DFX Intelligence

RIA Intelligence

Registered investment advisers, the advisors registered through them, the capital they report, the private vehicles they run and the people who own them, as a graph with a filing date behind every number. RAUM is what the adviser filed, a move is two registration dates, and a class is a rule you can read.

SEC-registered adviser

Aon Investments USA Inc.

Institutional managerChicago, IllinoisCRD 105596SEC 801-17219website IAPD

Latest filing Mar 25, 2026

First filing on the tape Mar 30, 2012 · 50 filings

SEC status approved since May 21, 1982

RAUM

$151B

reported, Item 5.F

Discretionary

78%

of RAUM

Private clients

0.0%

$0 individuals and HNW

Advisors

registered through the firm on IAPD

RAUM per advisor

n/a

derived; firm RAUM over IAPD count

Employees

255

248 advisory (5.B.1)

Offices

beyond the principal office

Private funds

reported on Schedule D

History

50 filings and snapshots on the tape

RAUM$151B as of Mar 25, 2026

Mar 30, 2012$15B then

HNW client RAUM$0 as of Mar 25, 2026

Mar 28, 2018$0 then

State-registered IARs (5.B.3)0 as of Mar 25, 2026

Apr 1, 20130 then

Employees (5.A)255 as of Mar 25, 2026

Apr 1, 2013274 then

Private funds8 as of Mar 25, 2026

Mar 30, 201211 then

RAUM +11% over the last fiscal year+6.8% a year over threeIARs 0 to 0offices 12 to 14

Practice profile

derived from the filing of Mar 25, 2026; every figure names its basis

Archetypes, each a printed rule

Institutional asset manager · institutional share (pensions, government, insurance, corporations, charities, banks, other advisers) at least 60 percent and private-client share under 20 percent
OCIO / institutional advisory · selection of other advisers (5.G.7) and institutional share at least 50 percent
Retirement plan adviser · pension consulting activity (Item 5.G.6) and pension plans at least 25 percent of RAUM or at least 25 pension-plan clients

RAUM per advisor: unknownderivedRAUM over IAPD advisors; not a book size
Clients per advisor: unknownderivedindividual and HNW clients (5.D) over advisors
Average HNW client: unknownderivedHNW RAUM over HNW clients
Average account: $503MderivedRAUM over accounts (5.F.2.f)
Discretionary: 78%derivedof RAUM
Institutional: 75%derivedpensions, charities, corporations, government, insurance, banks, other advisers
Employees per advisor: unknownderivedItem 5.A over advisors
Advisors per office: unknownderived15 offices incl. principal (1.F.5)
RAUM growth, one year: +11%derivedbetween the last two annual amendments
Advisor growth, one year: unknownderivedItem 5.B.3 between annual amendments
Client growth, one year: unknownderived
Compensation: percentage of assets, hourly, fixed feesreportedItem 5.E
Advisory activities: portfolio management for businesses and institutions, portfolio management for pooled vehicles, portfolio management for investment companies, pension consulting, selection of other advisers, educational seminarsreportedItem 5.G
Custody: $151B, 163 clientsreportedItem 9.A
Ownership: no PE, bank or public-company owner found on Schedule Aderived
Advisor book size: not public; not estimatedreported

Also answered yes on Form ADV

buys or sells securities as principal to or from clients (8.A.2)
has discretionary authority over which securities are bought or sold (8.C.1)
receives research or other products from a broker-dealer, soft dollars (8.E)
has custody of client cash or bank accounts (9.A.1.a)
has custody of client securities (9.A.1.b)
a related person has custody of client cash (9.B.1.a)
a related person has custody of client securities (9.B.1.b)
an independent public accountant performs a surprise examination (9.C.1)
marketing includes hypothetical performance (5.L.3)

Where the RAUM sits

Form ADV Item 5.D, latest filing

Pension and profit-sharing plans$113B76%
Pooled investment vehicles$34B23%
Charitable organizations$1.2B0.8%
State and municipal entities$127M0.1%

