SourcingSourcing

HARBOR ISLAND CAPITAL LLC

C40
CRD 107457·SEC 801-113401·TOPSFIELD, MA
AUM
$277.6M
$100M-$500M
Est. Revenue
$2.8M
@ 1% on AUM
Est. EBITDA
$833K
@ 30% margin
Est. Deal Value
$6.7M
@ 8× EBITDA

Identity

Registrations & legal identity

Legal name
HARBOR ISLAND CAPITAL LLC
CRD
107457
SEC file #
801-113401
EIN
043450585
DBA names
—

Economics

AUM
$277.6M
AUM band
$100M-$500M
AUM trajectory
'20'26
$102.5M → $277.6M▲ +171%
Client mix
Individuals High Net Worth13
Other1

Operations

Employees (total)
2
Advisory staff (per ADV)
2
Advisory staff (5-yr trend)
'20'26
2 advisors → 2 advisors▬ 0%
Primary office
TOPSFIELD MA
Branches
—

Custodian & Brokerage

Primary custodian
Charles Schwablow confidence
Services offered
Portfolio mgmt — individuals
Fee basis
% of AUM

Filings

Latest ADV filing
03/06/2026
ADV-W filed at
—
Website
—

Compliance

Disclosures (firm)
0
Trademark
—
Additional signalsExpand ▾

Ownership & succession ★

Who controls the firm + pre-computed succession flags

Top Owner Name
FORTIN, PAUL, DAVID
Top Owner Pct
87.5
Top Owner Entity Kind
I
Owner Count
1
Control Persons
FORTIN, PAUL, DAVID
Solo Advisor Indicator
No
Succession Risk Solo Owner
Yes
Is Parent Owned Subsidiary
No

Availability / M&A ★

Already-acquired = skip; deal comps

Adv W Filed
No

Retirement-plan book (Form 5500) ★

401(k)/plan business — cross-sell value

Retirement Plan Book
No

SEC EDGAR

Edgar Cik
0001730580
Edgar Registered
Yes
Edgar Filing Count
36
Edgar First Filing Date
2018-02-09
Edgar Last Filing Date
2026-05-12
Edgar 13f Count
34
Edgar 13f Latest AUM Estimate
Filing Date2026-05-12
Accession0001172661-26-001706

Compliance & brand

Firm Registration Status
active

All other collected signals (12)

Everything else we've pulled for this record, not yet curated into a section.

Adv W Recently Filed
No
Bc Firm Active Bc Count
0
Bc Firm Active IA Count
2
Bc Firm IAR Count
2
Custodian Candidates
Full
Charles Schwab6
E*trade4
Edgar Addresses
Mailing
7 GROVE STREETUNIT 302TOPSFIELD, MA 01983
Business
7 GROVE STREETUNIT 302TOPSFIELD, MA 01983
Edgar EIN
043450585
Edgar Recent Filings
13F-HR2026-05-12 · 0001172661-26-001706
13F-HR2026-01-23 · 0001172661-26-000293
Firm Has Custody
No
Mailing Office Differs
No
Top Owner CRD
4338150
Trust Company Affiliate
No

People (2)

2
FORTIN, PAUL, DAVID
IAR · Direct Owner · 87.5%
4338150
Denise L Heimel
IAR
4863466