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Horizon 3 Venture Studio

Venture studio

San Francisco Β· 1 people tracked

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Investment thesis

Horizon 3 partners with large enterprises to uncover hidden business opportunities within their existing operations. The studio recruits experienced founders to build new companies outside corporate walls, converting cost centers into revenue-generating businesses while mitigating risks associated with traditional corporate innovation such as legal, regulatory, and brand concerns.

Invests inEnterprise SoftwareSector AgnosticSan Francisco

Source: firm website, verified Aug 6, 2026.

HQ
San Francisco, CA, US
Instruments
Equity

Team Β· 1 people

from public directories
Leonard SpeiserΒ· Managing Partnerin𝕏

Frequently asked questions

What sectors does Horizon 3 Venture Studio focus on?
Horizon 3 Venture Studio focuses on Enterprise Software, Sector Agnostic.
Where is Horizon 3 Venture Studio located?
Horizon 3 Venture Studio is headquartered in San Francisco, US.

Images

Horizon 3 Venture Studio photo

Co-investors Β· 17

Greylock Partners

Greylock Partners is an early-stage venture capital firm that partners with founders building novel companies, providing deep engagement, network, and resources to each investment.

$100K – $200M
Founder Collective

Founder Collective is an early-stage venture capital firm focused on seed and pre-seed investments across all sectors.

Unknown Ventures

Unknown Ventures is a venture studio based in Austin that provides funding and operational support to early-stage startups at the pre-seed to Series A stage. The firm backs founders seeking to create innovative solutions that improve human experience.

UpHonest Capital

UpHonest Capital is a Silicon Valley-based investment firm founded in 2017 that supports cross-border entrepreneurship and investment between China and the United States, and runs media, scout, and incubation programs.

$50K – $1M
Resolute Ventures

Resolute Ventures is an early-stage venture capital firm that leads pre-seed and seed rounds, backing founders with grit, energy and conviction.

$1M
Practical Venture Capital

Practical Venture Capital (PVC) is a venture firm focused on the secondary market for private, late-stage technology companies. It acquires stakes in mature companies through its Halftime Fund.

Todd and Rahul’s Angel Fund

Todd and Rahul's Angel Fund is an early-stage investment vehicle run by founders Todd Goldberg and Rahul Vohra, who write $300k-$500k checks into early-stage startups and help with product/market fit, go-to-market, and future fundraising.

$300K – $500K
Ribbit Capital

Ribbit Capital is a venture firm that partners with founders challenging incumbents across areas such as AI, global commerce, infrastructure, wealth management, money movement, identity, data, and energy, with a strong emphasis on brand-building.

$100K – $15M
TSVC

TSV Capital (TSVC), formerly TEEC Angel Fund, is a Silicon Valley seed-stage venture firm that backs technical founders at the earliest stages, having invested in over 200 early-stage companies.

$1M
Primary Venture Partners

Primary Venture Partners is a seed-stage venture fund that backs founders at the earliest moments, combining deep sector specialization with a large operating team that provides hands-on support.

$1M – $3M
TenOneTen Ventures

TenOneTen Ventures is an early-stage venture firm based in Los Angeles that invests primarily in B2B and AI/infrastructure startups, backing founders as a hands-on partner.

$500K – $5M
Gigascale Capital

Gigascale Capital is an early-stage investment firm backing founders building physical systems and infrastructure across energy, factories, supply chains, and infrastructure for climate impact.

β–Ά5 more co-investors

Foothill VenturesWI Harper GroupOperator VenturesBitwise Asset ManagementSilicon Ventures

Firms observed investing alongside Horizon 3 Venture Studio, from public investor directories. Shared companies are the overlap with Horizon 3 Venture Studio's recorded portfolio.

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