David J. Blumberg

Founder and Managing Partnerat Blumberg Capital, L.L.C.· CA

As of Oct 30, 2026 · this person's identity; each section below carries its own date

1 current roles · 2 investmentsAll 3

Current roles: 1
Investments: 2
Board seats: 2

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Investments Board seats

As of Oct 30, 2026 · this person's identity; each section below carries its own date

Is this you? Correct your profile

4 additional roles and seats

Every relationship, signal and contact on this record, with the source on each.

What matters now

2 boards
seats on record
Sits on 2 boards on record, the latest SupplyPike.
Board seats show where this partner holds governance, not only a cheque.
InferenceForm D directors and board-seat attributionsFor Founders, co-investorsBoard seats →

Relationship network

10 connected entities2 observed investment recordsinvestment records 2009 to 2022

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.

Some relationships on this record are counted rather than named here. They open with the full profile.

Click any name or line for the investment records and sources behind it. Line weight is investment records together; dashed lines are inferred.

Reading the network

Organization
Company
Fund or vehicle

›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.

Ask DFX about this network

Which companies and boards is David J. Blumberg connected to?

How am I connected? Published routes

Name your firm, a company or a person, and DFX finds the published routes to David J. Blumberg: 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.

Public record only. For routes through people you know, see Who can introduce you.

See how you connect to David J. Blumberg

Drawing the relationship network…

Do you know this person?

From your own network, read by Network Intelligence. Only you see this; nothing here is shared with anyone else.

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Career and professional network

DFX holds 3 roles (1 confirmed current, 0 listed but not re-read) for this person.

The organisations, deals and people behind them are shown to readers who can see this record's names.

Documented career timeline

0 entries

No SEC officer change or named transaction is linked to this record yet. A filing is linked only when its employer matches one on this record, never on a name alone.

Influence, as documented: four separate measures

Each measure is a count of rows you can open, with its sources. They are never added together and never ranked. A relationship or a role is evidence of a connection, not of wrongdoing.

Documented decision authority

Officer and director appointments in the registrant's own 8-K, board seats, and executive or managing roles a filing or the firm's record names.

BLUMBERG CAPITAL OPPORTUNITY FUND I, L.P.: Board seat (Director) venture capital record
BLUMBERG CAPITAL OPPORTUNITY FUND (EK), L.P.: Board seat (Director) venture capital record
BLUMBERG CAPITAL OPPORTUNITY FUND (TR), L.P.: Board seat (Director) venture capital record

5 more named for members.

What it cannot see: Investment committee seats and votes in pension minutes are rarely documented, so they are not counted.

Roles on this record

Transaction involvement

Deals whose announcement names this person in a role.

None documented on this record yet.

What it cannot see: Bankers, lawyers and lender deal teams are rarely named in announcements, and capital per person is almost never attributable.

Transactions naming this person

Network position, documented lines only

8 institutions and 0 people on documented lines; 2 derived lines (colleague overlap, co-investment) counted apart, not added. A count, not a rank.

BLUMBERG CAPITAL OPPORTUNITY FUND I, L.P.: Director venture capital record
BLUMBERG CAPITAL OPPORTUNITY FUND (EK), L.P.: Director venture capital record
BLUMBERG CAPITAL OPPORTUNITY FUND (TR), L.P.: Director venture capital record

5 more named for members.

What it cannot see: Duplicate records split one person's lines across two or more profiles until they are merged.

Relationship map

Labelled inferenceDFX inference

Patterns DFX reads from the rows above. They are DFX's reading, not a filing's statement, and imply nothing about conduct.

None documented on this record yet.

What it cannot see: Needs at least two documented rows to read a pattern; one row is never a pattern.

Roles

1 current

Blumberg Capital, L.L.C. Founder and Managing Partner
? to present · “team page: David J. Blumberg / Founder and Managing Partner”
Fact Firm website

Investments credited as a firm's partner

Company	Round	Investor	Attribution	Date	Source
SupplyPike	board only	Blumberg Capital, L.L.C.	strongly supported · board	Aug 2, 2022	Inference sec.gov
CaseStack	board only	Blumberg Capital, L.L.C.	strongly supported · board	Oct 14, 2009	Inference sec.gov

Board seats and vehicles

2 boards, 7 vehicles

CaseStack Director Inference
SupplyPike Director Inference
Blumberg Capital Opportunity Fund (cr), L.P. Director Jun 30, 2014
Blumberg Capital Opportunity Fund (fb), L.P. Director Aug 9, 2017
Blumberg Capital Opportunity Fund (yp), L.P. Director Nov 21, 2017

Timeline

2 dated entries: events, attributed deals, own investments, board seats and role changes

Aug 2, 2022
Board seat at SupplyPike (Blumberg Capital, L.L.C.)
Board seat Inference SupplyPike Form D
Oct 14, 2009
Board seat at CaseStack (Blumberg Capital, L.L.C.)
Board seat Inference CaseStack Form D