The marine insurance industry in the US protects assets related to maritime activities. It covers cargo, vessels, and even liability for maritime operations. Leading players include large corporate insurance brokers, specialized marine underwriters, and tech-driven insurtech firms that enhance risk management processes. The sector is evolving, embracing digital transformation and innovative risk solutions that respond to changing global trade patterns and environmental challenges. As the shipping industry grows, driven by e-commerce and globalization, marine insurance stands at the forefront, adapting to new risks like climate change and cybersecurity threats.


This list highlights 16 notable investors shaping the marine insurance sector. They range from corporate giants like HUB International, founded in 1998 and boasting over 10,000 employees, to venture capital firms such as Y Combinator, based in San Francisco since 2005. Investments in 2024 varied, with notable deal counts reflecting strategic interest in this specialized market.


Top 16 Marine Insurance Investors in the US


1. AssuredPartners

  • Website: assuredpartners.com
  • Type: Corporate
  • Headquarters: Orlando, Florida, United States (USA)
  • Founded year: 2011
  • Headcount: 10001+
  • Number of deals in 2024: 7
  • LinkedIn: assuredpartners

AssuredPartners is an insurance brokerage and risk management consulting firm based in Orlando, Florida, founded in 2011. With over 10,000 employees, the company provides a wide range of services, including business insurance, employee benefits, and risk management solutions tailored to various industries. Notably, AssuredPartners has made strategic acquisitions in the marine insurance sector, including Lucantha Marine Insurance in January 2014 and Bristol Marine Insurance in April 2024. These acquisitions reflect the firm's dedication to enhancing its marine insurance offerings and expanding its market presence in this specialized area of insurance. Additionally, AssuredPartners has acquired other insurance agencies, further solidifying its position in the broader insurance market while maintaining a focus on marine insurance.


2. HUB International

  • Website: hubinternational.com
  • Type: Corporate
  • Headquarters: Chicago, Illinois, United States (USA)
  • Founded year: 1998
  • Headcount: 10001+
  • Number of deals in 2024: 37
  • LinkedIn: hub-international

HUB International Limited is a prominent insurance brokerage based in Chicago, Illinois, founded in 1998. With over 10,000 employees, the firm specializes in a comprehensive array of insurance and risk management services tailored for businesses, organizations, and individuals. Their offerings include business insurance, employee benefits, retirement services, and personal insurance, aimed at helping clients manage risks and protect their assets across various industries. Notably, HUB International has made significant strides in the marine insurance sector, highlighted by their acquisition of C&L Marine Insurance on March 10, 2025. This strategic move underscores their commitment to enhancing their marine insurance capabilities. Additionally, their broader acquisition strategy, which includes various insurance agencies, positions them as a versatile player in the insurance market, capable of addressing diverse client needs, including those in the marine industry.


3. Plug and Play Tech Center


Plug and Play Tech Center is an innovation hub and venture capital firm based in Sunnyvale, California, founded in 2006. They connect startups with corporations to foster growth and innovation, offering various programs including accelerator initiatives and investment opportunities primarily in the technology sector. In 2024, they have made 253 investments, showcasing their active role in the venture capital landscape. Among their notable transactions, they invested in Redkik Inc., a company that is bringing per shipment cargo insurance to the global market, highlighting their engagement in the marine insurance domain. They also participated in funding Flock, a startup focused on drone insurance, which could have applications in marine insurance. These transactions illustrate Plug and Play's commitment to supporting innovative insurance solutions, making them a relevant player in the marine insurance investment space.


4. Y Combinator

  • Website: ycombinator.com
  • Type: Venture Capital
  • Headquarters: San Francisco, California, United States (USA)
  • Founded year: 2005
  • Headcount: 51-200
  • Number of deals in 2024: 802
  • LinkedIn: y-combinator

Y Combinator is a prominent startup accelerator and venture capital firm based in San Francisco, California, founded in 2005. It provides funding and mentorship to early-stage technology companies, helping entrepreneurs launch and grow their businesses through structured programs and resources like the Startup School. Y Combinator has successfully launched over 4,000 startups, making it a key player in the technology startup ecosystem. Among its notable transactions, Y Combinator participated in funding rounds for Tint.ai, a US-based insurance technology platform that raised $25 million in a Series A round, and Amenli, an Egyptian digital insurance startup that raised $2.3 million in a seed round. These investments highlight Y Combinator's engagement in the insurance technology sector, which is relevant to marine insurance.


