Harrington Investments provides financial planning, portfolio management for individuals and small businesses, and portfolio management for institutions. Financial planning was provided to 1–10 clients last fiscal year.
Harrington Investments reports 115 clients. They include 79 high-net-worth individuals, 21 individual clients and 15 charitable organizations. Of its assets, 99.9% ($374M across 215 accounts) are managed with discretion; $546K across 1 account is not.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 18% | 3% |
| High-net-worth individuals | 69% | 75% |
| Charitable organizations | 13% | 18% |
| Corporations and other businesses | Fewer than 5 | 5% |
Client shares use reported counts. Client types without a reported count are excluded from that total.
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 21 | $11.8M | 3.1% | $561K |
| High-net-worth individuals | 79 | $280M | 74.6% | $3.54M |
| Charitable organizations | 15 | $65.8M | 17.6% | $4.39M |
| Corporations and other businesses | Fewer than 5 | $17.6M | 4.7% | — |
| Total | 115 | $375M | 100% | — |
- Clients
- 21
- Regulatory AUM
- $11.8M
- AUM share
- 3.1%
- Avg. per client
- $561K
- Clients
- 79
- Regulatory AUM
- $280M
- AUM share
- 74.6%
- Avg. per client
- $3.54M
- Clients
- 15
- Regulatory AUM
- $65.8M
- AUM share
- 17.6%
- Avg. per client
- $4.39M
- Clients
- Fewer than 5
- Regulatory AUM
- $17.6M
- AUM share
- 4.7%
- Avg. per client
- —
Total
- Clients
- 115
- Regulatory AUM
- $375M
- AUM share
- 100%
- Avg. per client
- —
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 1–10
Harrington Investments is paid through a percentage of assets under management and hourly charges. The reviewed brochures do not disclose an asset-based fee rate. Read the SEC-filed brochure. The brochure also prices one other service, listed under fee details.
Fee details and sources
Other fees
- Financial Planning and Investment Consulting
- Financial planning and investment consulting are offered on an hourly basis at $250 an hour, with no minimum portfolio size.
John Harrington owns 50% to 75% of Harrington Investments. The leadership team of Harrington Investments includes President John Harrington and Chief Compliance Officer Jeffrey Field. It has 5 employees, 3 of them in advisory roles.
Leadership
- John HarringtonPresident / CEO
- Diana HarringtonVice President
- Jeffrey FieldChief Compliance Officer
Investment adviser representatives
3 representatives listed in the SEC register as of 9 October 2026.
- Jeffrey Earl Field
- John Charles Harrington
- Rebecca Anne White
Staff
- 5 employees
- 3 in advisory functions
- 3 state-registered reps
- Owns 50% to 75% of Harrington Investments, Incorporated
John Harrington
Control person · since July 1987
- Owns 50% to 75% of Harrington Investments, Incorporated
Diana Harrington
Control person · since July 1987
Harrington Investments’ regulatory assets grew from $277M (June 2021) to $375M (September 2026); clients were 115 in both filings and employees were 5 in both filings.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| September 2026 | $375M | 115 | 5 | 1 |
| September 2025 | $355M | 117 | 5 | 1 |
| September 2024 | $338M | 118 | 5 | 1 |
| September 2023 | $317M | 123 | 5 | 1 |
| September 2022 | $298M | 124 | 5 | 1 |
| October 2021 | $329M | 118 | 5 | 1 |
| June 2021 | $277M | 115 | 5 | 1 |
Besides its headquarters, Harrington Investments has 0 offices, with 1 listed address in California.
California · 1 listed address
- 1001 Second Street, Suite 325, NapaHQ
Contact and registration details
- Legal name
- Harrington Investments, Incorporated
- Headquarters
- 1001 Second Street, Suite 325, Napa, CA 94559-3030
- Website
- harringtoninvestments.com
- Phone
- 707-252-6166
- @harrington-investments
- SEC file
- 801-17932
- Founded
- 1982
- Structure
- California corporation
- Fiscal year end
- June
Harrington Investments uses Charles Schwab ($375M) as custodian for its separately managed accounts. Harrington Investments has custody of $9.72M in client assets for 36 clients.
- Charles SchwabCharles Schwab & Co., Inc. · San Francisco, CA · $375M100%
At year end, Harrington Investments’ separately managed accounts were mostly in stocks (55%) and bonds (21%). Its reported 13F holdings for the quarter ended 30 June 2026 total $206M across 82 positions; the largest are Apple Inc. (8.1%), Alphabet Inc. (4.9%) and Microsoft Corp. (4.8%).
What the accounts hold
- Stocks55%
- Funds14%
- Bonds21%
- U.S. government and agency bonds11%
- Investment grade corporate bonds7%
- State and local bonds2%
- High-yield corporate bonds1%
- Cash10%
Reported 13F holdings
- $206M
- Reported 13F value
- 82
- Positions
- 39.8%
- In the 10 largest
- +8.7%
- Value vs. prior quarter
- Apple Inc.8.1%
- Alphabet Inc. · Cap Stk CL A4.9%
- Microsoft Corp.4.8%
- Intel Corp.4.7%
- Alphabet Inc. · Cap Stk CL C4.3%
- Amazon Com Inc.2.9%
- Advanced Micro Devices Inc.2.7%
- Oracle Corp.2.5%
- Schwab Charles Corp.2.5%
- Thermo Fisher Scientific Inc.2.3%
Together, the ten largest are 39.8% of reported value.
How many clients does Harrington Investments have?
Harrington Investments has 115 clients and manages $375 million for them, as of September 2026. They include 79 high-net-worth individuals, 21 individual clients and 15 charitable organizations.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 22 September 2026
What services does Harrington Investments offer?
Harrington Investments provides financial planning, portfolio management for individuals and small businesses, and portfolio management for institutions.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file
Which custodians does Harrington Investments use?
Harrington Investments’ separately managed account assets are held at Charles Schwab & Co., Inc. (San Francisco, CA), with $375M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 22 September 2026
How many financial advisors does Harrington Investments have?
Harrington Investments has 3 investment adviser representatives registered with state securities authorities, out of 5 employees, and 3 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Harrington Investments invest in?
At the end of its last fiscal year, Harrington Investments’ separately managed accounts held 55% exchange-traded equities, 14% registered funds (mutual funds, ETFs, BDCs), 11% U.S. government and agency bonds, 10% cash and equivalents, 7% investment grade corporate bonds, 2% state and local bonds and 1% high-yield corporate bonds.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Harrington Investments?
Harrington Investments’ direct owners are John Harrington (50% to 75%) and Diana Harrington (50% to 75%).
Source: Form ADV Part 1A, Schedules A and B, filed 22 September 2026
How does Harrington Investments get paid?
Harrington Investments is paid through a percentage of assets under management and hourly charges. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
Is Harrington Investments registered with the SEC?
Yes, Harrington Investments has been registered with the SEC as an investment adviser since 24 November 1982. Its CRD number is 110790 and its SEC file number is 801-17932.
Source: Form ADV Part 1A, Item 1, filed 22 September 2026; IAPD firm record
How do I contact Harrington Investments?
Harrington Investments’ main office is at 1001 Second Street, Suite 325, Napa, CA 94559-3030. Its phone number is 707-252-6166. Its website is harringtoninvestments.com.