Individual clients: n/areported
HNW clients: n/areported
Pension plan clients: 272reported
Charitable clients: 8reported
Accounts: 300reported
Financial planning clients: 0reported
Wrap fee programs: noreported
Custody of client assets: $151B for 163 clientsreported
Compensation: % of AUM, fixed, hourlyreported
Class basis: private_client_share=0.0 fund_share=0.23 institutional_share=0.75 related_bd=true related_bank=true bd_reps=19.0derived

Advisors registered through the firm

0 on IAPD today, longest tenure first

No representative is registered through this CRD on IAPD.

Advisor movement

Left, latest

Christopher Aristotle Vassilopoulos to Johnson Investment Counsel, Inc.
May 28, 2025 · Other

Joined, latest

Christopher Aristotle Vassilopoulos from Wellesley Asset Management, Inc.
Nov 14, 2017 · Other

Every departure Every arrival

Private funds

27 reported on Schedule D 7.B.(1)

Fund	Type	Gross assets	Owners	First reported
Aon Alternatives Fund Spc - Aon Return Enhancing Alternatives Portfolio Sp	Hedge Fund	$703M	38	Mar 29, 2019
Global Equity Fund, A Series Of Aon Hewitt Institutional Funds, LLCno longer reported	Other Private Fund	$488M	2	Mar 30, 2017
Aon Alternatives Fund Spc - Aon Opportunistic Credit Portfolio Sp	Hedge Fund	$347M	32	Apr 29, 2021
Aon Private Credit Opportunities Fund , LLC	Other Private Fund	$226M	15	Mar 28, 2018
Aon Private Credit Opportunities Fund II, LP	Other Private Fund	$210M	43	Mar 30, 2023
Khf Fund, LP	Other Private Fund	$175M	2	Mar 30, 2021
Aon Diversifying Alternatives Portfolio Ltd.	Hedge Fund	$172M	19	Mar 31, 2014
Aon Hewitt Cta 1 Master Fund Ltdno longer reported	Other Private Fund	$75.6M	1	Mar 30, 2017
U.S. Equity Fund, A Series Of Aon Hewitt Institutional Funds, LLCno longer reported	Other Private Fund	$31.7M	2	Mar 30, 2017
Non-US Equity Fund, A Series Of Aon Hewitt Institutional Funds, LLCno longer reported	Other Private Fund	$13.3M	2	Mar 30, 2016
Aon Hewitt Group Trust Non-U.S. Equity Fundno longer reported	Other Private Fund	$12.3M	0	Mar 30, 2012
Aon Hewitt Group Trust Global Equity Fundno longer reported	Other Private Fund	$12.0M	0	Apr 1, 2013
Aon Hewitt Group Trust Multi-Asset Credit Fundno longer reported	Other Private Fund	$6.1M	0	Mar 30, 2012
Aon Hewitt Group Trust Global Real Estate Fundno longer reported	Real Estate Fund	$1.1M	0	Mar 30, 2012
Aon Hewitt Group Trust Long Credit Bond Fundno longer reported	Other Private Fund	$573,761	0	Mar 30, 2012
Aon Hewitt Group Trust Intermediate Credit Bond Fundno longer reported	Other Private Fund	$496,762	0	Mar 30, 2012
Aon Hewitt Group Trust Small & Mid Cap Equity Fundno longer reported	Other Private Fund	$273,985	0	Mar 30, 2012
Aon Hewitt Group Trust Large Cap Equity Fundno longer reported	Other Private Fund	$226,608	0	Mar 30, 2012
Aon Hewitt Group Trust Non-U.S. Equity Index Fundno longer reported	Other Private Fund	$147,185	0	Mar 30, 2012
Aon Hewitt Group Trust U.S. Intermediate Government Bond Index Fundno longer reported	Other Private Fund	$96,277	0	Mar 28, 2018
Aon Hewitt Group Trust Mid Duration Long Credit Fundno longer reported	Other Private Fund	$93,931	0	Mar 27, 2015
Aon Hewitt Group Trust Large Cap Equity Index Fundno longer reported	Other Private Fund	$89,744	0	Mar 30, 2012
Aon Hewitt Group Trust U.S. Long Government Bond Index Fundno longer reported	Other Private Fund	$88,509	0	Mar 28, 2018
Aon Hewitt Group Trust 20+ U.S.T. Strips Fundno longer reported	Other Private Fund	$59,115	0	Mar 30, 2012
Aon Hewitt Group Trust Small Cap Equity Index Fundno longer reported	Other Private Fund	$28,302	0	Mar 30, 2012
Core Plus Bond Fund, A Series Of Aon Institutional Funds, LLC	Other Private Fund	$0	0	Mar 30, 2016
Credit Opportunities Fund, A Series Of Aon Institutional Funds, LLC	Other Private Fund	$0	0	Mar 30, 2016

