PUBLIC RESEARCH DOSSIER · ORGANIZATION

Toolbox Foundation

2 published research records · Latest research 2026-09-16

LIVING DOSSIER

About Toolbox Foundation

Published research names Toolbox Foundation in the records below. The findings, citations, and qualifications are collected here as new research is published.

This name has no direct sourced description in the published records yet. Its identity and role should not be inferred from a mention alone.

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Connections

Specific connections are being assembled from the published research. A shared mention is not enough to establish a relationship.

Other names appearing in the same research (12)

These are research overlaps for discovery, not documented relationships. Read the underlying records before drawing conclusions.

People

Denise Dupré · 2 shared records
Mark Nunnelly · 2 shared records
Jason Carroll · 1 shared record
Jay R. Halfon · 1 shared record
Pamela Gilbert · 1 shared record

PACs

American Values Project PAC · 1 shared record
Defend and Protect Idaho · 1 shared record
Progressive Vet PAC · 1 shared record
Unite America PAC · 1 shared record
Way Back PAC · 1 shared record

Organizations

Toolbox · 2 shared records
Toolbox Holdings · 2 shared records

SOURCED RECORD

Research & sources

These dated records accumulate as research is published. Each retains its original status, context, and source references.

Research finding · 2026-09-16Source conflict: Way Back donor 'Toolbox' is an IRS-registered 527; do not equate it with the Nunnelly/Dupré Toolbox family office without proof

Recorded status: COUNTEREVIDENCE / IDENTITY CAUTION: IRS-derived data verify Toolbox EIN 88-3259830 as a distinct Arlington 527 with Halfon/Gilbert officers. Nunnelly/Dupré family-office affiliation is not yet established.

A source-conflict check materially narrows how the Way Back→Toolbox branch should be described. Inside Elections' August 2026 investigation characterizes a Way Back donor called 'Toolbox' as the family foundation of former Bain Capital managing director Mark Nunnelly and Denise Dupré. However, the IRS Form 8872-derived organization actually documented in the IdahoCabal record as a major Way Back funder is Toolbox, EIN 88-3259830, an Arlington, Virginia Section 527 political organization formed in 2022. Its self-reported IRS disclosures identify Jay R. Halfon as president and Pamela Gilbert as treasurer/secretary; ProPublica's aggregation reports roughly $11M all-time contributions, $9.4M expenditures and approximately $1.17M in expenditures to Way Back PAC, making Way Back its largest reported recipient. Its top aggregated contributors are Liam Drury-Wang, Peter Gill Case and Clayton Rockefeller. The page does not identify Nunnelly or Dupré in its displayed leadership/top-contributor data. Separately, reliable institutional biographies identify Mark Nunnelly as chairman of Toolbox Holdings & Foundation, a Boston-based family office/foundation, and identify Denise Dupré as his spouse. These records establish that two publicly described entities use the 'Toolbox' name, but they do not establish that the Arlington 527 and the Nunnelly/Dupré family office/foundation are legally the same entity, affiliated entities, or that Nunnelly/Dupré fund or control the 527. Accordingly, the Inside Elections identification should be treated as a reported claim requiring underlying documentation, not imported as a verified identity. This is especially important because the 527's disclosed legal form, EIN, address and officers are concrete identifiers. Continue using EIN 88-3259830 when referring to the verified Way Back donor unless documentary evidence establishes a relationship to /Foundation.

This dossier reflects published research, including its uncertainties. Inclusion or association alone does not establish wrongdoing. Submit a correction or additional evidence →