Fee-only adviser · Newfields, NH

Middle Street Capital, LLC

Middle Street Capital, LLC is a fee-only investment adviser registered with the U.S. Securities and Exchange Commission, with its main office in Newfields, New Hampshire. On its latest Form ADV, filed May 1, 2026, it reports $132M in regulatory assets under management, 79 individual clients and 1 employee who gives investment advice. It reports no commission compensation, is not registered as a broker-dealer and does not act as an insurance agent.

Key facts from Form ADV

RegistrationSEC-registered
Firm CRD number226513 · SEC file 801-136408
Office67 Main Street
Newfields, NH 03856
Phone(603) 531-3773
Websitewww.middlestreetcapital.com
Regulatory assets under management$132M ($131M discretionary)
Individual clients38 non-high-net-worth, 41 high-net-worth
Financial planning clients11-25
How it chargesPercentage of assets
ServicesFinancial planning, Portfolio management
Employees1
Disciplinary disclosuresNone reported
Latest Form ADV filingMay 1, 2026

Source: the firm’s Form ADV Part 1A as published by the SEC’s Investment Adviser Public Disclosure database, data as of November 6, 2026. Figures are self-reported by the firm.

What this means for you

  • It charges only as a percentage of the assets it manages. Ask about the fee schedule and any account minimum, which Form ADV Part 1 does not record.
  • Most of its individual clients are high-net-worth, which on Form ADV means they meet the SEC’s qualified-client or qualified-purchaser test: broadly, more than $1 million managed by the adviser or a net worth above $2 million, with the thresholds indexed for inflation.
  • It provides financial planning services, not only portfolio management.
  • It reports no disciplinary history on Form ADV.

Before you hire any adviser

Read the firm’s Form ADV Part 2 brochure on its SEC record: it sets out fees, minimums, conflicts of interest and who will manage your money. Ask whether the firm acts as a fiduciary for all of your accounts, how it is paid in total, and who holds your assets. Our guide to choosing a financial adviser lists the questions to ask.

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