Data / Investment advisers / Maine
Investment advisers in Maine: 33 firms, $23.5 billion in AUM
33 investment advisers have their main office in Maine: 31 SEC registered and 2 exempt reporting. The registered advisers report $23.5 billion in regulatory assets under management in the SEC's Form ADV file of November 2, 2026, and the largest is R M Davis Inc with $8.2 billion.
SpecStream is the live web data engine for teams and agents. It reads the SEC's Form ADV files every month, and this page is that reading, keyed on the CRD number. Ask for the advisers you track by state, city, size, client type or private funds, and new registrations and filings arrive in your sheet, CRM, Slack or agent as the SEC publishes them.
- 33Advisers
- 31SEC registered
- 2Exempt reporting
- $23.5 billionTotal AUM
- 30Advisers over $100 million
- 5Manage private funds
- November 2, 2026File date
Largest advisers by AUM
Ranked by regulatory AUM, then by private funds. Each row links to the firm page where it has one, and to its SEC record.
| Adviser | City | AUM | Accounts | Employees | Private funds | Phone | Website | Source |
|---|---|---|---|---|---|---|---|---|
| R M Davis Inc | Portland | $8.15 billion | 6,124 | 63 | Not listed | (207) 774-0022 | rmdavis.com | adviserinfo.sec.gov |
| Greenbacker Capital Management LLC | Portland | $3.14 billion | 7 | 128 | 4 | (646) 556-6611 | adviserinfo.sec.gov | |
| Means Wealth Management | Bangor | $1.59 billion | 3,520 | 24 | 1 | (207) 947-6763 | adviserinfo.sec.gov | |
| Portland Global Advisors LLC | Portland | $1.17 billion | 1,010 | 13 | Not listed | (207) 773-2773 | portlandglobal.com | adviserinfo.sec.gov |
| Headinvest | Portland | $891.8 million | 1,107 | 13 | Not listed | (207) 773-5333 | headinvest.com | adviserinfo.sec.gov |
| Great Diamond Partners, LLC | Portland | $804.1 million | 1,736 | 12 | Not listed | (207) 274-2500 | adviserinfo.sec.gov | |
| Old Port Advisors | Portland | $782.8 million | 2,245 | 14 | Not listed | (207) 774-6552 | adviserinfo.sec.gov | |
| Fow Partners, LP | Portland | $747.3 million | 5 | 25 | 5 | (617) 752-1590 | fowpartners.com | adviserinfo.sec.gov |
| Aries Wealth Management, LLC | Portland | $658.6 million | 497 | 6 | Not listed | (207) 536-0530 | adviserinfo.sec.gov | |
| Harpswell Capital Advisors, LLC | Yarmouth | $587 million | 79 | 5 | Not listed | (207) 926-1380 | adviserinfo.sec.gov | |
| Bigelow Investment Advisors, LLC | Portland | $555.2 million | 895 | 8 | Not listed | (207) 772-2900 | adviserinfo.sec.gov | |
| Penobscot Financial Advisors | Portland | $544.5 million | 1,811 | 12 | Not listed | (207) 990-1901 | adviserinfo.sec.gov | |
| Coston, McIsaac & Shea Financial Advisors | Bar Harbor | $466.9 million | 1,254 | 12 | Not listed | (207) 288-4747 | costonshea.com | adviserinfo.sec.gov |
| Robinson Smith Wealth Advisors, LLC | South Portland | $444.9 million | 903 | 8 | Not listed | (207) 874-9840 | robinsonsmithwealth.com | adviserinfo.sec.gov |
| Choice Wealth Advisors LLC | Waterville | $323.3 million | 1,247 | 4 | Not listed | (207) 873-0996 | adviserinfo.sec.gov | |
| Birchbrook | Bangor | $296.5 million | 863 | 7 | Not listed | (207) 990-1117 | birchbrook.com | adviserinfo.sec.gov |
| RM Financial Services, LLC | Falmouth | $245.4 million | 980 | 4 | Not listed | (207) 781-7637 | rmfsllc.com | adviserinfo.sec.gov |
| Abbington Investment Group, LLC | South Portland | $202.1 million | 91 | 3 | Not listed | (207) 433-5820 | abbingtongroup.com | adviserinfo.sec.gov |
| Clark & Stuart Inc | Portland | $195.6 million | 180 | 4 | Not listed | (207) 775-1140 | clarkandstuart.com | adviserinfo.sec.gov |
| J.M. Arbour, LLC | Gardiner | $183.2 million | 1,253 | 12 | Not listed | (207) 248-6767 | adviserinfo.sec.gov | |
| Richard Brothers, Financial Advisors | South Portland | $180.6 million | 433 | 10 | Not listed | (207) 879-2352 | adviserinfo.sec.gov | |
