Current source roster
Tulsa Authority for Economic Opportunity / PartnerTulsa
Trustee and committee chair
Current official roster
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
People / Government & civic life
J. Terrell Siegfried
PartnerTulsa trustee and economic incentives committee chair
Corporate law, public development oversight and educational institutions.
J. Terrell Siegfried chairs the Tulsa Authority for Economic Opportunity’s Economic Incentives and Strategy Committee. He is NORDAM’s deputy general counsel and corporate secretary, remains Of Counsel at Hall Estill and serves on the Aeronautical Repair Station Association board.
Education and the progression into aerospace
Hall Estill dates his University of Tulsa management degree to 2002, his Notre Dame law degree and Oklahoma admission to 2007, and his association with the firm to 2007. ARSA’s 2021 account says he joined NORDAM as senior legal counsel in 2012 and became assistant general counsel and corporate secretary in 2016. The employer now uses the title deputy general counsel. These dated accounts describe a progression from outside legal practice to in-house work; the exact date of the latest title change is not supplied. The University of Tulsa also identifies him as a former football captain, connecting his later educational philanthropy with his own undergraduate experience.
Career & public service
- 2002
Tulsa business degree
Hall Estill dates his management degree to this year.
- 2007
Law degree and admission
Notre Dame JD, Oklahoma admission and start of Hall Estill association.
- 2012
Move into NORDAM
Senior legal counsel; continuing Of Counsel relationship with Hall Estill.
- 2013
Scholarship endowment
TU credits him with co-establishing the spirit-squad scholarship endowment.
- 2016
Corporate legal office
ARSA dates the assistant general counsel and corporate secretary roles to this year.
- 2017
ARSA board
First joined the association board, according to its 2021 account.
- October 2021
Elected association president
Elected October 22 for the 2022 leadership year.
- May 2023
Tulsa priorities
PartnerTulsa publishes his interview as trustee and committee chair.
- Current employer roster
Deputy general counsel
NORDAM uses this title; exact promotion date not stated.
People, institutions and the relationships between them
Following the connections
Each step below represents a documented relationship. Dates and roles belong to the individual links; a path can span different periods.
personJ. Terrell Siegfried
authorityTulsa Authority for Economic Opportunity / PartnerTulsa
Collective trusteeship and committee leadership; individual transaction powers require their own records.
personJ. Terrell Siegfried
businessNORDAM
associationAeronautical Repair Station Association
Current employment and a historically documented company association membership; not proof of regulatory control.
One 2019 individual contribution to the 2020 mayoral committee; not evidence of a quid pro quo.
Documented relationships
11 documented relationships · Historical and current roles remain distinct.
Current source roster
NORDAM
Deputy general counsel and corporate secretary
Current employer roster; employment began2012, current title start unknown
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
Current source roster
Hall Estill
Of Counsel
2012 transition; current firm roster
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
Current source roster
Aeronautical Repair Station Association
Director
First joined2017; current roster confirms service without proving uninterrupted tenure
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
Historical record
Aeronautical Repair Station Association
Elected president
October22,2021 election for2022 leadership year; no longer current president
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
Historical record
NORDAM
Association member · Aeronautical Repair Station Association
2021 account describes membership since1984
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
Current source roster
Monte Cassino School
Board member
Current school roster; start date not supplied
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
Current source roster
GO for Catholic Schools
Advisory board member
Current advisory roster, distinct from governing directors
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
Current source roster
University of Tulsa
President’s Council and law-school advisory service
Current employer biography
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
Historical record
Friends of G.T. Bynum, 2020
Individual campaign contribution
June12,2019; report filedJuly25,2019, p2
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
$1,000 · One individual contribution reported for April1–June30,2019; filedJuly25,2019, p2. Period and aggregate columns overlap, not additional receipts.
Historical record
Friends of G.T. Bynum, 2020
Mayoral campaign committee · G.T. Bynum
2020 candidate committee named in2019 filing
Only the named relationship is established; no ownership, compensation or transaction-specific influence inferred.
Interpretation
What the institutional connections establish
The documented pattern connects public development oversight with corporate law, aerospace-industry representation and education. The roles explain several forums in which Siegfried participates, but they give him different responsibilities and do not establish that the institutions act as one organization. Assessing a potential conflict in a particular public transaction would require that transaction’s disclosures, recusals and decision record. The current trustee and association rosters are the best starting points for officeholding; dated interviews explain stated priorities, and the campaign filing supports a specific historical payment. None substitutes for evidence about a particular incentive decision.
Corporate counsel and a continuing law-firm connection
NORDAM’s current leadership page identifies Siegfried as deputy general counsel and corporate secretary. A May 2023 PartnerTulsa interview described his work as managing legal activities and corporate governance and helping executive leadership comply with state, federal and international requirements. His position connects him to the company’s internal legal and governance work; it does not by itself establish an ownership share. Hall Estill separately lists him as Of Counsel. Its biography dates that arrangement to 2012, when he moved into NORDAM’s senior legal counsel role after practicing corporate, tax and estate-planning law.
Industry association leadership
The Aeronautical Repair Station Association says Siegfried joined its board in 2017 and was elected president on October 22, 2021 for the 2022 leadership year. A Tulsa World report on the election was excerpted in the association’s November 17 dispatch. ARSA’s present governance roster lists him as a director, while its presidency is held by someone else. The association represents aviation-maintenance interests, including firms operating in a regulated international industry. His board service supplies a connection between NORDAM’s legal work and an industry forum; association office is distinct from a government regulatory appointment. The 2021 announcement also identifies NORDAM as a member since ARSA’s 1984 founding, placing his service within an older institutional relationship.
