40°45'18.0"N 73°58'18.4"W
New York
LSH Partners
Independent Investment Bank
LSH Partners is an independent NYC-based boutique merchant bank providing corporate finance and private capital advisory services to clients in the financial services and other selected industries.
The Firm
Cross-Border Focus
Loeb Spencer House Partners (“LSHP”) was formed over a decade ago as a strategic alliance between LSH Partners and Spencer House Partners. Together we advise financial institutions, aiming to provide clients with top-tier senior guidance, devoid of conflicts, while maintaining the utmost discretion and integrity.
40°45'18.0"N 73°58'18.4"W
LSH Partners
51°30'20.2"N 0°08'25.4"W
Spencer House Partners
Visit Spencer House Partners' websiteSector Focus
Our senior bankers have spent decades advising a broad range of clients including financial institutions and their key stakeholders on numerous types of transactions.
Our Services
We aim to be our clients’ trusted advisor, building long-term relationships that extend well beyond any single transaction. We measure success in years, not quarters.
Selected Transactions
Asset Management

On its merger with

Wealth Management

On its sale to

Asset Management
Fundraise for

Wealth Management

On its combination with
Asset Management

On its sale to

Wealth Management

On its minority sale to

* Transactions completed by LSH professionals during their employment at a prior firm
SH Deals completed by Spencer House Partners
Principal Investing
The Loeb/Kempner family has an investing history dating back more than a century, starting with Carl M. Loeb leading a management buyout of American Metal Company from the United States Government in 1919. LSH Partners’ professionals are always on the lookout for unique opportunities to make proprietary investments in situations where our skills, experience and expertise can add value to a business. Our investments are funded from the capital of our professionals, the Kempner/Loeb family, and other closely connected co-investors. Our clients’ success and ours is frequently measured in years, not quarters.
Over the years, Spencer House Partners and its partners have participated in direct private equity investments; typically we have preferred minority positions and opportunities where we can support an existing management team, often the founders of the business, providing assistance with a new stage of the company’s development.
Select LSH Partners Investments*








