This entity has not been resolved onto another DFX graph by a shared identifier. A name match elsewhere would be a candidate, never an identity, and none is recorded.

Family served

Martin family

Wealth origin

Wealth ties to founder Andy Martin's three-decade career as a FINRA-licensed broker/dealer principal before he built the holding company's advisory, energy and real estate ventures

Operating company origin

Andy Martin formed his own FINRA broker/dealer, Amerifund Capital Securities, LLC, as part of a wave of entities built in late 2002

Invests directly

The Challenge Group Fund makes direct equity and debt investments in early-stage and growth-focused companies

Asset classes

The fund vehicle deploys both equity and debt into portfolio companies

Sectors

Advisory and portfolio relationships concentrate in energy, financial services, media and industrial companies, including Blue Dolphin Energy, Remnant Oil Company and Texas Citizens Bank

Investments

2

Direct investments

2

People

5

Decision makers

3derived

Also named here, with no published line of their own (reach them through the firm): Jacob Swain (Executive), Millicent Martin (Managing Director, Accounting), Andrew J. Martin (Managing Director, Real Estate), Andy Martin (Founder and Managing Partner).

Who to call is the organisation, the person's role and the line they published themselves: a business phone, office address, website or profile link from Form ADV, Form 13F or their own website, with that source named on every value. The counts above are what a reveal returns; a personal email is rarely published, so most reveals are the firm's line. Never data bought from a provider, never anything personal. Reveals by plan

Graph

Family Offices

Canonical id

dfx:fo:a6616f80-558d-488f-a9bc-0764c64b4751

First observed

Sep 14, 2026

Last observed

Sep 21, 2026 2 h ago

Source families

Federal regulator filings, DFX's own graph

3 registered feeds stand behind this record; each fact above carries its own dates and, where the publisher serves one, its document.

Resolution

Identity across graphs by shared identifier (CRD, CIK, EIN, ADV fund id, individual CRD) or citation; a name match is shown as a candidate and never merged.