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RIA / WealthRegistered adviserindependent wealth managerSEC registeredRAUM 100m 1b

SGL INVESTMENT ADVISORS, INC.

CRD 145167

MISSOULA, MT

This is the graph view. The full profile, with its team, deals and sources, is on RIA / Wealth Management.Open the full profile →

Search this name across graphsid dfx:ria:e240ba32-1844-2eec-b3f1-464f8e5210c9

Data as of Jul 23, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 6:22 AM UTC and rebuilt at most every 15 minutes.

Relationships: 35
Dated events: 8
On other graphs: 0
Observed: Jan 3, 2012 to Jul 23, 2026
36 observations

Across DFX

This entity has not been resolved onto another DFX graph by a shared identifier. A name match elsewhere would be a candidate, never an identity, and none is recorded.

Facts

fact = as filed or announced; derived = computed by DFX; estimate = a band, never a point

Firm class: independent wealth managerderivedprivate_client_share=0.87 fund_share=0.0 institutional_share=0.08 related_bd=true related_bank=false bd_reps=5.0
Regulatory AUM: $392MItem 5.F on the latest filing (2026-07-23); as reported, and an affiliate's assets may be counted again on its own filing
Discretionary RAUM: $392M
Private client RAUM: $339MderivedItem 5.D individuals plus high net worth individuals
Private client share: 87%derivedprivate client RAUM over total RAUM
Advisors on IAPD: 15
RAUM per advisor: $26.1Mderivedthe firm's RAUM over its IAPD headcount: a firm average, never a person's book
Employees: 7
Advisory employees: 6
Offices: 0Schedule D 1.F, beyond the principal office
Accounts: 1,236
Individual clients: 614
High net worth clients: 98
SEC number: 801-80443
CRD: 145167
Filings on the tape: 36
First filed: Jan 3, 2012
Latest filed: Jul 23, 2026
Organised: Corporation, MT
Website: sglinvestmentadvisors.com

Advisors on IAPD

current investment adviser representatives on the IAPD individual feed, longest tenure first

Advisor	Designations	Branch	Years here	In industry	Prior firms	Dual registered
SUSAN ELAINE WILLIAMS	n/a	MISSOULA, MT	17	32	n/a	yes
ROBERT GUY ISAAC SEIDENSCHWARZ	n/a	MISSOULA, MT	15	42	1	yes
JOSHUA DANIEL EDER	Certified Financial Planner	MISSOULA, MT	15	20	n/a	yes
DONALD GIFFORD GAUMER	n/a	MISSOULA, MT	15	19	2	yes
JOSHUA PAUL DENNEY	n/a	MISSOULA, MT	15	18	n/a	yes
DAVID ALBERT PEPPENGER	n/a	MISSOULA, MT	8	13	1	yes
KENNETH LOWELL FRESEMAN	n/a	MISSOULA, MT	8	34	3	yes
ZACHARY TYLER CARVALHO	n/a	MISSOULA, MT	8	12	n/a	yes
Kelly Ross Brunger	n/a	MISSOULA, MT	7	21	n/a	yes
ROBBYN MICHAEL RICHARDSON	Chartered Financial Analyst	MISSOULA, MT	7	19	1	no
Andrew Vern Harris	n/a	MISSOULA, MT	4	12	1	yes
MARCUS JOHN WELNEL	n/a	MISSOULA, MT	2	14	1	yes
Mitchell B Roberts	n/a	MISSOULA, MT	2	13	n/a	yes
JEFFREY HAYS	n/a	MISSOULA, MT	1	16	2	yes
Natalie Anne Larson	n/a	MISSOULA, MT	0	11	n/a	yes

Owners and control persons

Schedule A and B as filed; ownership codes are the form's bands (NA under 5%, A 5 to 10%, B 10 to 25%, C 25 to 50%, D 50 to 75%, E over 75%); people are listed as filed and never merged by name