Select Spencer House Partners Investments*




*This is not an offer to purchase or sell securities. The FluidStack, Ltd investment is through a third-party special purpose vehicle. The companies described in the Select LSH Partners Investments are past and current private, direct investments of LSH Partners, its professionals, and closely connected co-investors. LSH Partners does not purchase, sell or recommend securities to clients. The companies identified in the Select LSH Partners Investments and Select Spencer House Partners Investments are described herein in order to demonstrate the types of companies and industries that LSH Partners, Spencer House Partners, and their professionals seek to invest in.
People
Mr. Kempner is President of LSH Partners and a Partner of Loeb Spencer House Partners. Prior to LSH Partners, Mr. Kempner was President of Loeb Partners Corporation from 2014 to 2016.
Mr. Kempner began his career at Lazard, in 1983 and was named a General Partner in 1993. Mr. Kempner was involved in banking and capital markets transactions and managed Lazard’s Corporate Finance department from 1995-1998 and founded Lazard’s Logistics and Transportation group in 2000. His most recent role was as Senior Advisor in Lazard’s general industrials banking group, with emphasis on companies in the Transportation and Logistics industries. Mr. Kempner also served on the Underwriting and Private Placement Committees of Lazard. While at Lazard, Mr. Kempner advised Cardinal Logistics on its sale to Centerbridge, General Maritime on its restructuring, Box Ships on its Initial Public Offering, Atlantic Street Capital on its sale of Fleetgistics, the Special Committee of Overseas America on its sale to OSG, ITS Technologies & Logistics on its sale to The Carlyle Group, New Breed on its sale to Warburg, Pincus, Navios Maritime on its sale to International Shipping Enterprises, SuperValu on its acquisition and sale of Total Logistics, and advised UTI on its Initial Public Offering.
Outside of the Logistics and Transportation Industry, Mr. Kempner advised Intersections Inc. (NASDAQ=INTX) on its Initial Public Offering, MasterCraft on its sale to TRP and Charlesbank, and FuelCell Energy (NASDAQ=FCEL) on its acquisition of Global Thermoelectric. While at LSH, Mr. Kempner has advised Pharmachem Laboratories on its sale to Ashland, VSS SC III and IV on its capital raise, Harmless Harvest on its capital raise, NorStar Shipping on its capital raise, IDOC on its sale to The Riverside Company, Liberty Woods International on its sale to CoorsTek, Intersections Inc. on its private placement of a term loan to Crystal Financial, Infraredx Inc. on its sale to Nipro Corporation, Edgewood Management LLC on its internal equity plan and valuation, Elion Partners on its private equity fundraise, FallLine Group on its private equity fundraise, Torrey Cove on its sale to Aksia, Parallel on the refinance of its Seller Note, Haven Capital Partners I on its capital raise, Fresca Mexican Foods on its sale to C.H. Guenther & Son, Crockett Partners Equipment Company on its capital raise, Tarpon Blue on its capital raise and acquisition of Collier Enterprises, and Hunter Point Capital Investors on its capital raise.
He is an Advisory Board Member and on the Finance Committee of Mount Sinai Health Systems and a Board Member of NewEdge Wealth and Brookline Capital Acquisition Corp II. Mr. Kempner is a Trustee of the James Loring Johnson 1944 Trust, the Johnson G3T, LLC, an American artist and sculptor, and several family members. Mr. Kempner received a B.A. from Yale University and an M.B.A. from Harvard Business School.
Mr. Ziegler is a Managing Director at LSH Partners, a registered merchant bank headquartered in New York.
Over the past three decades, John has been a senior investment banker, entrepreneur and senior executive for a multi-national apparel manufacturer. He spent over a decade at Goldman Sachs rising to Managing Director while executing M&A and capital raising transactions across a broad range of industry verticals including consumer, technology, general industrial and financial services. While at Goldman, Mr. Ziegler’s work included the Estee Lauder IPO, Bank of America/NationsBank merger, Wells Fargo/Norwest merger, SunTrust acquisition of National Commerce, sale of Mellon mortgage to Chase Bank, the W.P. Stewart IPO, Neuberger Berman common stock offerings and the AMR Corp IPO of Sabre.
In 2005, John joined Sandler O’Neill as a partner. His coverage focus was on large regional banks, asset managers and processing businesses. While at Sandler, he worked on several significant merger and capital raising transactions including the sale of North Fork Bank to Capital One, the sale of Mercantile Bank to PNC and a $2.2 billion capital raise for SunTrust during the financial crisis.
After two decades working with successful entrepreneurs and business leaders as an investment banker, Mr. Ziegler decided to pursue his own entrepreneurial path. In 2014, John co-founded an athletic apparel brand. After four years of growing and diversifying the business, he executed a vertical integration merger and equity investment in Active Apparel Group (AAG), the company’s apparel manufacturer. Following the completion of the merger, he joined the AAG Board and management team as co-CEO. During his tenure, AAG more than doubled its revenues, successfully navigated the COVID supply chain crisis, diversified its customer base and attracted a significant investment from Meaningful Partners in 2021.
In 2022, Mr. Ziegler stepped down from day-to-day management at AAG to focus on advising and investing in businesses that would benefit from his diverse experiences as a senior banker and business leader. John remains a Board member and significant shareholder in AAG.
