Five Mile River Investment Management, LLC

RIASEC RegisteredEst. 2026
Total AUM
$109M
Discretionary
$109M
100% of AUM
Avg account
$988K
Accounts
110
Employees
4
Advisory reps
4

Firm details

Headquarters
,
CRD number
125964
Registered since
June 25, 2026
Custodians
RBC CAPITAL MARKETS, LLC
Fee structure
Percentage of AUM
Client types
  • HNWI96.82%
  • Charitable Organizations2.17%
  • Pension & Profit Sharing Plans1.02%
Services
Portfolio Management for Individuals

Firm profile

FINTRX

Overview

Five Mile River Investment Management, LLC is a privately owned investment adviser organized as a limited liability company. The firm provides discretionary portfolio management primarily for individuals, families and small businesses, while also working with some institutional clients. Its revenue model is a percentage-of-assets-under-management fee schedule. The firm does not identify as an ESG-focused manager.

Assets & Accounts

Public Holdings

Investments & Alternatives

Location & Offices

Investment profile

FINTRX

Traditional investments used

Alternative investments used

Active ESG investor

Technology & operations

FINTRX

CRM & tech providers

TAMPs used

Clients

FINTRX

Client base

Client personas

Asset composition

Asset composition: Non-Exchange Traded Equities 85%, Cash & Cash Equivalents 10%, Exchange Traded Equities 5%85%
  • Non-Exchange Traded Equities85%
  • Cash & Cash Equivalents10%
  • Exchange Traded Equities5%

Owners & executives

1 of 1
  • Thayer Robbins

    Thayer Robbins

    Chief Compliance Officer & Portfolio ManagerCRD 400715

Contacts

3 of 3
  • Martha Robbins

    Martha Robbins

    PresidentCRD 4627736

  • Lee Garcia

    Porfolio ManagerCRD 4627740

  • Mary Robbins

    Mary Robbins

    Investment Strategist, Portfolio ManagerCRD 6183879

Wealth teams

FINTRX

Newly hired reps

FINTRX

Recent M&A activity

FINTRX

Recent filings

FINTRX

Awards

FINTRX

Location

Primary office

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Location

, null

Headquartered in , null.

Office locations

Similar firms

Source: FINTRX private wealth data intelligence

Intelligence for Private Wealth