Owner	Title	Ownership code	Control person	Acquired	First seen	Last seen
COOPER, DIRK, NATHAN	Director	Na	yes	02/2006	Jan 3, 2012	Sep 13, 2024
COSTA, BRUCE, ANTHONY	Director	Na	yes	06/2014	Mar 16, 2015	Sep 13, 2024
FELIX, DARLA, MARIE	CHIEF FINANCIAL OFFICER/ CHIEF COMPLIANCE OFFICER/SECRETARY	Na	yes	03/2023	Sep 29, 2020	Sep 13, 2024
KLEESE, MICHAEL, F	Director	Na	yes	02/2006	Jan 3, 2012	Sep 13, 2024
LONG, SCOTT, GREGORY	Owner	C	yes	02/2006	Jan 3, 2012	Sep 13, 2024
LONG, SCOTT, GREGORY	CHAIRMAN OF THE BOARD	Na	yes	02/2006	Jan 3, 2012	Sep 13, 2024
SG LONG FINANCIAL SERVICES CORP.	HOLDING CORPORATION	E	yes	02/2006	Sep 14, 2017	Sep 13, 2024
VINSO, JOSEPH, DAVID	Director	Na	yes	02/2006	Jan 3, 2012	Sep 13, 2024
WILLIAMS, SUSAN, ELAINE	President	Na	yes	03/2023	Jan 3, 2012	Sep 13, 2024
WILLIAMS, SUSAN, ELAINE	Owner	C	yes	07/2017	Jan 3, 2012	Sep 13, 2024
SEIDENSCHWARZ, ROBERT, GUY ISAAC	Director	B	no	11/2022	Sep 13, 2024	Sep 13, 2024

Affiliates (Item 7.A)

as filed on Item 7.A; a related person with a CRD on the graph links to its own page

Related person	Type	Class on the graph	Its RAUM	Control	Common control	State
S.G. LONG & COMPANY	n/a	State registered	$35.3M	N	yes	n/a

Regulatory AUM by fiscal year

annual amendments (and the roster's annual snapshot) as filed; where a year was amended twice the later filing draws the line

Fiscal year	Filed	RAUM	Discretionary	Employees	Advisory staff	Offices	Private funds	Fund GAV
2024	Sep 13, 2024	$351M	$351M	8	7	0	n/a	n/a
2023	Sep 27, 2023	$292M	$292M	9	6	0	n/a	n/a
2022	Sep 28, 2022	$212M	$212M	9	7	0	n/a	n/a
2021	Sep 23, 2021	$219M	$219M	8	6	0	n/a	n/a
2020	Sep 29, 2020	$169M	$169M	8	8	0	n/a	n/a
2019	Sep 30, 2019	$146M	$146M	5	5	0	n/a	n/a
2018	Sep 28, 2018	$137M	$137M	6	6	0	n/a	n/a
2017	Sep 28, 2017	$131M	$131M	6	5	n/a	n/a	n/a
2016	Oct 1, 2016	$127M	$127M	5	5	n/a	n/a	n/a
2015	Jul 13, 2015	$118M	$118M	5	5	n/a	n/a	n/a

Advisor flows

derived: registrations beginning and ending at this CRD on IAPD, bulk corporate re-registrations excluded; the rate is departures over IAPD headcount

Joined, 12m	Left, 12m	Net, 12m	Departure rate, 12m	Joined, 90d	Left, 90d	Left, no destination yet	Joined, 36m	Left, 36m
0	0	0	0.0%	0	0	0	1	2

Growth

derived from consecutive annual filings; RAUM as reported

Latest fiscal year	RAUM	A year earlier	1y change	Three years earlier	3y CAGR	Employees	A year earlier	Offices	A year earlier
2024	$392M	$292M	33.9%	$219M	21.5%	7	9	0	0

Relationships

Affiliated with (1)

→ S.G. LONG & COMPANYRegistered adviserother investment adviser, broker-dealer, common control
factForm ADV

