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Justin Deni

Investment Adviser Representative at Northwestern Mutual Investment Services,llc

Kng Of Prussia, PACRD #5478376Dual-registered
No disclosures on record
Sourced from SEC IAPD & FINRA BrokerCheck
Years of Experience
18 yrs
Exams Passed
6

Professional summary

Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.

Justin Deni is an investment adviser representative with Northwestern Mutual Investment Services,llc in Kng of Prussia, PA, where they have been registered since 2017. They have worked in the securities industry since 2008 and have been registered with 3 firms, including Janney Montgomery Scott LLC and UBS Financial Services Inc. They have passed 6 industry qualification exams, including the Series 66 (combined investment adviser and state securities agent), Series 7 (general securities representative), and Series 9 (options sales supervisor). They are registered to provide investment advice in Pennsylvania.

Office

1000 Continental Drive, Suite 695
Kng Of Prussia, PA 19406

Advisors at this office: 16

Branch office as filed with FINRA, counting current advisors in the directory who work there.

Registrations & licenses

Registration type
Dual-registered
As of August 17, 2026, from the advisor's current registrations on SEC IAPD
State registrations
Investment adviser:
Pennsylvania
Broker:
51 states and territories

Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming

Registration requirements vary by state and service. Contact the advisor's firm to confirm whether they can serve you.

Examinations passed
Series 66
Uniform Combined State Law Examination
Passed 12/19/2008
Series 99
Operations Professional Examination
Passed 1/2/2023
SIE
Securities Industry Essentials Examination
Passed 10/1/2018
Series 7
General Securities Representative Examination
Passed 5/19/2008
Series 10
General Securities Sales Supervisor - General Module Examination
Passed 4/28/2011
Series 9
General Securities Sales Supervisor - Options Module Examination
Passed 4/2/2011

Financial-firm registration history

Registration history as reported to FINRA, most recent first.

Northwestern Mutual Investment Services,llcCurrent
9/26/2017 – Kng Of Prussia, PA
Janney Montgomery Scott LLC
10/22/2013 – 9/25/2017Philadelphia, PA
UBS Financial Services Inc.
9/5/2012 – 10/23/2013Philadelphia, PA

Reported employment history

Employment the advisor reported on their SEC/FINRA filings, as of October 8, 2026. It may not be a complete history.

  1. Janney Montgomery Scott LLC
    Oct 2013 – Sep 2017Philadelphia, PA
  2. Stephen Guinan
    Sep 2017 – no end date reportedKng Of Prussia, PA
  3. Northwestern Mutual Investment Services LLC
    Sep 2017 – no end date reportedKng Of Prussia, PA

Official records & sources

Data as of August 11, 2026 · Source: SEC IAPD & FINRA BrokerCheck

About Northwestern Mutual Investment Services,llc

These details describe the firm overall. Individual advisors' services, clients, and fees may differ.

Fee arrangements the firm reports

  • Fixed fee
  • Other

Arrangements the firm reports on its Form ADV; this advisor may not charge every fee listed. Estimated from the firm's Form ADV — individual terms may differ. Not a quote.

Services the firm offers

Unknown

Client types the firm serves

Unknown

Firm assets under management

Unknown

Firm disclosures (Form ADV)
Unknown

Source: firm Form ADV filing

Similar advisors in Kng Of Prussia, PA

Other advisors whose filed branch office is in the same city.

About this profile

This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. Justin Deni has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on BrokerCheck or SEC.gov before making any decision. AdvisorFinder may be compensated for referrals generated through this page.

BrokerCheck data is used subject to the FINRA BrokerCheck Terms of Use. Found something inaccurate? Report inaccurate data and we will correct any error we introduced. Errors in the underlying BrokerCheck record itself are referred to FINRA, which maintains that record.

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Justin Deni (Northwestern Mutual Investment Services,llc)