5. IFC - International Finance Corporation

  • Website: ifc.org
  • Type: Venture Capital
  • Headquarters: Washington, D.C., District Of Columbia, United States (USA)
  • Founded year: 1956
  • Headcount: 1001-5000
  • Number of deals in 2024: 107
  • LinkedIn: ifclinkedin

The International Finance Corporation (IFC) is a not-for-profit organization established in 1956, headquartered in Washington, D.C. It focuses on private sector development in emerging markets by providing investment, advisory, and asset management services to businesses and financial institutions. IFC operates in over 100 countries, addressing poverty and promoting sustainable development. In recent years, IFC has made significant investments in the insurance sector, including notable transactions such as its funding of Roojai, a Thai InsurTech startup, which raised $7 million in Series A funding in 2018, and later participated in a Series B funding round for the same company. Additionally, IFC led a EUR 7 million Series B funding round for Hellas Direct, a next-generation insurance company, showcasing its commitment to innovative insurance solutions. These transactions highlight IFC's engagement in the insurance industry, although it does not specifically focus on marine insurance.


6. Liquid 2 Ventures

  • Website: liquid2.vc
  • Type: Venture Capital
  • Headquarters: San Francisco, California, United States (USA)
  • Founded year: 2015
  • Headcount: 1-10
  • Number of deals in 2024: 91
  • LinkedIn: liquid-2-ventures

Liquid 2 Ventures is a venture capital firm based in San Francisco, California, founded in 2015. The firm specializes in investing in technology startups at the pre-seed and seed stages, as well as growth-stage companies. They provide capital, mentorship, and access to a vast network of industry insiders to help founders navigate their entrepreneurial journeys. Notably, Liquid 2 Ventures has participated in funding rounds for several insurance-related startups, including Amenli, an Egyptian digital insurance startup, and Plover Parametrics, which raised significant capital in seed rounds. These investments indicate their interest in the insurance sector, which may encompass marine insurance as part of their broader strategy.


7. Stone Point Capital

  • Website: stonepoint.com
  • Type: Private Equity
  • Headquarters: United States (USA)
  • Founded year: 2005
  • Headcount: 51-200
  • Number of deals in 2024: 6
  • LinkedIn: stone-point-capital

Stone Point Capital is an investment management firm specializing in private equity and credit investment strategies, founded in 2005 and based in the United States. The firm focuses on managing assets for institutional investors and high-net-worth individuals, delivering superior risk-adjusted returns through strategic partnerships and investment opportunities across various sectors, including asset management, healthcare, and insurance. Notably, Stone Point Capital has been involved in significant transactions within the insurance industry, such as its investment in Inigo, a specialty re/insurance holding company that raised $800 million to launch its operations, indicating a focus on innovative insurance solutions. Additionally, their collaboration with American International Group (AIG) to establish Private Client Select Insurance Services highlights their commitment to the insurance market, particularly in catering to high-net-worth clients. These transactions underscore Stone Point's active role in the insurance sector, making them a relevant player in the marine insurance investment landscape.


8. The Carlyle Group

  • Website: carlyle.com
  • Type: Private Equity
  • Headquarters: Washington, D.C., District Of Columbia, United States (USA)
  • Founded year: 1987
  • Headcount: 1001-5000
  • Number of deals in 2024: 25
  • LinkedIn: the-carlyle-group

The Carlyle Group Inc. is a prominent investment management firm founded in 1987, specializing in private equity, real assets, and private credit. With a global presence and a focus on delivering tailored investment solutions to institutional investors, Carlyle has established itself as a leader in alternative asset classes. Notably, Carlyle has made significant strides in the insurance sector, acquiring companies such as the Hilb Group, a fast-growing insurance brokerage, and NSM Insurance Group for $1.78 billion. Additionally, Carlyle's acquisition of a majority stake in Sedgwick Claims Management Services for approximately $6.7 billion further underscores its commitment to the insurance industry. These transactions highlight Carlyle's strategic positioning within the insurance market, which includes potential exposure to marine insurance.


