Private Equity

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Poseidon Asset Management

Poseidon Asset Management, a San Francisco-based firm investing exclusively in cannabis and hemp since 2014, claims the title of pioneer cannabis hedge...

Poseidon Asset Management logo

Poseidon Asset Management

Founded in 2014, Poseidon Asset Management set up in San Francisco as a private equity firm targeting the legal cannabis industry. The firm launched before most states had established recreational markets and built its strategy around the thesis that marijuana and hemp would evolve from illicit commerce into a regulated consumer-product sector. Its early entry gave it access to a generation of plant-touching and ancillary companies that traditional venture and private equity firms avoided because of federal prohibition. Poseidon runs a concentrated strategy focused on early-stage companies — seed, start-up, and early-stage — across the cannabis and hemp supply chain. The firm evaluates direct investments rather than fund commitments, and its contact page suggests it operates a mastermind or founder support program alongside capital deployment. The portfolio spans sub-sectors such as cultivation technology, cannabinoid processing, retail operations, and consumer packaged goods. Because cannabis remains federally illegal in the United States, Poseidon structures its investments to comply with state-level regulations while accepting the tax consequences of Internal Revenue Code Section 280E for plant-touching portfolio companies. The firm's scale is not publicly disclosed. Its website lists no AUM figures, team size, or additional offices beyond its San Francisco headquarters. The firm does not maintain a LinkedIn presence. Poseidon has operated through both the 2018–2019 cannabis capital boom and the subsequent valuation correction that followed overcapacity in Canadian licensed producers and delays in US federal reform. Its survival through that cycle marks it as one of the longest-running dedicated cannabis investment vehicles still active. Poseidon's structural differentiator is its single-sector mandate applied through a private equity fund structure — a legal and operational posture that most institutional investors cannot adopt because of their limited-partner restrictions on federally illegal substances. By operating outside the registered-fund ecosystem and concentrating solely on cannabis, the firm avoids the dilution of focus that comes with broader health-and-wellness or vice-fund mandates. That narrow aperture — cannabis since 2014, nothing else — is its identity.

General information

Firm type

Private Equity

Year founded

2014

AUM

Undisclosed

Location

Region

North America

Country

United States

City

San Francisco

Corporate office

San Francisco, CA, United States

Frequently asked questions

What does Poseidon Asset Management invest in?

The firm invests solely in the marijuana and hemp sectors. Its website states it has focused on cannabis since its 2014 founding. Poseidon targets early-stage companies including seed, start-up, and early-stage rounds. The mandate covers both plant-touching businesses and ancillary service and technology companies across the cannabis supply chain.

Is Poseidon structured as a hedge fund or a private equity firm?

Poseidon describes itself on its own website as a 'pioneer cannabis hedge fund' but is classified internally within Altss research as a private equity firm. The distinction matters because many cannabis funds use a hedge fund structure to hold public equities like Canadian licensed producers, while Poseidon's focus on early-stage private companies aligns it more closely with venture capital. The firm has not publicly clarified its exact legal structure.

How does Poseidon source deals?

Poseidon's website includes separate contact portals for investors and founders seeking capital, alongside a 'Mastermind Program' for founders. The existence of a founder-facing intake process and a founder-support program suggests the firm relies on direct inbound applications and network-driven deal flow rather than intermediary-led auctions. The firm's longevity in a niche sector likely provides it with early visibility into companies as they form.

Why would an investor commit to a cannabis-only fund given federal prohibition?

Dedicated cannabis funds accept the illiquidity and tax burden that diversified funds typically avoid. Under Internal Revenue Code Section 280E, plant-touching cannabis businesses cannot deduct ordinary business expenses, which suppresses enterprise value relative to non-cannabis peers. An investor in a fund like Poseidon is betting that this valuation discount will close as federal law evolves, and that a dedicated manager can underwrite that complexity more effectively than a generalist. The trade-off is high concentration risk in a single regulated sector.

Does Poseidon Asset Management disclose its AUM or team size?

No. The firm's website lists no assets under management, no team biographies, and no portfolio company names. It also does not maintain a LinkedIn page. This level of opacity is consistent with a firm that raises capital from a small number of high-net-worth individuals and family offices rather than from institutions that require Form ADV filings.

Profile maintained by 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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