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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.

AdviserCityAUMAccountsEmployeesPrivate fundsPhoneWebsiteSource
R M Davis IncPortland$8.15 billion6,12463Not listed(207) 774-0022rmdavis.comadviserinfo.sec.gov
Greenbacker Capital Management LLCPortland$3.14 billion71284(646) 556-6611adviserinfo.sec.gov
Means Wealth ManagementBangor$1.59 billion3,520241(207) 947-6763adviserinfo.sec.gov
Portland Global Advisors LLCPortland$1.17 billion1,01013Not listed(207) 773-2773portlandglobal.comadviserinfo.sec.gov
HeadinvestPortland$891.8 million1,10713Not listed(207) 773-5333headinvest.comadviserinfo.sec.gov
Great Diamond Partners, LLCPortland$804.1 million1,73612Not listed(207) 274-2500adviserinfo.sec.gov
Old Port AdvisorsPortland$782.8 million2,24514Not listed(207) 774-6552adviserinfo.sec.gov
Fow Partners, LPPortland$747.3 million5255(617) 752-1590fowpartners.comadviserinfo.sec.gov
Aries Wealth Management, LLCPortland$658.6 million4976Not listed(207) 536-0530adviserinfo.sec.gov
Harpswell Capital Advisors, LLCYarmouth$587 million795Not listed(207) 926-1380adviserinfo.sec.gov
Bigelow Investment Advisors, LLCPortland$555.2 million8958Not listed(207) 772-2900adviserinfo.sec.gov
Penobscot Financial AdvisorsPortland$544.5 million1,81112Not listed(207) 990-1901adviserinfo.sec.gov
Coston, McIsaac & Shea Financial AdvisorsBar Harbor$466.9 million1,25412Not listed(207) 288-4747costonshea.comadviserinfo.sec.gov
Robinson Smith Wealth Advisors, LLCSouth Portland$444.9 million9038Not listed(207) 874-9840robinsonsmithwealth.comadviserinfo.sec.gov
Choice Wealth Advisors LLCWaterville$323.3 million1,2474Not listed(207) 873-0996adviserinfo.sec.gov
BirchbrookBangor$296.5 million8637Not listed(207) 990-1117birchbrook.comadviserinfo.sec.gov
RM Financial Services, LLCFalmouth$245.4 million9804Not listed(207) 781-7637rmfsllc.comadviserinfo.sec.gov
Abbington Investment Group, LLCSouth Portland$202.1 million913Not listed(207) 433-5820abbingtongroup.comadviserinfo.sec.gov
Clark & Stuart IncPortland$195.6 million1804Not listed(207) 775-1140clarkandstuart.comadviserinfo.sec.gov
J.M. Arbour, LLCGardiner$183.2 million1,25312Not listed(207) 248-6767adviserinfo.sec.gov
Richard Brothers, Financial AdvisorsSouth Portland$180.6 million43310Not listed(207) 879-2352adviserinfo.sec.gov
Outfitter FinancialBrunswick$157.7 million644Not listed(978) 865-3787adviserinfo.sec.gov
GRP Retirement PlanningFarmingdale$155.3 million1,97216Not listed(207) 622-4494grplans.comadviserinfo.sec.gov
Maiden Cove CapitalYarmouth$153.7 million1623Not listed(207) 482-3840maidencove.comadviserinfo.sec.gov
Blue Point Financial, Inc.Scarborough$152.7 million5043Not listed(207) 883-2009adviserinfo.sec.gov
Eagle Financial StrategiesBangor$146 million5046Not listed(207) 989-5522eaglefinancialstrategies.comadviserinfo.sec.gov
Gibson Financial Solutions, Inc.Ellsworth$133.7 million4332Not listed(207) 667-9993gibsonfinancialsolutions.comadviserinfo.sec.gov
Wright Cove CapitalPortland$120.7 million822Not listed(207) 400-1392wrightcove.comadviserinfo.sec.gov
Maine Advisory AssociatesFalmouth$116.5 million5293Not listed(207) 778-2250maineadvisory.comadviserinfo.sec.gov
Oldfield Wealth PartnersBangor$110 million2834Not listed(207) 573-3001oldfieldwealth.comadviserinfo.sec.gov
Guidance Point Retirement Services, LLCPortland$85.4 million88Not listed(207) 358-3099adviserinfo.sec.gov
Cei Ventures, Inc.BrunswickNot listedNot listedNot listed4(207) 504-5900ceiventures.comadviserinfo.sec.gov
Voltage Ventures LPPortlandNot listedNot listedNot listed1(401) 369-2404voltagevc.comadviserinfo.sec.gov

Advisers in Maine that manage private funds

5 advisers report private funds. The 40 with the most funds.

AdviserCityStatePrivate fundsHedgePrivate equityVenture capitalReal estateFund gross assetsAUMSource
Fow Partners, LPPortlandME5Not listed5Not listedNot listed$747.3 million$747.3 millionadviserinfo.sec.gov
Greenbacker Capital Management LLCPortlandME4Not listed4Not listedNot listed$305.9 million$3.14 billionadviserinfo.sec.gov
Cei Ventures, Inc.BrunswickME4Not listedNot listed4Not listed$33.1 millionNot listedadviserinfo.sec.gov
Means Wealth ManagementBangorME1Not listedNot listedNot listedNot listed$8.2 million$1.59 billionadviserinfo.sec.gov
Voltage Ventures LPPortlandME1Not listedNot listed1Not listed$17.8 millionNot listedadviserinfo.sec.gov

Cities in Maine

CityAdvisersAUM
Portland14$17.85 billion

More ways to read Maine

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.