Mainstay Capital Management, LLC

RIASEC Registered

Total AUM

$5.3B

Discretionary

$4.7B

88% of AUM

Avg account

$1.5M

Accounts

3,460

Employees

Advisory reps

Firm details

Headquarters: Grand Blanc, Michigan
CRD number: 109528
Registered since: November 14, 2000
Website: www.mainstaycapital.com
Custodians: CHARLES SCHWAB & CO., INC., PERSHING LLC
Fee structure: Percentage of AUM, Fixed Fees
Client types: HNWI77.65%
Individuals15.29%
Banking / Thrift Institutions7%
Corporations / Businesses0.05%
Services: Financial PlanningPortfolio Management for IndividualsEducational Seminars / Workshops

Firm profile

FINTRX

Overview

Mainstay Capital Management, LLC is an independent, individual‑owned registered investment adviser that has been SEC‑registered since 2000. The firm serves primarily individual and family clients and provides portfolio management for individuals and small businesses, financial planning, and educational seminars and workshops. Its fee model combines a percentage of assets under management with fixed fees. Mainstay is not an ESG‑driven investor and does not describe itself as a capital allocator; it deploys client capital through traditional investment vehicles and third‑party alternative managers rather than operating its own private funds. The firm has been featured in industry lists, including consecutive Forbes Top RIA recognitions (2022–2024) and a CNBC Top 100 Financial Advisory Firms placement in 2025.