AdvisorCheck - Find and Connect with Top Financial Advisors on Your Terms
Why Advisor Check
MD

Mark B. Decker

DECKER & CO
Menlo Park, CA 94025
Some features on this profile are disabled
CRD#: 5692814
MD

Professional summary


Mark Brandon Decker is a registered financial professional currently at DECKER & CO, LLC located in Menlo Park, California.

Mark is registered as a RR (Registered Representative) and started their career in finance in 2009. Mark has worked at 3 firms and has passed the Series 63, SIE, Series 7, Series 14 and Series 24 exams.

top-8-questions

Question & Answer


Are you a "fiduciary"?
No

Aliases


None

Other business activities


Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.
The advisor shows no other business activity.

Blog Corner


CRS (Client Relationship Summary) - BD


Click below to view Mark Brandon Decker's CRS (Customer Relationship Summary).

Certified licenses


Advisors may have various certifications and credentials from different organizations. AdvisorCheck highlights these seven certifications - AIF®, CFP®, ChFC®, CFA, CLU®, CIMA®, CPWA®
None

Experience


Current

June 20, 2013 - Present

DECKER & CO, LLC

Office #1: 700 El Camino Real Suite 120, Menlo Park, CA 94025
BD
CRD#: 166446
Menlo Park, CA
Past

August 29, 2019 - April 15, 2020

WEDBUSH SECURITIES INC.

BD
CRD#: 877
SAN FRANCISCO, CA
Past

July 24, 2009 - November 16, 2012

MAYBANK SECURITIES USA INC.

BD
CRD#: 27861
MENLO PARK, CA

State Registrations and Notice Filings


Listed states reflect where the advisor is authorized to serve clients under state regulations.

RR
indicates the advisor is registered as a Registered Representative in this state, allowing them to offer securities such as stocks, bonds, and mutual funds through a broker-dealer.

Visual representation of state registrations

RR
California
(6/20/2013)

Exams


State Security Law Exam
RR
Series 63
Date: 1/8/2010
Uniform Securities Agent State Law Examination
General Industry/Product Exam
General Industry/Product Exam
Principal/Supervisory Exam
RR
Series 14
Date: 1/2/2023
Compliance Officer Examination
Principal/Supervisory Exam
SRO Registrations
RR
FINRA

Current Firm


D&
DECKER & CO, LLC
DECKER & CO, LLC

CRD#: 166446 / SEC#: , 8-69211

BD
Broker-Dealer Firm Regulated by FINRA (San Francisco district office)
Upgrade to AdvisorCheck Premium
Get A Biweekly Pulse, AutomaticallyReceive biweekly alerts automatically. Stay informed and proactive.
Catch Firm-Level Red Flags SoonerCatch leadership changes and disclosures early, before issues escalate.
See Trends. Not Just SnapshotsMonitor firm stability metrics like AUM and advisor ratios over time.

Contact information


Main Address
700 El Camino Real Suite 120, Menlo Park, CA 94025
Mailing Address
700 El Camino Real Suite 120, Menlo Park, CA 94025
Phone number
(415) 830-9890
Established
Delaware since 10/31/2012
Firm type
Limited Liability Company
Fiscal year end
December
Firm Size
Small
# of Employees

FINRA licenses (1 States and Territories)


Blank US states mapAlaskaHawaiiAlabamaArkansasArizonaCaliforniaColoradoConnecticutDelawareFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWisconsinWest VirginiaWyoming

Documents


Direct owners and executive officers


NamePositionCRD#
DECKER, MARK BRANDONCCO/CEO/MANAGING MEMBER5692814
KORNSRI, HARINSHAREHOLDER6157452
PHANSUWON, KUNJANAPHANSHAREHOLDER6157450
ONESTO, RICHARD ERNESTFINOP2453096

Disclosures


Regulatory Event2

Red Flags


Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities.

Check for any disclosures as part of your thorough research when choosing an advisor.

Company Information


DECKER & CO, LLC

CRD#: 166446Menlo Park, CA 94025

TRUST BUT VERIFY

Monitor Mark Decker

Get automatic monthly alerts on:
Job or Firm Moves
Licensing Changes
Client Complaints
New Red Flags
Contact Information Updates

Similar Advisors


Ashkahn Moayedi
Ashkahn MoayediAdvisorCheck Check Mark
WELLS FARGO CLEARING SERVICES, LLC
IAR
RR
DANVILLE, CA
Ronald William Guay
Ronald GuayAdvisorCheck Check Mark
FALCON WEALTH PLANNING, INC.
IAR
San Jose, CA
footer-logo

AdvisorCheck does not offer investment advice and should not replace discussions with professional accounting, tax, legal or financial advisors.
© 2025 AdvisorCheck, an AIMR Analytics company.
All rights reserved.
Powered ByAIRM Analytics