9. Deep Tech Fund (an Alumni Ventures Fund)

  • Website: av.vc
  • Type: Venture Capital
  • Headquarters: Manchester, New Hampshire, United States (USA)
  • Founded year: 2023
  • Headcount: 51-200
  • Number of deals in 2024: 258
  • LinkedIn: deep-tech-fund-av-focused-fund

The Deep Tech Fund (an Alumni Ventures Fund) is a venture capital firm based in Manchester, New Hampshire, founded in 2023. It provides accredited investors and institutions with access to professionally-managed, diversified venture portfolios, leveraging a network of over 10,000 investors to connect them with high-quality investment opportunities in the startup ecosystem. Notably, the fund has been involved in several transactions relevant to the insurance industry, including a Series B investment in battleface, which raised $35 million in March 2024, and multiple rounds of funding for Vouch, an insurance company that raised $60 million in Series C in September 2021. These transactions highlight the fund's engagement with companies that operate within the insurance sector, which may encompass marine insurance.


10. Amwins

  • Website: amwins.com
  • Type: Corporate
  • Headquarters: Charlotte, North Carolina, United States (USA)
  • Founded year: 1998
  • Headcount: 5001-10000
  • Number of deals in 2024: 4
  • LinkedIn: amwins-group

Amwins is a leading specialty insurance broker founded in 1998, headquartered in Charlotte, North Carolina. The firm provides tailored insurance solutions across various industries, including construction, healthcare, and energy. Notably, Amwins has made significant strides in the marine insurance sector, particularly through its acquisition of The American Equity Underwriters, Inc. (AEU) in 2007, a national provider of insurance programs for maritime employers. This strategic acquisition highlights Amwins' commitment to addressing the complex insurance needs of the marine industry. In addition to this, Amwins has expanded its portfolio through various acquisitions, including the THB Group and Equisure, Inc., enhancing its overall capabilities in specialty insurance distribution. With a focus on difficult placements and unique opportunities, Amwins leverages its extensive market relationships and expertise to deliver effective insurance solutions across multiple sectors, including marine insurance.


11. Blackstone

  • Website: blackstone.com
  • Type: Private Equity
  • Headquarters: New York, New York, United States (USA)
  • Founded year: 1985
  • Headcount: 1001-5000
  • Number of deals in 2024: 57
  • LinkedIn: blackstonegroup

Blackstone Inc. is a leading investment management firm based in New York, specializing in alternative investments. Founded in 1985, Blackstone has built a reputation for its extensive portfolio and investment strategies that focus on delivering lasting value. The firm has been involved in significant transactions within the insurance sector, including a notable investment in Aspen Insurance Holdings Limited, where it raised over $654 million in a private equity round in 2002. Additionally, Blackstone has participated in debt financing for Westland Insurance, raising $200 million in December 2022 and $250 million in January 2022. Furthermore, Blackstone's acquisition of Alliant Insurance Services in 2007 highlights its commitment to the insurance industry, which encompasses marine insurance. These transactions demonstrate Blackstone's active role in the insurance market, making it a relevant player in the marine insurance investment landscape.


12. Kkr

  • Website: kkr.com
  • Type: Private Equity
  • Headquarters: New York, New York, United States (USA)
  • Founded year: 1976
  • Headcount: 1001-5000
  • Number of deals in 2024: 74
  • LinkedIn: kkr

KKR & Co. Inc. is a prominent investment firm based in New York, specializing in private equity, credit, infrastructure, and real estate. Founded in 1976, KKR provides asset management solutions to both institutional investors and individual clients, helping them navigate complex investment landscapes to achieve strong financial returns. In recent years, KKR has made notable investments in the insurance sector, including a majority stake acquisition in the French insurance broker April Group for approximately €2.3 billion and a 9.99% stake in Shriram General Insurance for about $237 million. These transactions highlight KKR's active role in the insurance industry, although they do not specifically target marine insurance. Additionally, KKR's acquisition of Sedgwick Claims Management Services, which specializes in claims processing, further demonstrates their involvement in the broader insurance landscape. This diverse portfolio positions KKR as a significant player in the insurance market, with potential future interests in marine insurance.


13. Warburg Pincus LLC

  • Website: warburgpincus.com
  • Type: Private Equity
  • Headquarters: New York, New York, United States (USA)
  • Founded year: 1966
  • Headcount: 501-1000
  • Number of deals in 2024: 24
  • LinkedIn: warburg-pincus

Warburg Pincus LLC is a leading global private equity firm specializing in growth investments, founded in 1966 and based in New York, New York. With over $83 billion in assets under management, the firm partners with management teams across various sectors, including healthcare, technology, and financial services. Notably, Warburg Pincus has made significant investments in the insurance sector, including the acquisition of K2 Insurance Services, a specialty insurance program manager, which indicates their engagement in the insurance market. They also participated in funding rounds for SBI General Insurance and Fortegra, further demonstrating their commitment to the insurance industry. These transactions highlight their strategic approach to investing in companies that operate within the broader insurance landscape, which may encompass marine insurance.


