Rialytix insights

Top RIA Firms in Portland, Maine

Explore the top 25 Registered investment advisers, single family offices, multi-family offices and private wealth management firms headquartered in Portland, Maine. This hub covers 14 matching firms with $26.9B in total reported AUM and median AUM of $765.1M.

Firms

14

Matching current profiles

Total AUM

$26.9B

Reported regulatory AUM

Median AUM

$765.1M

Across firms with AUM

Largest firm

$9.1B

H.m. Payson

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Top RIAs discovered by AUM

Compare RIAs using AUM growth, employee and account signals

FirmLocationCurrent AUM1YR AUM3YR AUM5YR AUMTotal AUMEmployee SignalAccount Signal
1. H.m. Payson
CRD 2993 · Corporation
PORTLAND, ME$9.1B
Mar 2026
+$959.4M+11.8%+$2.9B+47.0%+$3.9B+75.2%+$7.4B+430.7%+2 employees+6.3% over 3Y+584 accounts+15.7% over 3Y
2. R M Davis INC
CRD 105448 · Corporation
PORTLAND, ME$8.2B
Mar 2026
+$887.3M+12.2%+$2.4B+41.6%+$2.8B+51.6%+$6.0B+273.9%+8 employees+14.5% over 3Y+525 accounts+9.4% over 3Y
3. Greenbacker Capital Management LLC
CRD 277101 · Limited Liability Company
PORTLAND, ME$3.1B
Mar 2026
-$664.0M-17.5%+$1.2B+59.0%+$2.7B+631.0%+$3.1B+10711.6%-26 employees-16.9% over 3Y+4 accounts+133.3% over 3Y
4. Portland Global Advisors LLC
CRD 109127 · Limited Liability Company
PORTLAND, ME$1.2B
Mar 2026
+$280.2M+31.3%+$309.3M+35.7%+$494.5M+72.7%+$809.3M+221.5%+3 employees+30.0% over 3Y+310 accounts+44.3% over 3Y
5. Headinvest
CRD 140518 · Limited Liability Company
PORTLAND, ME$891.8M
Mar 2026
-$77.8M-8.0%+$8.6M+1.0%+$211.7M+31.1%+$374.8M+72.5%-2 employees-13.3% over 3Y+83 accounts+8.1% over 3Y
6. Great Diamond Partners, LLC
CRD 299598 · Limited Liability Company
PORTLAND, ME$804.1M
Apr 2026
+$190.7M+31.1%+$263.3M+48.7%+$252.9M+45.9%+3 employees+33.3% over 3Y+261 accounts+17.7% over 3Y
7. Old Port Advisors
CRD 108228 · Corporation
PORTLAND, ME$782.8M
May 2026
+$36.4M+4.9%+$131.8M+20.2%-$127.8M-14.0%+$634.8M+428.9%+1 employees+7.7% over 3Y+32 accounts+1.4% over 3Y
8. Fow Partners, LP
CRD 329051 · Limited Partnership
PORTLAND, ME$747.3M
Mar 2026
+$66.4M+9.8%+$135.3M+22.1%+6 employees+31.6% over 1Y0 accounts+0.0% over 1Y
9. Aries Wealth Management, LLC
CRD 175477 · Limited Liability Company
PORTLAND, ME$658.6M
Mar 2026
+$127.9M+24.1%+$297.1M+82.2%+$367.1M+125.9%+1 employees+20.0% over 3Y+11 accounts+2.3% over 3Y
10. Bigelow Investment Advisors, LLC
CRD 143733 · Limited Liability Company
PORTLAND, ME$555.2M
May 2026
+$79.0M+16.6%+$171.3M+44.6%+$185.4M+50.1%+$447.5M+415.5%+3 employees+60.0% over 3Y+95 accounts+11.9% over 3Y
11. Penobscot Financial Advisors
CRD 286211 · Corporation
PORTLAND, ME$544.5M
Apr 2026
+$110.0M+25.3%+$214.0M+64.7%+$315.3M+137.6%+4 employees+50.0% over 3Y-242 accounts-11.8% over 3Y
12. Clark & Stuart INC
CRD 107991 · Corporation
PORTLAND, ME$195.6M
Mar 2026
+$25.8M+15.2%+$36.9M+23.2%+$69.1M+54.6%+$139.7M+249.7%+2 employees+100.0% over 3Y+4 accounts+2.3% over 3Y
13. Wright Cove Capital
CRD 307252 · Limited Liability Company
PORTLAND, ME$120.7M
Jan 2026
+$20.1M+19.9%0 employees+0.0% over Total-32 accounts-28.1% over Total
14. Guidance Point Retirement Services, LLC
CRD 161000 · Limited Liability Company
PORTLAND, ME$88.2M
May 2026
+$25.3M+40.3%+$25.5M+40.6%+$10.8M+13.9%+1 employees+14.3% over 3Y-1 accounts-11.1% over 3Y

Methodology

Top firms are ranked by their current AUM values. Growth $ and % values compare current reported AUM, employee count, and account counts against the latest historical filing on or before the 1 year, 3 year, and 5 year lookback dates, plus the earliest available historical filing for total growth. Metrics may show a dash where historical filings are unavailable or not reliable enough for the lookback period. This is not investment advice.