Registered with (23)

← Natalie Anne LarsonAdvisorregistration: current employment
Feb 27, 2026 to presentfactForm ADV
← JEFFREY HAYSAdvisorregistration: current employment
Aug 12, 2025 to presentfactForm ADV
← Mitchell B RobertsAdvisorregistration: current employment
Mar 5, 2024 to presentfactForm ADV
← MARCUS JOHN WELNELAdvisorregistration: current employment
Feb 12, 2024 to presentfactForm ADV
← Andrew Vern HarrisAdvisorregistration: current employment
Aug 24, 2022 to presentfactForm ADV
← ZACHARY TYLER CARVALHOAdvisorregistration: current employment
Apr 30, 2021 to presentfactForm ADV
← Kelly Ross BrungerAdvisorregistration: current employment
Jan 15, 2021 to presentfactForm ADV
← DAVID ALBERT PEPPENGERAdvisorregistration: current employment
Jan 14, 2021 to presentfactForm ADV
← KENNETH LOWELL FRESEMANAdvisorregistration: current employment
Jan 7, 2021 to presentfactForm ADV
← ROBBYN MICHAEL RICHARDSONAdvisorregistration: current employment
Jun 19, 2019 to presentfactForm ADV
← JOSHUA PAUL DENNEYAdvisorregistration: current employment
Feb 7, 2011 to presentfactForm ADV
← DONALD GIFFORD GAUMERAdvisorregistration: current employment
Feb 2, 2011 to presentfactForm ADV
← ROBERT GUY ISAAC SEIDENSCHWARZAdvisorregistration: current employment
Jan 21, 2011 to presentfactForm ADV
← JOSHUA DANIEL EDERAdvisorregistration: current employment
Jan 21, 2011 to presentfactForm ADV
← SUSAN ELAINE WILLIAMSAdvisorregistration: current employment
Sep 24, 2008 to presentfactForm ADV
← KATHLEEN O'DELLAdvisorregistration: previous registration
Mar 29, 2022 to Feb 1, 2024factForm ADV
← Thomas YoungAdvisorregistration: previous registration
Jan 4, 2023 to Feb 1, 2024factForm ADV
← ERIC ROBERT JOYNTAdvisorregistration: previous registration
Apr 4, 2022 to Jun 6, 2022factForm ADV
← KENNETH BERNARD HOPKINSAdvisorregistration: previous registration
Oct 3, 2013 to Mar 2, 2015factForm ADV
← KELSEY KEANNA HASTERLIKAdvisorregistration: previous registration
Oct 1, 2013 to Mar 19, 2014factForm ADV
← Melissa Mullins ShanhouseAdvisorregistration: previous registration
Apr 22, 2013 to Oct 4, 2013factForm ADV
← EVAD PATRICK VANSPOOREAdvisorregistration: previous registration
Jan 21, 2011 to May 22, 2012factForm ADV
← ERNEST DALE ROOAdvisorregistration: previous registration
Jan 24, 2011 to Jul 6, 2011factForm ADV

Owns (1)

← SEIDENSCHWARZ, ROBERT, GUY ISAACOwnerDIRECTOR, ownership code B, individual
Sep 13, 2024 to Sep 13, 2024factForm ADV

Controls (8)