Owners and control persons

Schedule A and B, latest filing

Kenneth Russell Ivinjack · Global Chief Investment Officercontrol
since 02/2020 · owns less than 5%
Noah Ari Jacobs · Global Head Of Investmentscontrol
since 11/2023 · owns less than 5%
Williams Nicole Robertson · Head Of Investment Operations - North Americacontrol
since 10/2024 · owns less than 5%
Jonathan David Testore · Chief Operating Officercontrol
since 08/2008 · owns less than 5%
Richard Bryan Ward · Head Of U.S. Investmentscontrol
since 03/2024 · owns less than 5%
Bradley Matthew Wallace · Chief Compliance Officer
since 04/2021 · owns less than 5%

Entity owners

Aon Consulting, Inc. · Owner
direct · owns 75% or more
Aon Corporation · Owner
indirect · owns 75% or more of Aon Group, Inc. · public reporting company
Aon Global Holdings Plc · Owner
indirect · owns 75% or more of Aon Corporation · public reporting company
Aon Global Limited · Owner
indirect · owns 75% or more of Aon Global Holdings Plc · public reporting company
Aon Group, Inc. · Owner
indirect · owns 75% or more of Aon Consulting, Inc. · public reporting company
Aon Plc · Owner
indirect · owns 75% or more of Randolph Finance Unlimited Company · public reporting company
Randolph Finance Unlimited Company · Owner
indirect · owns 75% or more of Aon Global Limited · public reporting company

Related persons

Schedule D 7.A

Aon Advantage Funds LLC
investment advisernRAUM $149M
Aon Hewitt Inc.
LP sponsorn
Aon Investments Canada Inc.
investment advisern
Aon Investments Limited
investment advisern
Aon Ip Advantage Fund Gp LLC
pooled vehicle sponsorn
Aon Securities LLC
broker-dealerinvestment adviserbankn
Aon Solutions Ireland Limited
investment advisern
Aon Solutions Uk Limited
investment advisern
Aon Trust Company LLC
n
Marilla Investment Management Ltd.
investment advisern
Townsend Group Europe Limited
investment advisern
Townsend Holdings LLC
investment advisernRAUM $20B

Advisers that list Aon Investments USA Inc. as a related person

Office movement

IAPD branch city; joins and departures in 12 months

Office	Advisors	Joined	Left	Teams out	Forming
Chicago, Il · principal	0	0	0

Offices

Schedule D 1.F, the 25 largest

Atlanta, GA54 employees
Norwalk, CT22 employees
Lincolnshire, IL19 employees
New York, NY6 employees
Radnor, PA5 employees
San Francisco, CA3 employees
Bloomington, MN2 employees
Burlington, MA2 employees
Seattle, WA2 employees
Raleigh, NC2 employees
St Louis, MO1 employees
Boston, MA1 employees

