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Brookline Capital Markets
Brookline Capital Markets is a healthcare-focused investment bank co-founded in 2013 by former Lazard CEO William B. Buchanan Jr.
Brookline Capital Markets
Brookline Capital Markets was co-founded in 2013 by William B. Buchanan Jr., Scott A. Katzmann, and Harris R.L. Lydon Jr., three former Wall Street bankers. Buchanan previously ran Lazard Capital Markets; Katzmann and Lydon held senior roles at Paramount BioCapital. The firm has no disclosed wealth origin and operates as an independent investment bank, not a single-family office. The firm focuses exclusively on the healthcare sector, covering life sciences, medical technology, and diagnostics across both public and private markets. Brookline underwrites IPOs, follow-on offerings, and PIPEs, and also structures private placements via convertible notes and preferred stock. The firm claims to have completed over 300 transactions since inception, raising over $35 billion in aggregate value. Distinctively, Brookline sources capital from traditional institutions and from a proprietary network of family offices and high-net-worth individuals. Portfolio companies include Perimeter Medical Imaging AI, which closed a CAD 6.8 million PIPE in May 2026, and ZeroToOne.AI, which acquired GroundTruth in March 2026. The firm's geographic footprint is North America, with offices in New York and Iselin, New Jersey. Brookline's platform includes equity research led by Director of Research Kemp Dolliver, a four-time Wall Street Journal "Best on the Street" awardee. The team also includes analysts Kumar Raja and Leah Cann, both senior healthcare research professionals. Brookline operates through FINRA-member affiliates including Arcadia Securities, B. Dyson Capital Advisors, Tiberius Capital Markets, and Hermes Capital Advisors. In May 2026, the firm acted as co-placement agent on a CAD 6.8 million PIPE for Perimeter Medical Imaging AI. Brookline's structural differentiator is its hybrid model: an investment bank that also curates a dedicated investor network of family offices and HNWIs for its healthcare clients. The firm asserts that repeat clients account for over 70% of its business, reflecting a relationship-driven model rather than transactional episodic banking.
General information
Firm type
Asset Manager
Year founded
2013
AUM
Undisclosed
Location
Region
North America
Country
United States
City
New York
Corporate office
New York, NY, United States
Additional offices
Iselin, NJ, United States
Principals
William B. Buchanan, Jr.
Chief Executive Officer
Scott A. Katzmann
Co-Founder
Harris R.L. Lydon Jr.
Co-Founder
Graham A. Powis
Managing Partner
Michael Fontaine
Managing Partner
Patrick A. Sturgeon
Managing Partner
Samuel P. Wertheimer, Ph.D.
Managing Partner & Senior Scientific Advisor
Kemp Dolliver, CFA
Director of Research
Sector focus
Frequently asked questions
Who runs investment decisions at Brookline Capital Markets?
William B. Buchanan Jr. serves as CEO. The firm operates with a partnership structure; Graham A. Powis, Michael Fontaine, Patrick A. Sturgeon, and Samuel P. Wertheimer are Managing Partners involved in capital markets and advisory (per firm website).
How does Brookline source its proprietary deal flow?
Brookline maintains a proprietary network of family offices and high-net-worth investors built over a decade of healthcare banking. The firm also collaborates with leading research institutions including Columbia, Harvard, Johns Hopkins, and Stanford (per firm website).
Is Brookline structured as a family office or an investment bank?
Brookline is an independent investment bank, not a family office. However, it differentiates itself by operating a dedicated investor network of family offices and HNWIs, which acts as a capital source for its healthcare clients (per firm website).
Does Brookline participate in fund commitments or only direct deals?
Brookline acts as an underwriter, placement agent, and advisor, not as an LP. It raises capital for healthcare companies through IPOs, PIPEs, private placements, and convertible offerings. It does not manage a permanent capital pool or commit fund capital (per firm website).
What investment stages does Brookline typically target?
Brookline covers both public and private stages — from pre-IPO private placements to public offerings including IPOs, follow-ons, and PIPEs. It also works with SPACs and emerging growth enterprises in healthcare (per firm website).
What is Brookline's relationship with Arcadia Securities and other affiliates?
Arcadia Securities is a FINRA member through which Brookline executes trades. Affiliates also include B. Dyson Capital Advisors, Tiberius Capital Markets, and Hermes Capital Advisors. These entities provide distribution and advisory infrastructure for Brookline's deals (per firm website).
Does Brookline maintain any philanthropic structures?
The firm does not disclose any philanthropic foundations or charitable vehicles. Senior research analyst Leah Cann founded the Hope Funds for Cancer Research, a separate charity (per firm website).
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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