Development priorities in his own words
In the 2023 PartnerTulsa interview, Siegfried pointed to the redevelopment of Morton Hospital and Kirkpatrick Heights and singled out the Fair Oaks Industrial District for its potential to attract employers and well-paid jobs. He framed trusteeship as a way to give back to Tulsa and described a city with economic opportunity and a good quality of life as his goal. These are attributed priorities from a dated interview. They establish his expressed interests, rather than a quantified outcome, a recorded vote on a particular agreement or proof that he alone caused a project to proceed.
School governance, university support and STEM philanthropy
Monte Cassino School currently names Siegfried on its board. GO for Catholic Schools lists him on its advisory board, separately from its governing directors. GO describes itself as the charitable organization managing a Catholic-school tax-credit scholarship fund. Those are distinct institutional relationships: a school board seat and an advisory role in scholarship support. NORDAM also lists his service on the University of Tulsa President’s Council and the law school’s Dean’s Advisory Board. TU credits him with co-establishing a 2013 spirit-squad scholarship endowment; its donor account supplies no dollar amount. These records establish service and support without measuring control over admissions, university spending or scholarship selection.
Flight Night and the organization running the event
NORDAM describes Siegfried as a founding Flight Night board member. The event’s institutional setting has changed: Tulsa Regional STEM Alliance minutes from March 1, 2022 discussed taking responsibility for planning and carrying out Flight Night, with a memorandum of understanding then being developed. The current event site identifies the alliance as its operator and calls Flight Night its signature fundraiser for STEM education. The founding-board connection and the present event operator should therefore be read separately. Neither the employer biography nor the event history establishes that Siegfried personally directs the alliance or determines each educational grant.
One documented campaign contribution
Friends of G.T. Bynum, 2020 reported an individual contribution of $1,000 from Terrell Siegfried on June 12, 2019. The mayoral campaign’s report covers April 1–June 30, 2019 and was filed July 25; its occupation/employer entry identifies NORDAM’s assistant general counsel, supporting the identity match. The amount is a historical campaign receipt, not personal income or a company donation. It appears in transaction, reporting-period and aggregate columns, which must not be added together. This filing snapshot does not establish lifetime giving, a later campaign balance, an endorsement or a connection between the contribution and any public decision.
Check the record
Sources & corrections
Research checked 2026-11-01. Roles and financial figures retain their source dates. Sections appear only when supported material is available; an omitted section is not a finding that no such relationship exists.
- PartnerTulsa · Board of Trustees ↗
Primary source · Checked 2026-09-26
- NORDAM leadership: J. Terrell Siegfried ↗
Primary institutional record · Checked 2026-11-01
Named subsection: deputy general counsel and corporate secretary, TU advisory roles and founding Flight Night board service. Adjacent relatives’ roles excluded.
- Hall Estill: J. Terrell Siegfried ↗
Primary institutional record · Checked 2026-11-01
Education/admissions and career paragraphs; current Of Counsel heading. Older NORDAM title and ARSA presidency not treated as current.
- ARSA: NORDAM’s Siegfried becomes president ↗
Primary institutional record · Source date 2021-11-03 · Checked 2026-11-01
October22 election for2022 presidency; board entry2017; NORDAM2012 and2016 roles.
- ARSA governance ↗
Primary institutional record · Checked 2026-11-01
Current directors list; Siegfried director, another individual president.
- PartnerTulsa: Meet our trustee Terrell Siegfried ↗
Primary institutional record · Source date 2023-05-05 · Checked 2026-11-01
Institutional interview; legal duties and development priorities are attributed statements.
- Monte Cassino School board leadership ↗
Primary institutional record · Checked 2026-11-01
Named current board member; no exact start date established.
- GO for Catholic Schools: Who we are ↗
Primary institutional record · Checked 2026-11-01
Advisory board, separate from directors; charitable organization and scholarship fund descriptions.
- University of Tulsa: Siegfried donor profile ↗
Primary institutional record · Checked 2026-11-01
2013 spirit-squad scholarship endowment co-established; no amount stated. Family relationship not added.
- Tulsa Regional STEM Alliance board minutes ↗
Primary institutional record · Source date 2022-03-01 · Checked 2026-11-01
Flight Night transition discussion; MOU then in process, not proof of completed transfer on that date.
- Flight Night: The Cause ↗
Primary institutional record · Checked 2026-11-01
Current event operated by Tulsa Regional STEM Alliance; event and historical nonprofit board not merged.
- Friends of G.T. Bynum, 2020: second-quarter2019 report ↗
Primary institutional record · Source date 2019-07-25 · Checked 2026-11-01
pp1–2 visually inspected: April1–June30 reporting period; June12 individual contribution1000USD. Three1000 columns are amount, period and aggregate, not three donations. Unchecked amended box.
- ARSA Dispatch: Tulsa World report on Siegfried election ↗
Independent reporting excerpt · Source date 2021-11-17 · Checked 2026-11-01
Tulsa World headline and short syndicated excerpt; original article inaccessible. Supports reported election only, not independent verification of all biography claims.