David Keith Riffe
Investment Adviser Representative at KEY Investment Services LLC
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
David Keith Riffe is an investment adviser representative with KEY Investment Services LLC in Meridian, ID, where they have been registered since 2025. They have worked in the securities industry since 2000 and have been registered with 12 firms, including Mercer Global Advisors Inc. and LPL Financial LLC. They have passed 5 industry qualification exams, including the Series 66 (combined investment adviser and state securities agent), Series 7 (general securities representative), and Series 24 (general securities principal). They are registered to provide investment advice in Idaho.
Office
Advisors at this office: 2
Branch office as filed with FINRA, counting current advisors in the directory who work there.
Registrations & licenses
- Investment adviser:
- Idaho
- Broker:
2 states and territories
Idaho, Washington
Registration requirements vary by state and service. Contact the advisor's firm to confirm whether they can serve you.
Financial-firm registration history
Registration history as reported to FINRA, most recent first.
Reported employment history
Employment the advisor reported on their SEC/FINRA filings, as of October 8, 2026. It may not be a complete history.
- Waddell & REED, IncFeb 2015 – Nov 2019Boise, ID
- Massmutual LIFE Insurance CompanyNov 2016 – Jun 2019Meridian, ID
- MML Investors Services,llcDec 2016 – Jun 2019Meridian, ID
- Ameritas Investment CorpJul 2019 – Dec 2019Lincoln, NE
- Ameritas LIFE Insurance CorpJun 2019 – Feb 2021Lincoln, NE
- GEM State Financial GroupJun 2019 – Feb 2021Boise, ID
- LPL Financial LLCFeb 2021 – May 2022Kalispell, MT
- First Interstate BANKFeb 2021 – May 2022Kalispell, MT
- Mercer Global Advisors Inc.May 2022 – Apr 2025Boise, ID
- Key Investment Services, LLCSep 2025 – no end date reportedBrooklyn, OH
- UnemployedApr 2025 – Sep 2025Boise, ID
Official records & sources
Data as of August 10, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About KEY Investment Services LLC
These details describe the firm overall. Individual advisors' services, clients, and fees may differ.
Fee arrangements the firm reports
- Percentage of assets under management
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
Client types the firm serves
Firm assets under management
$5B–$25B
- Firm disclosures (Form ADV)
- Disciplinary history reportedVerify on SEC IAPD
- Advisors listed on AdvisorFinder:
- 638
- Offices listed on AdvisorFinder:
- 15
- Main office:
- Brooklyn, OH
- SEC file number:
- 801-65060
Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.
Form ADV data as of June 30, 2026
View full firm profileOther advisors at KEY Investment Services LLC
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This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. David Keith Riffe 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.
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