14. Abry Partners

  • Website: abry.com
  • Type: Private Equity
  • Headquarters: Boston, Massachusetts, United States (USA)
  • Founded year: 1989
  • Headcount: 51-200
  • Number of deals in 2024: 2
  • LinkedIn: abry-partners

Abry Partners is a private equity firm based in Boston, Massachusetts, specializing in investments in middle-market companies across the communications, media, information, and business services sectors. Founded in 1989, the firm manages approximately $5.4 billion in active capital and focuses on providing strategic support and capital to help companies grow and achieve their objectives. Notably, Abry Partners has made significant investments in the insurance sector, including transactions such as the acquisition of High Street Insurance Partners, a full-service insurance brokerage, and a growth investment in Socius Insurance Services, which aims to accelerate its strategic growth plan. Additionally, they have invested in The Hilb Group, a broker that supports national expansion efforts in the insurance market. These transactions highlight Abry's active role in the insurance industry, which may encompass marine insurance as part of their broader investment portfolio.


15. Clocktower Ventures


Clocktower Ventures is a venture capital firm based in Santa Monica, California, founded in 2015. The firm specializes in investing in innovative startups within the financial services sector, with a keen interest in addressing climate change challenges. Clocktower Ventures provides capital and strategic guidance to help entrepreneurs succeed in a competitive market. Notable transactions include investments in Bunker, a San Francisco-based insurance technology startup that focuses on contract-related insurance, and Embroker, which is involved in the insurance space. Additionally, they participated in funding rounds for Insurate, a data science-based underwriter, indicating their engagement in the insurance technology landscape. These investments suggest a broader interest in insurance innovation, although not exclusively in marine insurance.


16. FJ Labs

  • Website: fjlabs.com
  • Type: Venture Capital
  • Headquarters: New York, New York, United States (USA)
  • Founded year: 2015
  • Headcount: 11-50
  • Number of deals in 2024: 169
  • LinkedIn: fj-labs

FJ Labs is a venture capital firm based in New York, founded in 2015, that specializes in investing in marketplace and network effect businesses. With a portfolio of over 1,000 companies, many achieving unicorn status, FJ Labs provides capital and strategic guidance to entrepreneurs across various industries, including e-commerce and logistics. Notably, they have invested in several insurtech companies, such as Cleverea, which raised €5 million to launch new products and accelerate growth, and Bondaval, a digital platform for B2B credit security that raised $15 million in its Series A funding. These transactions highlight FJ Labs' engagement in the insurance sector, making them a relevant player in the marine insurance landscape.



Marine Insurance Insights: Key Investors in the US


InvestorHeadquarterSizeFoundedDeals 2024
AssuredPartnersOrlando, Florida, United States (USA)10001+20117
HUB InternationalChicago, Illinois, United States (USA)10001+199837
Plug and Play Tech CenterSunnyvale, California, United States (USA)501-10002006253
Y CombinatorSan Francisco, California, United States (USA)51-2002005802
IFC - International Finance CorporationWashington, D.C., District Of Columbia, United States (USA)1001-50001956107
Liquid 2 VenturesSan Francisco, California, United States (USA)1-10201591
Stone Point CapitalUnited States (USA)51-20020056
The Carlyle GroupWashington, D.C., District Of Columbia, United States (USA)1001-5000198725
Deep Tech Fund (an Alumni Ventures Fund)Manchester, New Hampshire, United States (USA)51-2002023258
AmwinsCharlotte, North Carolina, United States (USA)5001-1000019984
BlackstoneNew York, New York, United States (USA)1001-5000198557
KkrNew York, New York, United States (USA)1001-5000197674
Warburg Pincus LLCNew York, New York, United States (USA)501-1000196624
Abry PartnersBoston, Massachusetts, United States (USA)51-20019892
Clocktower VenturesSanta Monica, California, United States (USA)1-10201518
FJ LabsNew York, New York, United States (USA)11-502015169


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