Sea Purity Investments

What Sea Purity Investments does

Sea Purity Investments is a private, multi-strategy, multi-generational family office headquartered in San Clemente, California. The firm invests exclusively its own capital — explicitly stating it does not manage outside money — across public and private growth companies operating in sectors including software, disruptive technology, pharma/biotech, medtech, consumer, socially responsible business models, real estate, interactive entertainment, and alternative funds. Investment instruments span common equity, warrants, debt, convertible securities, and LP fund interests, with assets split approximately 50/50 between direct investments and fund LP positions; over 35% of the portfolio is concentrated in Southern California-based companies.

The firm is led by Matthew Hayden, who founded the predecessor entity Hayden Communications in 1996, sold it in 2006, and co-built the North American division of MZ GROUP before establishing Sea Purity. Across a 20+ year career, Hayden has executed investor relations and capital-raising programs for over 200 public and private companies, raising more than $10 billion in equity and debt markets. Deal flow is sourced primarily through personal relationships, a curated co-investor network, and sector-spanning subject matter expertise. Documented realized outcomes include a 13x return on Dosh (sold to Cardlytics in March 2021), approximately 12x on Acorns (2021), 7x on Provention Bio, up to 12x on Encore Vision (sold to Novartis for $500 million), and a 500% return on Energous; four portfolio companies have reached $1 billion-plus valuations.

The business model is principal investing rather than fee-based asset management. Sea Purity does not charge management or performance fees, does not disclose portfolio economics, and operates with a small team of 11-50 employees. Revenue is generated exclusively through capital appreciation, dividends, and exit proceeds on portfolio holdings. In January 2026, the firm extended beyond pure principal investing via a capital partnership with Crest Surf Clubs, in which Hayden was appointed Director of Capital Markets and Business Development — signaling potential incremental activity in capital formation advisory alongside the core investment mandate.

Name

Sea Purity Investments

Legal name

Sea Purity Investments

Website

https://seapurity.us

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Sea Purity Investments is a private, multi-strategy family office in San Clemente, California that invests its own capital across public and private growth companies spanning software, biotech, medtech, consumer, real estate, and alternative funds, led by Matthew Hayden.

Ownership category

akta.pro rank

Product category

Family Office Investment Management

NAICS

Other Financial Investment Activities (5239), All Other Financial Investment Activities (52399)

SIC

Investment Advice (6282)

akta.pro primary industry

Sustainable Private Markets (Impact PE/VC, Private Credit, Infrastructure) (FSAAALAG)

akta.pro secondary industry

Specialty Real Assets / Niche Strategies (Marinas, Student Housing, Self-Storage, Life Science RE) (FSANAEAO)

Keywords

• Family office investments
• Private equity investing
• Venture capital funding
• Growth equity backing
• Alternative fund investments

Headquarters

HQ city

San Clemente

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D

Revenue model

1. Investment Returns and Capital Gains: Sea Purity Investments generates returns through capital appreciation, dividends, and exit proceeds from its portfolio of public and private company investments across multiple sectors including software, pharma/biotech, medtech, consumer, and alternative funds. The firm invests in both direct equity positions and fund LP interests, splitting assets approximately 50/50 between direct investments and alternative funds.

Distribution channels1 record

Marketing channels1 record

Core offering

Sea Purity Investments is a multi-strategy, multi-generational family office that invests its own capital across public and private growth companies in multiple sectors, including software, pharma/biotech, medtech, consumer, socially responsible businesses, income-generating assets, and alternative funds. Investments are executed through common equity, warrants, debt, convertible securities, and LP interests, with assets split approximately 50/50 between direct investments and fund positions. The firm explicitly does not manage outside money and seeks to deliver positive long-term absolute returns by backing management teams with integrity, subject matter expertise, and skin in the game.

Product overview

Sea Purity Investments is a multi-strategy, multi-generational family office that provides investment management services. The firm focuses on producing positive long-term absolute returns through investments in both public and private growth companies operating across multiple sectors, including socially responsible business models, income generating assets, and alternative funds. The investment structure includes common equity, warrants, debt, convertible securities, and LP interests. Assets are split 50/50 between funds and direct investments. The firm does not offer distinct technology products, modules, or branded service offerings.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 12x return from seed investment in Acorns
• +4 more outcomes

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators11 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Aspiriant: Independent wealth management firm serving high-net-worth and ultra-high-net-worth families with portfolio management, alternative investments, and direct deal access. Comparable to Sea Purity in serving family-office-style mandates with multi-strategy capabilities.
• Iconiq Capital: Multi-family office and merchant banking platform that invests in growth-stage technology and consumer companies while providing wealth advisory services. Highly comparable to Sea Purity's blend of multi-strategy direct investing alongside fund/LP allocations, with a similar emphasis on long-duration capital and value-added shareholder engagement.
• Cresset Capital: Multi-family office serving ultra-high-net-worth families with integrated investment advisory, direct investing, and alternative fund access. Comparable to Sea Purity as a multi-strategy family-office platform offering both proprietary deal access and curated third-party fund exposure.
• Corbin Capital Partners: Multi-strategy alternative investment firm operating as a fund-of-funds and direct investor across private and public markets. Directly comparable to Sea Purity's blend of fund LP positions and direct growth equity, with a similar focus on absolute returns through any environment.
• Lourd Murray: Boutique multi-family office providing integrated investment management and advisory services to wealthy families, including direct private investments and alternative fund access. Directly comparable in scale, multi-strategy approach, and Southern California footprint.
• Patient Capital Management: Single-family office of Laurene Powell Jobs focused on long-duration, mission-aligned direct investments across multiple sectors. Comparable to Sea Purity as a founder-led family office applying a long-term, values-driven mandate to a diversified growth portfolio.
• Glenmede: Independent investment and wealth management firm founded by the Pew family, serving endowments, foundations, and wealthy families with multi-asset portfolios. Comparable multi-strategy family-office-style platform with long-duration horizon and direct/private-market capabilities.

Broad incumbents

• Brown Brothers Harriman Wealth Management: Large, established private partnership offering multi-family-office services including direct private investments, alternative fund selection, and traditional portfolio management. Comparable in service breadth and multi-strategy mandate but operates at much greater scale and with a longer institutional track record than Sea Purity.

Others

• Hayden Communications (haydenir.com): Investor relations firm founded by Matt Hayden in 1996 and sold in 2006, now operating as an independent IR advisory. Adjacent ecosystem participant — not a competitor but a related service provider that shares founder DNA with Sea Purity and historically supported small-cap capital markets access.

Emerging players

• Brownson Asset Management: Boutique family office focused on direct private investments and fund allocations for a small number of families. Comparable to Sea Purity in scale and approach but with a narrower sector focus, making it a useful emerging-stage analog.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sea Purity Investments