Resident at Brigham & Women's Hospital and Harvard Medical School. Despite his impressive credentials, he'd rather talk about old crooner music and cooking, including how to make 20 quiches at once in a home kitchen.
Jill Mullan
Founder & Co-CEO
Jill is co-CEO of Joined Bio, bringing her engineering mindset and business acumen to revolutionize patient marketplaces. Previously, as co-founder and COO of iSpecimen, she orchestrated everything from supply partnerships to biospecimen operations to marketing to corporate strategy, while keeping a watchful eye on privacy and security (no small feat in healthcare!).
Her 25+ year journey also includes launching groundbreaking products at Avid Technology, where she has responsibility for a cool $400M product line, and running product marketing and communications as a founding team member of Storigen Systems. She holds a BS in Electrical Engineering from Cornell and an MBA from Stanford. Outside of work, she's most passionate about health and baking, and can make all sorts of whole grain foods that actually taste good.
Bill O’Donnell
Chief Technology Officer
Bill O'Donnell is Joined Bio’s CTO, but he is a also a multi-talented individual with a passion for music, particularly guitar playing and piano.
Aside from his musical talents, Bill has held key technical leadership roles in esteemed organizations like KAYAK, Lola, Blade LLC, Intuit, Inc., Boston Light Software, Digital Direct Network, NetCentric USA, Interleaf, Inc., Marposs Techno, and Digital Equipment Corp.
He is a dedicated athlete who has completed 46 half marathons since 2013 and achieved impressive personal records in various race categories.
Educationally, Bill holds a BS in Computer Engineering from Carnegie Mellon University.
Bill Arteca
Head of Growth & Operations
Bill Arteca is the Head of Growth and Operations at Joined Bio. With a deep understanding of both scientific research and commercialization, he has a proven track record of scaling biotech companies by bridging the gap between lab-driven innovation and market success.
Prior to Joined Bio, he spearheaded the commercial expansion of industry leaders such as Ohaus, Sanguine, & Avrok Bio. His leadership accelerated revenue and market impact, including Avrok Bio’s ascent from startup to over $100,000 in monthly revenue and Sanguine’s valuation soaring. In 2024, Bill founded BioSample Connect, a platform for human biospecimen procurement (now part of Joined Bio). Within just six months, BioSample Connect achieved over $500,000 in bookings, positioning the company as a rising force in the industry.
Bill holds an M.S. in Biotechnology from Kean University. He is an avid history buff, having seen more WWII documentaries than he wants to admit.