Firm profile

J. Mark Nickell & Co..

BRENTWOOD, TNCRD 111635Registration Status: ApprovedEffective since May 26, 2021SEC # 801-121304Latest ADV March 18, 2026

J. Mark Nickell & Co. is an SEC registered investment adviser organized as a corporation with a primary office location in Brentwood, TN.

Assets Under Management
$146M
Employees
3
Offices
1 office
Total Clients
49

Associated firm names

2 names listed
  • J. MARK NICKELL & CO.
  • J. MARK NICKELL, P.C.

Leadership

1 roles identified
CCOJoseph M. Nickell

Advisory services offered

3 types reported
Financial Planning Services
Other advisory services
Portfolio management for individuals and small businesses

Fee models offered

3 types reported
Asset based fees
Fixed fees
Hourly charges

Offices & Contact

Primary office

BRENTWOOD, Tennessee, United States

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Primary office regionOther reported regions

Shading shows states and countries with reported offices. Cities are listed below; shading does not indicate service coverage.

Tennessee

BRENTWOODPrimary office

1 office records listed · 1 total offices reported. Counts can use different reporting dates. SEC filers may list only their largest 25 additional offices.

Contact and digital presence

ADV profile links

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$146Mas of March 18, 2026
Discretionary94.3%
$138M
94% of total RAUM94.3%
Non-discretionary5.7%
$8M
6% of total RAUM5.7%
Regulatory assets under management are split between discretionary and non-discretionary assets.

Client Coverage Demographics

Top client segmentHNWI represent 87.8% of total clients.
Top client categories% of clientsClients
1
HNWI
87.8%
43
2
Individuals
12.2%
6
Categories with <5 clients
2 FAMILY INVESTMENT LLC'S<5 clients
Corporations or other businesses not listed above<5 clients

Assets under management Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total AUM$146M
Total Accounts174
10Y AUM Change+$35M (+31.7%)

Private Funds

Private funds reported by J. Mark Nickell & Co..

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Employee Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total Employees3
Clients per Employee16:1
10Y Employee Change+1 (+50.0%)

Historical AUM and employee figures reflect available SEC Form ADV filings under this CRD. Filing gaps may reflect registration status changes, dormant periods, state registration periods, firm restructuring, or other reporting changes. Rialytix does not interpolate missing periods.

This firm has a multi year gap in available SEC ADV filing history between 2012 and 2021. Charts show the most recent available filing segment under this CRD.


Ownership

Reported direct and indirect ownership ranges

Each range applies to a separate reported relationship and should not be added together.

Reported ownership ranges

Highlighted bands show the percentage range reported in Form ADV.

0%25%50%75%100%
JOSEPH MARK NICKELLDirect owner · Schedule AInterest in J. MARK NICKELL & CO.
50% to < 75%
MARGARET ROSE DOVERDirect owner · Schedule AInterest in J. MARK NICKELL & CO.
10% to < 25%
Thomas W NickellDirect owner · Schedule AInterest in J. MARK NICKELL & CO.
10% to < 25%

Bars represent the reported range at that individual ownership step, not an estimated percentage of the advisory firm. Indirect relationships may refer to intermediate entities rather than directly to J. Mark Nickell & Co...

No indirect ownership information reported in the source’s Schedule B.

Reported ownership and control details

Form ADV · Filing date 2026-03-18 · Schedules A and B

3 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1JOSEPH MARK NICKELLPRESIDENT/CHIEF COMPLIANCE OFFICERIndividualJ. MARK NICKELL & CO.50% to less than 75%Code DYesPRESIDENT/CHIEF COMPLIANCE OFFICER04/1994Schedule APDF page 20
2MARGARET ROSE DOVERSENIOR CLIENT ADVISORIndividualJ. MARK NICKELL & CO.10% to less than 25%Code BYesSENIOR CLIENT ADVISOR01/2026Schedule APDF page 20
3Thomas W NickellOPERATIONS DIRECTORIndividualJ. MARK NICKELL & CO.10% to less than 25%Code BYesOPERATIONS DIRECTOR01/2026Schedule APDF page 20

Less than 5% may include zero. Code F identifies a role without specifying a percentage. Reported interests may overlap and may not include every owner. Total indirect ownership is not calculated.

Compliance & Disclosures

Filing dated 3/18/2026 12:31:32 PM

Responses were selected by the RIA in its filing. Questions are shortened for readability; “you” refers to the reporting firm, and some questions also cover advisory affiliates.

RIA or supervised-person involvementThe RIA reported that none of the events below involve the firm or its supervised persons.RIA responseNo
AFelonies2 No

In the past ten years, have you or any advisory affiliate:

  • A1Been convicted of or pleaded guilty or no contest to a felony?No
  • A2Been charged with a felony?No
BMisdemeanors2 No

In the past ten years, have you or any advisory affiliate:

  • B1Been convicted of or pleaded guilty or no contest to a misdemeanor involving investments, an investment-related business, fraud, false statements or omissions, wrongful taking of property, bribery, perjury, forgery, counterfeiting, or extortion?No
  • B2Been charged with a misdemeanor of the kind listed above?No
CSEC or CFTC actions5 No

Has the SEC or CFTC ever:

  • C1Found you or an advisory affiliate made a false statement or omission?No
  • C2Found you or an advisory affiliate violated SEC or CFTC regulations or statutes?No
  • C3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • C4Entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • C5Imposed a civil money penalty on you or an advisory affiliate, or ordered you or an advisory affiliate to cease and desist from any activity?No
DOther regulatory actions5 No

Has any other federal regulatory agency, state regulatory agency, or foreign financial regulatory authority ever:

  • D1Found you or an advisory affiliate made a false statement or omission, or was dishonest, unfair, or unethical?No
  • D2Found you or an advisory affiliate violated investment-related regulations or statutes?No
  • D3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • D4In the past ten years, entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • D5Denied, suspended, or revoked your or an advisory affiliate’s registration or license, or otherwise prevented association with an investment-related business or restricted activities?No
ESelf-regulatory organization actions4 No

Has a self-regulatory organization or commodities exchange ever:

  • E1Found you or an advisory affiliate made a false statement or omission?No
  • E2Found you or an advisory affiliate violated its rules, other than a violation designated as a minor rule violation under an SEC-approved plan?No
  • E3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • E4Disciplined you or an advisory affiliate by expulsion, suspension, barring association with other members, or otherwise restricting activities?No
FProfessional authorizations1 No
  • FHas an authorization to act as an attorney, accountant, or federal contractor granted to you or an advisory affiliate ever been revoked or suspended?No
GPending regulatory proceedings1 No
  • GAre you or any advisory affiliate now the subject of a regulatory proceeding that could result in a “Yes” answer to any part of C, D, or E?No
HCivil judicial actions and proceedings4 No

(1) Court actions

Has a domestic or foreign court:

  • H(1)(a)In the past ten years, enjoined you or an advisory affiliate in connection with investment-related activity?No
  • H(1)(b)Found that you or an advisory affiliate violated investment-related statutes or regulations?No
  • H(1)(c)Dismissed, pursuant to a settlement agreement, an investment-related civil action brought against you or an advisory affiliate by a state or foreign financial regulatory authority?No

(2) Pending civil proceedings

  • H(2)Are you or any advisory affiliate now the subject of a civil proceeding that could result in a “Yes” answer to any part of H(1)?No

* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.