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The Abernathy Group II Family Office

Multifamily office listing in New York, New York, United States.

  • SEC-registered
  • Founded 2010
Regulatory AUM
$80 million
Employees
4
Clients
1-10
Founded
2010

A New York family office serving wealthy and affluent families through coordinated wealth management, planning, and family enterprise services.1

Overview

The Abernathy Group II Family Office brings together asset management, asset protection, estate planning, financial planning, accounting and tax coordination, banking, real estate support, and concierge services.2 Its Form ADV also describes medical practice integration counseling, practice management, marketing and valuation, legal asset protection, tax strategies, estate coordination, insurance review, education funding, philanthropy, retirement planning, seminars, and newsletters.3

The firm says its integrated team coordinates tax attorneys, accountants, estate planners, portfolio managers, and other specialists around each family’s overarching wealth strategy. It describes every client family as a distinct Family Enterprise and organizes the family’s assets and affairs in a businesslike structure.4

History

Steven Abernathy founded the firm in 2010.5 His earlier career included portfolio management at Shearson American Express, followed by roles as Special Limited Partner and Director of Executive Services at Cowen & Co.6

Leadership

Steven Abernathy is Founder and Chairman of The Abernathy Group II Family Office.7

Services

In addition to its family-office services, the firm provides separately managed account services, investment management for a private fund, and pension consulting.3 It also says it maintains a medical network connecting families with medical professionals and specialized care resources.8

What the firm offers

  • Investment management
  • Financial planning
  • Tax planning
  • Estate planning
  • Trust and fiduciary
  • Philanthropy
  • Administration and bill pay
  • Risk and insurance
  • Private and alternative investments
  • Retirement planning

Client Focus

The firm serves wealthy and affluent families and structures its work around each family’s broader Family Enterprise. Its family-office program requires a minimum of $3 million in investable assets.19

Approach

The firm says its investment planning uses Quantimental Analysis, Clinical Investing, and PRŪF, which it describes as a data-based approach to value-oriented decision-making.4 It reports an audited investment track record spanning several decades.8

The firm reports that it does not accept commissions for selling financial products and presents its family-office work as a fiduciary service.8

Assets and Minimums

The firm reports a minimum of $3 million in investable assets for its family-office program and charges an annual management fee.9

ABERNATHY GROUP II LLC is listed in the SEC Investment Adviser Public Disclosure system as an SEC-approved investment adviser, effective April 13, 2010. Its identifiers are CRD 152401 and SEC file number 801-71255.10

By the numbers

Regulatory AUM by year$0K$22M$44M$66M$88M2016201720182019202020212022202320252026
Source: SEC Form ADV data (Part 1A, Items 5A, 5D, 5F) via SEC Information About Registered Investment Advisers files and IAPD, CRD 152401. As of .
Regulatory assets under management
YearRegulatory AUMDiscretionaryNon-discretionary
2016$31 million$31 million$0
2017$47 million$47 million$0
2018$39 million$39 million$0
2019$65 million$65 million$0
2020$70 million$70 million$0
2021$64 million$64 million$0
2022$73 million$73 million$0
2023$71 million$71 million$0
2025$67 million$65 million$2 million
2026$80 million$78 million$2 million
Average AUM per client by year$0K$737K$1M$2M$3M20182019202020212022202320252026
Source: SEC Form ADV data (Part 1A, Items 5A, 5D, 5F) via SEC Information About Registered Investment Advisers files and IAPD, CRD 152401. Regulatory AUM divided by the client count reported in Item 5D. Client types reported as fewer than 5 are not counted, so this is approximate. As of .
Average AUM per client
YearAverage AUM per client
2018$2 million
2019$2 million
2020$3 million
2021$2 million
2022$815,018
2023$718,407
2025$1 million
2026$2 million
Clients by type (2026)High net worth individuals19Individuals14Pooled investment vehicles1
Source: SEC Form ADV data (Part 1A, Items 5A, 5D, 5F) via SEC Information About Registered Investment Advisers files and IAPD, CRD 152401. "<5" means the firm reported fewer than 5 clients of that type. As of .
Clients by type
Client typeClients (2026)
Individuals14
High net worth individuals19
Pooled investment vehicles1
Employees by year012342016201720182019202020212022202320252026
Source: SEC Form ADV data (Part 1A, Items 5A, 5D, 5F) via SEC Information About Registered Investment Advisers files and IAPD, CRD 152401. As of .
Employees reported on Form ADV
YearEmployees
20163
20173
20183
20193
20203
20213
20223
20233
20254
20264

Ranks #20 of 22 SEC-registered firms in NY on MultifamilyOffices.com by regulatory AUM.

Source: SEC Form ADV data (Part 1A, Items 5A, 5D, 5F) via SEC Information About Registered Investment Advisers files and IAPD, CRD 152401. Ranking uses only firms profiled on MultifamilyOffices.com. As of .

FAQs

What does The Abernathy Group II Family Office do?

It provides family-office services including asset management, asset protection, estate planning, financial planning, tax coordination, banking, real estate support, concierge services, and related advisory resources.2

Who does the firm serve?

The firm serves wealthy and affluent families and treats each client family as a distinct Family Enterprise.14

What is the minimum to participate in the family-office program?

The firm reports a minimum of $3 million in investable assets and an annual management fee.9

  • LocationMultifamily offices in New York

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  • Network siteEstatePlanner.com

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  • Network siteFamilyOffices.com

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  • GuideHow multifamily offices invest

    This guide explains common ways multifamily offices allocate capital across public markets, private investments, and alternative strategies. It gives families a framework for discussing investment management, risk, liquidity, retirement planning, and the role of private assets in a broader wealth plan.

  • Similar firmsBessemer Trust
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    Profiles of Bessemer Trust, Ehrenkranz Partners, and Family Management Corporation offer additional points of comparison on this site. Reviewing these firms alongside The Abernathy Group II Family Office may help a reader compare service mixes, client focus, and approaches to planning, administration, and family support.

Sources

  1. The Abernathy Group II Family Office, Who We Are
  2. Our Family Office Defined Services
  3. Form ADV Part 2A
  4. Our Story
  5. Our Story
  6. The Abernathy Group II Family Office, Who We Are
  7. The Abernathy Group II Family Office, Who We Are
  8. The Abernathy Group II Family Office
  9. Frequently Asked Questions
  10. SEC Investment Adviser Public Disclosure: ABERNATHY GROUP II LLC

Claim or correct this profile

This profile is a factual summary written in our own words from public sources. It is for information only. It is not an endorsement, rating, ranking or recommendation, and it is not investment advice. MultiFamilyOffices.com is not affiliated with the SEC or with this firm unless stated. Form ADV figures are self-reported by the firm.

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