| Outfitter Financial | Brunswick | $157.7 million | 64 | 4 | Not listed | (978) 865-3787 | adviserinfo.sec.gov | |
| GRP Retirement Planning | Farmingdale | $155.3 million | 1,972 | 16 | Not listed | (207) 622-4494 | grplans.com | adviserinfo.sec.gov |
| Maiden Cove Capital | Yarmouth | $153.7 million | 162 | 3 | Not listed | (207) 482-3840 | maidencove.com | adviserinfo.sec.gov |
| Blue Point Financial, Inc. | Scarborough | $152.7 million | 504 | 3 | Not listed | (207) 883-2009 | adviserinfo.sec.gov | |
| Eagle Financial Strategies | Bangor | $146 million | 504 | 6 | Not listed | (207) 989-5522 | eaglefinancialstrategies.com | adviserinfo.sec.gov |
| Gibson Financial Solutions, Inc. | Ellsworth | $133.7 million | 433 | 2 | Not listed | (207) 667-9993 | gibsonfinancialsolutions.com | adviserinfo.sec.gov |
| Wright Cove Capital | Portland | $120.7 million | 82 | 2 | Not listed | (207) 400-1392 | wrightcove.com | adviserinfo.sec.gov |
| Maine Advisory Associates | Falmouth | $116.5 million | 529 | 3 | Not listed | (207) 778-2250 | maineadvisory.com | adviserinfo.sec.gov |
| Oldfield Wealth Partners | Bangor | $110 million | 283 | 4 | Not listed | (207) 573-3001 | oldfieldwealth.com | adviserinfo.sec.gov |
| Guidance Point Retirement Services, LLC | Portland | $85.4 million | 8 | 8 | Not listed | (207) 358-3099 | adviserinfo.sec.gov | |
| Cei Ventures, Inc. | Brunswick | Not listed | Not listed | Not listed | 4 | (207) 504-5900 | ceiventures.com | adviserinfo.sec.gov |
| Voltage Ventures LP | Portland | Not listed | Not listed | Not listed | 1 | (401) 369-2404 | voltagevc.com | adviserinfo.sec.gov |
Advisers in Maine that manage private funds
5 advisers report private funds. The 40 with the most funds.
| Adviser | City | State | Private funds | Hedge | Private equity | Venture capital | Real estate | Fund gross assets | AUM | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| Fow Partners, LP | Portland | ME | 5 | Not listed | 5 | Not listed | Not listed | $747.3 million | $747.3 million | adviserinfo.sec.gov |
| Greenbacker Capital Management LLC | Portland | ME | 4 | Not listed | 4 | Not listed | Not listed | $305.9 million | $3.14 billion | adviserinfo.sec.gov |
| Cei Ventures, Inc. | Brunswick | ME | 4 | Not listed | Not listed | 4 | Not listed | $33.1 million | Not listed | adviserinfo.sec.gov |
| Means Wealth Management | Bangor | ME | 1 | Not listed | Not listed | Not listed | Not listed | $8.2 million | $1.59 billion | adviserinfo.sec.gov |
| Voltage Ventures LP | Portland | ME | 1 | Not listed | Not listed | 1 | Not listed | $17.8 million | Not listed | adviserinfo.sec.gov |
Cities in Maine
| City | Advisers | AUM |
|---|---|---|
| Portland | 14 | $17.85 billion |
More ways to read Maine
- Advisers in Maine with $100 million to $500 million in AUM
- Advisers in Maine serving individuals
- Advisers in Maine serving high net worth individuals
- Advisers in Maine serving pension and profit sharing plans
- Advisers in Maine serving charitable organizations
- Advisers in Maine serving corporations and other businesses
Updated November 7, 2026. Read from the SEC's Form ADV data files for investment advisers. Public data published by the US Securities and Exchange Commission (US government work). Advisers report these values themselves in Form ADV, and neither the SEC nor the states approve or guarantee them. AUM is regulatory assets under management as the adviser reported it in Form ADV item 5.F, which can differ from the AUM a firm quotes elsewhere. Exempt reporting advisers do not report AUM. Office address, phone and website are the adviser's main office as filed; a firm that files its main office as a private residence shows no street address or phone. An Item 11 disclosure is a reported event, not a finding about the firm today. Details for each firm are on the SEC's Investment Adviser Public Disclosure site. This page uses SEC data and is not endorsed or certified by the SEC. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.