DFX Intelligence

JO Ann Heidi Roizen

Trusteeat Mobius Venture Capital, Inc.· CO

As of 2026-09-12 · this person's identity; each section below carries its own date

Current roles: 1
Investments attributed: 0
Board seats: 0

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As of 2026-09-12 · this person's identity; each section below carries its own date

What matters now

1999
since
Trustee at Mobius Venture Capital, Inc. since 1 Jul 1999.
Tenure says how settled this partner is at the firm.
FactForm ADV Schedule A and the firm's team pageFor Founders, LPsRoles →

Relationship network

2 connected entities

From the roles sources name this person in, the investments a source attributes to them, and the boards and funds Form D names them on.

JO Ann Heidi Roizen

Trustee

Reading the network

Organization

›How strength and recency are read

Venture relationships are not scored. Each line names its claim: a round led or joined, a board seat or a filing that names the firm, a listing on a portfolio page (dated by when DFX saw it, never by when the investment was made), a disclosed LP commitment, or a co-investor pair counted from observed participations. Observed means a named source says so; Derived means DFX counted it from observed rows; Inferred means a match that may be wrong.

Darker lines were active in the last 24 months or are current; lighter lines are older or undated.

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Which companies and boards is JO Ann Heidi Roizen connected to?

How am I connected?

Name your firm, a company or a person, and DFX finds the published routes to JO Ann Heidi Roizen: a shared portfolio company or board, a prior employer, a co-investor, a shared LP or service provider. Every step is a filed or published record with its source; none is a guess about who knows whom.

See how you connect to JO Ann Heidi Roizen

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Drawing the relationship network…

Roles

1 current, 1 past

Mobius Venture Capital, Inc. Trustee
Jul 1, 1999 to present · “Schedule A: ROIZEN, JO ANN, HEIDI, TRUSTEE, since 07/1999, ownership F, control person Y”
Fact Form ADV
Foundry Group, LLC Trustee Of Jo Ann Roizen, Trustee Of The Mohler / Roizen Revocable Trust
Jul 1, 1999 to Mar 30, 2022 · “Listed on Schedule A of filing 2021-03-31 as TRUSTEE OF JO ANN ROIZEN, TRUSTEE OF THE MOHLER / ROIZEN REVOCABLE TRUST, absent from filing 2022-03-30”
Inference Form ADV

Investments attributed to this person

No investment attributed yet. Attribution needs a source naming this person on the deal: a quote, a board seat, a portfolio page credit.

Board seats and vehicles

0 boards, 0 vehicles

None on record.

Timeline

5 dated entries: events, attributed deals, board seats and role changes

Mar 30, 2022
JO Ann Heidi Roizen (Trustee Of Jo Ann Roizen, Trustee Of The Mohler / Roizen Revocable Trust) no longer on Schedule A of Foundry Group, LLC
Person left Inference Foundry Group, LLC Form ADV
Mar 30, 2022
Left Foundry Group, LLC as Trustee Of Jo Ann Roizen, Trustee Of The Mohler / Roizen Revocable Trust
Role ended Inference Foundry Group, LLC Form ADV
Jul 1, 1999
JO Ann Heidi Roizen joined Schedule A of Foundry Group, LLC as Trustee Of Jo Ann Roizen, Trustee Of The Mohler / Roizen Revocable Trust
Person joined Fact Foundry Group, LLC Form ADV
Jul 1, 1999
Joined Mobius Venture Capital, Inc. as Trustee
Role began Fact Mobius Venture Capital, Inc. Form ADV
Jul 1, 1999
Joined Foundry Group, LLC as Trustee Of Jo Ann Roizen, Trustee Of The Mohler / Roizen Revocable Trust
Role began Inference Foundry Group, LLC Form ADV

Record history

2 dated events on the change ledger, latest event first

Person left
2022-03-30source on record
Person joined
1999-07-01source on record

The ledger records every merge, rename and reclassification this record went through and the dated filings observed on it, so the identity on this page can be traced to the records it was built from. The ledger's own sentences name other records, so they show with the names.