← LONG, SCOTT, GREGORYOwnerOWNER, ownership code C, individual
Jan 3, 2012 to Sep 13, 2024factForm ADV
← VINSO, JOSEPH, DAVIDOwnerDIRECTOR, ownership code NA, individual
Jan 3, 2012 to Sep 13, 2024factForm ADV
← WILLIAMS, SUSAN, ELAINEOwnerOWNER, ownership code C, individual
Jan 3, 2012 to Sep 13, 2024factForm ADV
← KLEESE, MICHAEL, FOwnerDIRECTOR, ownership code NA, individual
Jan 3, 2012 to Sep 13, 2024factForm ADV
← COOPER, DIRK, NATHANOwnerDIRECTOR, ownership code NA, individual
Jan 3, 2012 to Sep 13, 2024factForm ADV
← FELIX, DARLA, MARIEOwnerCHIEF FINANCIAL OFFICER/ CHIEF COMPLIANCE OFFICER/SECRETARY, ownership code NA, individual
Sep 29, 2020 to Sep 13, 2024factForm ADV
← COSTA, BRUCE, ANTHONYOwnerDIRECTOR, ownership code NA, individual
Mar 16, 2015 to Sep 13, 2024factForm ADV
← SG LONG FINANCIAL SERVICES CORP.OwnerHOLDING CORPORATION, ownership code E, domestic entity
Sep 14, 2017 to Sep 13, 2024factForm ADV

Dated events

Occurred
Feb 1, 2024
Advisor changed firm
Kathleen O'Dell left Sgl Investment Advisors, Inc. for Ameriprise Financial Services, Llc (registered 2023-07-18)
Form ADVobserved 5 days ago
Occurred
Feb 1, 2024
Advisor changed firm
Thomas Young left Sgl Investment Advisors, Inc. for Merrill Lynch, Pierce, Fenner & Smith Incorporated (registered 2023-06-06)
Form ADVobserved 5 days ago
Occurred
Mar 14, 2023
Control person left
Noelle Tessa Greene (Chief Compliance Officer) no longer on Schedule A of Sgl Investment Advisors, Inc. (listed 2022-09-28, absent 2023-03-14)
Form ADVobserved 5 days ago
Occurred
Jun 6, 2022
Advisor changed firm
Eric Robert Joynt left Sgl Investment Advisors, Inc. for Prospettiva Financial (registered 2023-11-21)
Form ADVobserved 5 days ago
Occurred
Sep 29, 2020
Control person left
Jean Kimberly Smith (Cco) no longer on Schedule A of Sgl Investment Advisors, Inc. (listed 2020-06-29, absent 2020-09-29)
Form ADVobserved 5 days ago
Occurred
Sep 29, 2020
Control person joined
Noelle Tessa Greene (Chief Compliance Officer) appeared on Schedule A of Sgl Investment Advisors, Inc.
Form ADVobserved 5 days ago
Occurred
Sep 29, 2020
Control person joined
Marie Darla Felix (Chief Financial Officer) appeared on Schedule A of Sgl Investment Advisors, Inc.
Form ADVobserved 5 days ago
Occurred
Sep 30, 2014
First Form ADV filing
Sgl Investment Advisors, Inc. filed its initial SEC registration (Form ADV)
Form ADVobserved 5 days ago

Provenance

Graph: RIA / Wealth Management
Canonical id: dfx:ria:e240ba32-1844-2eec-b3f1-464f8e5210c9
First observed: Jan 3, 2012
Last observed: Jul 23, 2026 59 days ago
Source families: Federal regulator filings
3 registered feeds stand behind this record; each fact above carries its own dates and, where the publisher serves one, its document.
Resolution: Identity across graphs by shared identifier (CRD, CIK, EIN, ADV fund id, individual CRD) or citation; a name match is shown as a candidate and never merged.

SGL INVESTMENT ADVISORS, INC.

CRD 145167

MISSOULA, MT

This is the graph view. The full profile, with its team, deals and sources, is on RIA / Wealth Management.Open the full profile →

Search this name across graphsid dfx:ria:e240ba32-1844-2eec-b3f1-464f8e5210c9

Data as of Jul 23, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 6:22 AM UTC and rebuilt at most every 15 minutes.