Mr. Ziegler graduated from UCLA with a B.A. in Economics and Business.
Mr. Howard is a Senior Advisor at LSH Partners, which he joined in 2025. His career of over 40 years has spanned investment banking, private equity and investing, organizational leadership and corporate governance. Mr. Howard is also the Managing Partner of Heathcote Advisors LLC, which he formed in 2008 to provide financial advisory services and make principal investments. In 2012, Heathcote Advisors invested in the acquisition of Dynatech International and Military Parts Exchange, global parts suppliers and service providers for U.S. military aircraft and their engines. Mr. Howard served as Chief Executive Officer of Dynatech International from 2013, carrying out a strategic transformation of the company, until Heathcote Advisors sold its interests in 2019.
Mr. Howard spent over 20 years at Credit Suisse First Boston and its predecessor companies. Starting as an Associate in 1986, he was named a Managing Director in 1996 and Head of the Large Cap Diversified Group in 1999, focusing on industrial conglomerates, aerospace & defense and consumer/retail companies. He has advised on over $250 billion of M&A transactions, including Chrysler Corporation’s merger with Daimler-Benz AG, Tyco International’s acquisition of AMP Incorporated, IBM Corporation’s takeover of Lotus Development Corporation and General Electric/NBC’s acquisition of Vivendi’s Universal Group, and has been involved in capital raising and securities offerings of over $75 billion.
Mr. Howard is the Lead Director of Movado Group, Inc. (NYSE: MOV), where he has served on the Board since 1997 and chairs the Compensation and Human Capital Committee. He also chairs the Audit Committee of his Group Board of the BNY Family of Funds, is Chair of the Board of New England Expert Technologies, Inc., and is a director and Chair of the Audit Committee of Siddhi Acquisition Corp (Nasdaq: SDHI). From 2020 to 2021, Mr. Howard was Lead Director and Chair of the Audit Committee of Diamond Offshore Drilling, Inc., where he played a key role in the company’s bankruptcy process and was nominated for the 2021 Independent Director of the Year by Corporate Board Member/Chief Executive Group.
Mr. Howard received B.S. and M.S. degrees, with honors, from the Columbia University School of Engineering and Applied Sciences and an M.B.A. in Finance from the Columbia University Graduate School of Business, where he was named a Dean’s Scholar.
Mr. Niemczyk is a founding Partner of Loeb Spencer House Partners and a Senior Advisor to LSH Partners. Mr. Niemczyk’s investment banking career spans more than three decades in New York and London. Before joining the firm in October 2015, Mr. Niemczyk was Vice Chairman and Global Head of asset management investment banking at Bank of America Merrill Lynch. From 2001 to 2009 he was Managing Director with similar responsibilities at Morgan Stanley (New York and London) and UBS (London). At Lazard Freres & Co. from 1990 to 2001, Mr. Niemczyk was a General Partner, member of the Supervisory Board, the Opinion Committee and the Lazard/Daiwa SBCM Steering Committee. He started his Wall Street career in 1983 with Salomon Brothers in corporate finance and from 1988 to 1990 he was a generalist M&A banker with The Blackstone Group. During his career Mr. Niemczyk has advised financial institutions and non-financial companies on a broad range of M&A transactions, restructurings and public and private financings. Mr. Niemczyk received a B.A. (Economics) from Yale University, a M.Sc. (Economics) from the London School of Economics and an M.B.A. from Harvard Business School.
Ms. Prew is a Director of LSH Partners. Prior to LSH Partners, she worked for Loeb Partners Corporation and Goodwin Procter LLP. Ms. Prew joined Loeb Partners, the predecessor firm to LSH Partners, in 2011, working in the firm’s M&A, Restructuring and Capital Markets advisory businesses as well as principal investments. While at LSH Partners and Loeb Partners, Ms. Prew has advised Medafor Inc. on its sale to C.R. Bard, Inc., Infraredx Inc. on its sale to Nipro Corporation, Liberty Woods International on its sale to CoorsTek, IDOC on its sale to The Riverside Company, Janus Capital on its merger with Henderson Group, Therapath LLC on its sale to a Laboratory/Diagnostics company, FallLine Group on its private equity fundraise, Torrey Cove on its sale to Aksia, Parallel on the refinance of its Seller Note, Central Park Group on its sale to Macquarie Asset Management, and Tarpon Blue on its acquisition of Collier Enterprises.
Ms. Prew received a B.A. from The George Washington University in 2005 and a J.D. from Boston University School of Law in 2008. She is admitted to the bars of New York and the District of Columbia.
Mr. Bradley is an Associate at LSH Partners.
Mr. Bradley’s advisory experience includes Reprotech on its strategic combination with TMRW Life Sciences, Crockett Partners on its capital raise and Vestar Development Co. on strategic advisory and valuation.
Mr. Bradley received a B.S. in Business Administration with a concentration in finance, and minor in economics, from the University of Richmond in 2023.
Mr. Di Vito is an Analyst at LSH Partners.
Mr. Di Vito received a BBA with area depths in Finance and Accounting, from Emory University’s Goizueta Business School in 2025.
Prior Experience
Our partners have built their careers at some of the world’s leading financial institutions.









Contact
The most valuable engagements start well before a decision is made. If you are weighing your options, we would welcome a confidential conversation.