Main Street Research LLC
Data sourced from SEC public records (and other sources when available). Refreshed weekly • Updated today.
Client AUMClient assets under management
$2,621,086,556
Clients
1,018
Advisors
20
across 3 offices
About
Main Street Research LLC provides wealth management to individuals, families, foundations, and institutions, delivering comprehensive financial planning and discretionary investment management. The firm manages roughly $2.68 billion for about 1,018 client relationships through a multi‑advisor team of 17 and serves both non‑high‑net‑worth and high‑net‑worth clients, with outside chief investment officer services available for institutional or foundation clients.
Investment advice is tailored through in‑depth client interviews and an investment policy process overseen by an internal investment committee that applies fundamental, quantitative, and technical analysis. Portfolios emphasize individual securities — domestic and foreign stocks, bonds, REITs, MLPs, and preferred stock — with ETFs used for diversification or access, and the firm offers an ESG model and the ability to select sub‑advisors for specialized strategies.
Notably, MSR offers an elective performance‑based fee schedule (available only to Rule 205‑3 qualified clients) that combines a management fee with a quarterly performance allocation subject to a high‑water mark and tiered allocation percentages. The firm also engages sub‑advisors for specialized overlays — including an options/collar program for concentrated stock positions (via SpiderRock Advisors) and an active long/short tax‑loss harvesting strategy (via Quantinno) that requires margin — and requires a 24‑month commitment when clients change fee schedules.
Client services
Expertise
Occupation focus
Fee options
$0 - $2,000,000: 1.2500% (Traditional Fee Schedule) $2,000,000 - $5,000,000: 1.0000% (Traditional Fee Schedule) $5,000,000 - $10,000,000: 0.7500% (Traditional Fee Schedule) $10,000,000 - $20,000,000: 0.5000% (Traditional Fee Schedule) $20,000,000 - $40,000,000: 0.2500% (Traditional Fee Schedule) $40,000,000 - $60,000,000: 0.1500% (Traditional Fee Schedule) $60,000,000+: 0.1000% (Traditional Fee Schedule) $0 - $2,000,000: 0.7500% (Performance Fee Schedule) $2,000,000 - $5,000,000: 0.6250% (Performance Fee Schedule) $5,000,000 - $10,000,000: 0.5000% (Performance Fee Schedule) $10,000,000 - $20,000,000: 0.2500% (Performance Fee Schedule) $20,000,000 - $40,000,000: 0.1500% (Performance Fee Schedule) $40,000,000+: 0.1000% (Performance Fee Schedule)
Performance fee calculated quarterly based on net profits with rates from 5% (assets < $5M) down to 1% (assets > $60M), subject to a high water mark. Requires 'qualified client' status with at least $1,100,000 AUM or $2,200,000 net worth.
Account minimum: $1,000,000 for Traditional Fee Schedule; $1,100,000 for Performance Fee Schedule (negotiable in limited circumstances)
Main office
See office342 Main Street
Lakeville CT 06039
Advisors at this office
14
Offices (3)
Most active in
Alabama · Arizona · Arkansas · California · Colorado · Connecticut · Delaware · District of Columbia · Florida · Georgia · Hawaii · Illinois · Indiana · Iowa · Kentucky · Louisiana · Maine · Maryland · Massachusetts · Michigan · Minnesota · Missouri · Montana · Nevada · New Hampshire · New Jersey · New Mexico · New York · North Carolina · North Dakota · Ohio · Oregon · Pennsylvania · Rhode Island · South Carolina · Tennessee · Texas · Utah · Vermont · Virginia · Washington · West Virginia
Disclosures
Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.
Business activities & affiliations
Is not active or affiliated with:
-
Insurance agent
They sell insurance products and may earn commissions on those sales.
-
Broker-dealer / trader
They provide brokerage services and may earn transaction-based compensation in addition to advisory fees.
-
Bank
They're affiliated with a bank that may offer its own financial products and services.
-
Trust company
They provide trust and estate administration services, typically for separate fees.
-
Fund sponsor
They manage or sponsor investment funds and may earn management or performance-based fees if clients invest in them.
-
Accountant / CPA / tax prep
They offer tax and accounting services, typically for separate fees.
-
Lawyer
They provide legal services, typically billed separately.
-
Real estate agent
They facilitate real estate transactions and may earn commissions.
-
Other specialized services
They may provide services such as pension consulting or municipal advisory work, typically for separate fees.
Quick links
Advisors at this firm
Not sure where to start?
We'll help you think it through—whether you ultimately need an advisor or not. Warmer helps you compare advisors clearly, so you can choose with confidence.
For advisor listings, we rely on sources including public filings and data provided by advisors, and we cannot guarantee that all information is current or accurate. Advisors are independent and may not have reviewed or updated this information. Please review an advisor’s Form ADV and do your own diligence before deciding whether to work with them.
Advisor matching and introductions are provided by FinanceHQ LLC (“FHQ”), a wholly-owned subsidiary of Warmer and an SEC-registered investment advisor. We receive compensation from certain participating advisors for introductions or referrals. This creates a conflict of interest because we have an incentive to recommend advisors who compensate us, including those who pay us more. You pay no fee to use our matching service, and advisor fees are not increased because of a referral or introduction. We do not review the ongoing performance of advisors, manage or hold assets, guarantee performance, or provide advice about specific investments.
By using our service, you agree to our Terms of Service and Advisory Agreement, and acknowledge our Privacy Policy. Please review FHQ’s ADV Part 2A and Form CRS. Logos provided by Logo.dev
© 2026 Warmer Holdings Inc. (“Warmer”)