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Sentinel Advisory Group, LLC

Sentinel Advisory Group, LLC. CRD 338121

Sentinel Advisory Group, LLC logo

CRD: 338121

Sentinel Advisory Group, LLC

$320.8M Total AUM
$320.8M Disc. AUM
-- 3Y CAGR
10 Employees
381 ADV. Clients
0 yrs Firm Age

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Firm Details

Custodian
Fidelity/NFS · LPL Financial · Vanguard
Clients
Retail and Institutional
Platforms
Available
Established Date
12-02-2025
Office Locations
1

Office Locations

1600 Aspen Commons Suite 825 Middleton WI

About Sentinel Advisory Group, LLC

Sentinel Advisory Group, LLC is a Middleton-based RIA. The firm has been operating for 0 years. Managing $320.8M in total assets under management, with 8 advisory representatives. They custody assets with Fidelity/NFS and LPL Financial.

Team overview

37 AVG AGE
$40.1M AVG AUM / ADVISOR
$841.9K AVG AUM / CLIENT
0.6 yrs AVG TENURE
10 Employees
8 Advisory Reps
8 RIA Reps
0yrs Firm Age

Insights

Available
Available
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Available
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Asset Classes

Available

Client Personas

Available

Custodian

Available

Investment Themes

Available

Investment Vehicles

Available

Services

Available

Technology

Available

Owner & Executives

B

BRENTON LEE CASHORE

PARTNER

CRD
#5710968
Ownership
25% but less than 50%
Available
Available
Available
N

NATHAN FORD KEELING

PARTNER

CRD
#6398568
Ownership
25% but less than 50%
Available
Available
Available

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Contacts

K

Karly Jo Costanzo

--

CRD
#7139028
Available
Available
Available
C

CARY ARMIN GRUNDER

--

CRD
#2102670
Available
Available
Available

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Assets Under Management

Total AUM
Discretionary
Non-Discretionary
03-02-2026
Category Assets AVG. Account size
Discretionary $320,751,824 $294,538
Non-Discretionary $0 --
Total $320,751,824 $294,538

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Separately Managed Accounts

Total SMA Asset: Available

Locked Total SMA
Public Funds:
Available
Cash:
Available
Equity - Exchange:
Available
Municipal Bonds:
Available
Other:
Available
Asset class Assets Assets %
Public Funds Available Available
Cash Available Available
Equity - Exchange Available Available
Municipal Bonds Available Available
Other Available Available
Total Available Available

13F Holdings | Q2 2026

Issuer Class CUSIP Ticker % Value
Available Available Available Available Available Available
Available Available Available Available Available Available
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