What changed

consecutive filings, newest first

Accounts · 304 to 300
Dec 15, 2025 to Mar 25, 2026
Advisory employees · 256 to 248
Dec 15, 2025 to Mar 25, 2026
BD registered reps · 21 to 19
Dec 15, 2025 to Mar 25, 2026
Charity clients · 9 to 8
Dec 15, 2025 to Mar 25, 2026
Corporate clients · 148 to 139
Dec 15, 2025 to Mar 25, 2026
Individual clients · 0.0 to unset
Dec 15, 2025 to Mar 25, 2026
Pension plan clients · 286 to 272
Dec 15, 2025 to Mar 25, 2026
Pooled vehicle clients · 29 to 31
Dec 15, 2025 to Mar 25, 2026
Assets in custody · $136B to $151B
Dec 15, 2025 to Mar 25, 2026
Employees · 263 to 255
Dec 15, 2025 to Mar 25, 2026
Other offices · 12 to 14
Dec 15, 2025 to Mar 25, 2026
Discretionary RAUM · $104B to $118B
Dec 15, 2025 to Mar 25, 2026
Non-discretionary RAUM · $32B to $33B
Dec 15, 2025 to Mar 25, 2026
Pension RAUM · $98B to $113B
Dec 15, 2025 to Mar 25, 2026
Pooled vehicle RAUM · $34B to $34B
Dec 15, 2025 to Mar 25, 2026
RAUM · $136B to $151B
Dec 15, 2025 to Mar 25, 2026
Private funds · 6 to 8
Sep 2, 2025 to Dec 15, 2025
Financial planning clients · 0 to 0
Mar 27, 2025 to Sep 2, 2025
Accounts · 286 to 304
Oct 31, 2024 to Mar 27, 2025
Advisory employees · 265 to 256
Oct 31, 2024 to Mar 27, 2025
Charity clients · 8 to 9
Oct 31, 2024 to Mar 27, 2025
Corporate clients · 0 to 148
Oct 31, 2024 to Mar 27, 2025
HNW clients · 2.0 to unset
Oct 31, 2024 to Mar 27, 2025
Pension plan clients · 275 to 286
Oct 31, 2024 to Mar 27, 2025
Pooled vehicle clients · 42 to 29
Oct 31, 2024 to Mar 27, 2025
Assets in custody · $118B to $136B
Oct 31, 2024 to Mar 27, 2025
Employees · 286 to 263
Oct 31, 2024 to Mar 27, 2025
Private funds · 8 to 6
Oct 31, 2024 to Mar 27, 2025
Discretionary RAUM · $118B to $104B
Oct 31, 2024 to Mar 27, 2025
Non-discretionary RAUM · $4.5B to $32B
Oct 31, 2024 to Mar 27, 2025
Pension RAUM · $79B to $98B
Oct 31, 2024 to Mar 27, 2025
Pooled vehicle RAUM · $36B to $34B
Oct 31, 2024 to Mar 27, 2025
RAUM · $123B to $136B
Oct 31, 2024 to Mar 27, 2025
Accounts · 305 to 286
Feb 4, 2024 to Mar 28, 2024
Advisory employees · 289 to 265
Feb 4, 2024 to Mar 28, 2024
BD registered reps · 22 to 21
Feb 4, 2024 to Mar 28, 2024
Charity clients · 6 to 8
Feb 4, 2024 to Mar 28, 2024
HNW clients · 0 to 2
Feb 4, 2024 to Mar 28, 2024
Pension plan clients · 159 to 275
Feb 4, 2024 to Mar 28, 2024
Pooled vehicle clients · 41 to 42
Feb 4, 2024 to Mar 28, 2024

