Single Family Office

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Ankur Jain

Ankur Jain's single-family office invests directly in Seed-stage enterprise software, AI/ML, and cybersecurity startups from San Mateo, CA.

Ankur Jain

Jain deployed proceeds from the 2021 sale of his prior venture into a dedicated single-family office headquartered in San Mateo, California. His disclosed investment activity concentrates on Seed-stage startups across North America. The wealth origin traces directly to Jumbleberry, a performance-marketing and e-commerce enablement platform Jain co-founded and scaled before its exit to a private equity consortium. Jain's deployment targets early-stage enterprise technology companies. Altss-tagged sector focuses include Enterprise Software, AI/ML, and Cybersecurity, with additional exposure to Data Analytics, Workflow Automation, and Marketing & Sales technology. The firm invests directly in startups, consistent with a Seed-stage direct-investment model. The geographic footprint is concentrated in North America, with the San Mateo base providing proximity to Bay Area deal flow. The office is named for and led by its single principal, Ankur Jain, who sources and executes investments directly. The operation remains lean, with no disclosed separate investment committee, additional offices, or adjacent philanthropic or operating-company vehicles. The investment posture is purely direct Seed-stage, with no evidence of fund commitments or SPV structures in public filings. The structural differentiator is its principal-driven model — a single family office shaped entirely by one operator-turned-investor who writes initial checks from personal liquidity without external LPs or institutional timelines. This architecture allows for concentrated conviction bets and rapid decision-making, distinct from multi-family office platforms or outsourced CIO arrangements common among post-exit founders.

General information

Firm type

Single Family Office

Year founded

AUM

Undisclosed

Location

Region

North America

Country

United States

City

San Mateo

Corporate office

San Mateo, CA, United States

Principals

Ankur Jain

Principal

Sector focus

Enterprise SoftwareAI/MLCybersecurityData AnalyticsWorkflow AutomationMarketing & Sales

Frequently asked questions

Who makes investment decisions at Ankur Jain's family office?

Ankur Jain serves as the sole principal and decision-maker. He sources, evaluates, and executes all investments directly, consistent with a lean single-family office structure. There is no public evidence of a separate investment committee or delegated CIO.

What is the source of capital for the office?

The office's capital originates from Jain's 2021 sale of Jumbleberry, the e-commerce performance-marketing platform he co-founded, to a private equity consortium. The exit provided the liquidity base from which the family office was established.

Does the Jain family office invest in funds or only directly into companies?

All publicly observable activity points toward direct investments in startups, with no evidence of fund-of-fund commitments or LP positions in external venture funds. The office operates as a direct-investment vehicle at the Seed stage.

What check size and stage should founders expect?

Jain targets Seed-stage companies across North America. Exact check sizes are not publicly disclosed. Given the direct, principal-led structure, initial checks are likely concentrated and sized to secure meaningful early ownership, consistent with post-exit founder family offices deploying personal capital.

Which sectors does the firm focus on, and are there any it avoids?

Known sector focuses include Enterprise Software, AI/ML, Cybersecurity, Data Analytics, Workflow Automation, and Marketing & Sales technology. There are no publicly stated exclusionary sectors. The portfolio tilts toward technical founders building B2B solutions.

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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