# John Piper

> John Piper is a fee-only financial advisor at Great Diamond Partners in Portland, Maine. Great Diamond Partners reports charging a percentage of assets, hourly fees and fixed fees on its Form ADV.

Page: https://find.wellspent.co/advisors/john-piper/
Built from SEC adviser records; last checked October 30, 2026.

## Facts

- **Firm:** Great Diamond Partners
- **Based in:** Portland, Maine
- **Fee model (firm's Form ADV):** Percentage of assets; Hourly; Fixed fees
- **Assets under management (firm):** $804.1M across 1,736 accounts
- **CRD:** 5198426 (https://adviserinfo.sec.gov/individual/summary/5198426)
- **SEC registration:** Investment adviser representative in ME, TX
- **Exams passed:** Series 63 (2009), Series 65 (2011)
- **Firm size:** 12 employees
- **Disclosures:** None reported
- **Website:** http://www.greatdiamondpartners.com

## Frequently asked questions

### Is John Piper a fee-only financial advisor?

Yes, according to SEC records as of October 29, 2026: John holds no broker registration, and Great Diamond Partners reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency on its Form ADV.

### How does John charge for financial advice?

John's firm, Great Diamond Partners, reports charging a percentage of assets, hourly fees and fixed fees on its SEC Form ADV.

### Where is John Piper based?

John Piper is based in Portland, Maine.

### Is John Piper registered with the SEC?

Yes. John Piper is registered as an investment adviser representative in ME and TX (CRD 5198426), per SEC Investment Adviser Public Disclosure data as of October 29, 2026.

### How much does Great Diamond Partners manage?

Great Diamond Partners reports $804.1M across 1,736 accounts in assets under management.

### How do I contact John Piper?

Through John's website, www.greatdiamondpartners.com.

## Sources

- SEC adviser records (https://adviserinfo.sec.gov/individual/summary/5198426): the firm's Form ADV reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency, and the advisor holds no broker registration
- SEC Investment Adviser Public Disclosure and Form ADV: registration, exams, and firm facts, data as of October 29, 2026

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Source: Wellspent, the public graph of fee-only advisors (https://find.wellspent.co). No paid placement.