Signals

16 dated events

Christopher Aristotle Vassilopoulos left Aon Investments Usa Inc. for Johnson Investment Counsel, Inc. (registered 2025-09-02)
May 28, 2025 · Advisor changed firm · fact
Williams Nicole Robertson (Head Of Investment Operations - North America) appeared on Schedule A of Aon Investments Usa Inc.
Oct 31, 2024 · Control person joined · fact
Joseph Terrence Ransford (Global Head Of Investment Operations) no longer on Schedule A of Aon Investments Usa Inc. (listed 2024-08-29, absent 2024-10-31)
Oct 31, 2024 · Control person left · inference
Aon Investments Usa Inc. reported 12 offices beyond its principal office, down from 17 (2024-02-04 to 2024-03-28)
Mar 28, 2024 · Office count change · derived
A Steven Voss (Head Of Investments) no longer on Schedule A of Aon Investments Usa Inc. (listed 2024-02-04, absent 2024-03-28)
Mar 28, 2024 · Control person left · inference
Adam Edward Bardowski (U.S. Sales Leader) no longer on Schedule A of Aon Investments Usa Inc. (listed 2023-09-11, absent 2023-11-10)
Nov 10, 2023 · Control person left · inference
William Paul Rangecroft (Chief Executive Officer, Aon Wealth Solutions) no longer on Schedule A of Aon Investments Usa Inc. (listed 2023-09-11, absent 2023-11-10)
Nov 10, 2023 · Control person left · inference
Noah Ari Jacobs (Interim Global Head Of Investments) appeared on Schedule A of Aon Investments Usa Inc.
Nov 10, 2023 · Control person joined · fact
Aon Investments Usa Inc. reported 17 offices beyond its principal office, down from 24 (2022-11-11 to 2023-03-30)
Mar 30, 2023 · Office count change · derived
William Paul Rangecroft (Chief Executive Officer, Aon Wealth Solutions) appeared on Schedule A of Aon Investments Usa Inc.
Mar 30, 2022 · Control person joined · fact
Todd Stephen Cummings (Global Head Of Aon Investments) no longer on Schedule A of Aon Investments Usa Inc. (listed 2021-04-29, absent 2021-10-29)
Oct 29, 2021 · Control person left · inference
Richard Bryan Ward (Na Head Of Solutions And Sales) appeared on Schedule A of Aon Investments Usa Inc.
Mar 25, 2020 · Control person joined · fact
Adam Edward Bardowski (Investment Solutions Director Leader) appeared on Schedule A of Aon Investments Usa Inc.
Mar 25, 2020 · Control person joined · fact
Anthony David Kelly (Partner, North America Cio) no longer on Schedule A of Aon Investments Usa Inc. (listed 2019-08-14, absent 2019-12-12)
Dec 12, 2019 · Control person left · inference
Joseph Terrence Ransford (Partner, Global Head Of Investment Operations) appeared on Schedule A of Aon Investments Usa Inc.
Mar 29, 2019 · Control person joined · fact
Aon Investments Usa Inc. reported RAUM $109.0B, up 59% from $68.7B (2017-07-11 to 2018-03-28)
Mar 28, 2018 · RAUM change · derived

Across DFX

shared identifiers only, never a name match

No identifier-backed link to the venture, private equity, family office or sponsor graphs.

How to reach

public business contact points only, each with its source

Firm profile: linkedin.com/company/aonreportedpublic record, Form ADV, Sep 17, 2026
Website: insights-north-america.aon.comreportedpublic record, Form ADV, Sep 17, 2026
Principal office phone: 13123817963reportedpublic record, Form ADV, Mar 25, 2026

Provenance

Form ADV: SEC filing data 2011 to 2024 and the monthly roster 2025 onreportedadviserinfo.sec.gov
Advisors: IAPD individual compilation feed, dailyreportedadviserinfo.sec.gov
Class: Institutional managerderiveda rule over Items 5.D and 7.A
RAUM per advisor: n/aderivedfirm RAUM over the IAPD count; not a book size
Loaded: Sep 14, 2026

Across the graphs

Aon Investments USA Inc. is the same institution as 1 record in Real Estate Funds.

Real Estate Funds1

Which record it is in each graph, what it is called there, and what the two were joined on. The Data Factory holds all nine graphs and the identity layer between them.

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