Advisor

Designations

Branch

Years here

In industry

Prior firms

Dual registered

SUSAN ELAINE WILLIAMS

n/a

MISSOULA, MT

n/a

yes

ROBERT GUY ISAAC SEIDENSCHWARZ

n/a

MISSOULA, MT

yes

JOSHUA DANIEL EDER

Certified Financial Planner

MISSOULA, MT

n/a

yes

DONALD GIFFORD GAUMER

n/a

MISSOULA, MT

yes

JOSHUA PAUL DENNEY

n/a

MISSOULA, MT

n/a

yes

DAVID ALBERT PEPPENGER

n/a

MISSOULA, MT

yes

KENNETH LOWELL FRESEMAN

n/a

MISSOULA, MT

yes

ZACHARY TYLER CARVALHO

n/a

MISSOULA, MT

n/a

yes

Kelly Ross Brunger

n/a

MISSOULA, MT

n/a

yes

ROBBYN MICHAEL RICHARDSON

Chartered Financial Analyst

MISSOULA, MT

Andrew Vern Harris

n/a

MISSOULA, MT

yes

MARCUS JOHN WELNEL

n/a

MISSOULA, MT

yes

Mitchell B Roberts

n/a

MISSOULA, MT

n/a

yes

JEFFREY HAYS

n/a

MISSOULA, MT

yes

Natalie Anne Larson

n/a

MISSOULA, MT

n/a

yes

Owner

Title

Ownership code

Control person

Acquired

First seen

Last seen

COOPER, DIRK, NATHAN

Director

yes

02/2006

Jan 3, 2012

Sep 13, 2024

COSTA, BRUCE, ANTHONY

Director

yes

06/2014

Mar 16, 2015

Sep 13, 2024

FELIX, DARLA, MARIE

CHIEF FINANCIAL OFFICER/ CHIEF COMPLIANCE OFFICER/SECRETARY

yes

03/2023

Sep 29, 2020

Sep 13, 2024

KLEESE, MICHAEL, F

Director

yes

02/2006

Jan 3, 2012

Sep 13, 2024

LONG, SCOTT, GREGORY

Owner

yes

02/2006

Jan 3, 2012

Sep 13, 2024

LONG, SCOTT, GREGORY

CHAIRMAN OF THE BOARD

yes

02/2006

Jan 3, 2012

Sep 13, 2024

SG LONG FINANCIAL SERVICES CORP.

HOLDING CORPORATION

yes

02/2006

Sep 14, 2017

Sep 13, 2024

VINSO, JOSEPH, DAVID

Director

yes

02/2006

Jan 3, 2012

Sep 13, 2024

WILLIAMS, SUSAN, ELAINE

President

yes

03/2023

Jan 3, 2012

Sep 13, 2024

WILLIAMS, SUSAN, ELAINE

Owner

yes

07/2017

Jan 3, 2012

Sep 13, 2024

SEIDENSCHWARZ, ROBERT, GUY ISAAC

Director

11/2022

Sep 13, 2024

Related person

Type

Class on the graph

Its RAUM

Control

Common control

State

S.G. LONG & COMPANY

n/a

State registered

$35.3M

yes

n/a

Fiscal year

Filed

RAUM

Discretionary

Employees

Advisory staff

Offices

Private funds

Fund GAV

2024

Sep 13, 2024

$351M

n/a

2023

Sep 27, 2023

$292M

n/a

2022

Sep 28, 2022

$212M

n/a

2021

Sep 23, 2021

$219M

n/a

2020

Sep 29, 2020

$169M

n/a

2019

Sep 30, 2019

$146M

n/a

2018

Sep 28, 2018

$137M

n/a

2017

Sep 28, 2017

$131M

n/a

2016

Oct 1, 2016

$127M

n/a

2015

Jul 13, 2015

$118M

n/a

Joined, 12m

Left, 12m

Net, 12m

Departure rate, 12m

Joined, 90d

Left, 90d

Left, no destination yet

Joined, 36m

Left, 36m

0.0%

Latest fiscal year

RAUM

A year earlier

1y change

Three years earlier

3y CAGR

Employees

A year earlier

Offices

A year earlier

2024

$392M

$292M

33.9%

$219M

21.5%