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Top RIA Firms in Maine
Explore the top 25 Registered investment advisers, single family offices, multi-family offices and private wealth management firms headquartered in Maine. This hub covers 32 matching firms with $32.6B in total reported AUM and median AUM of $309.9M.
Firms
32
Matching current profiles
Total AUM
$32.6B
Reported regulatory AUM
Median AUM
$309.9M
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
| Firm | Location | Current AUM↓ | 1YR AUM↕ | 3YR AUM↕ | 5YR AUM↕ | Total AUM↕ | Employee Signal↕ | Account 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. Means Wealth Management CRD 2748 · Corporation | BANGOR, ME | $1.6B Mar 2026 | +$617.6M+63.2% | +$734.3M+85.4% | +$1.2B+275.0% | +$1.5B+1237.6% | +6 employees+33.3% over 3Y | +996 accounts+39.5% over 3Y |
| 5. 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 |
| 6. 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 |
| 7. 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 |
| 8. 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 |
| 9. 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 1Y | 0 accounts+0.0% over 1Y |
| 10. 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 |
| 11. Harpswell Capital Advisors, LLC CRD 168996 · Limited Liability Company | YARMOUTH, ME | $587.0M May 2026 | +$89.6M+18.0% | +$185.6M+46.2% | +$346.1M+143.7% | — | -1 employees-16.7% over 3Y | -52 accounts-39.7% over 3Y |
| 12. 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 |
| 13. 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 |
| 14. Coston, Mcisaac & Shea Financial Advisors CRD 194515 · Corporation | BAR HARBOR, ME | $466.9M May 2026 | +$61.2M+15.1% | +$174.9M+59.9% | +$276.8M+145.6% | — | +2 employees+20.0% over 3Y | -47 accounts-3.6% over 3Y |
| 15. Robinson Smith Wealth Advisors, LLC CRD 123098 · Limited Liability Company | SOUTH PORTLAND, ME | $444.9M Feb 2026 | +$110.6M+33.1% | +$52.7M+13.4% | +$143.7M+47.7% | +$331.6M+292.7% | 0 employees+0.0% over 3Y | +56 accounts+6.6% over 3Y |
| 16. Choice Wealth Advisors LLC CRD 297745 · Limited Liability Company | WATERVILLE, ME | $323.3M Feb 2026 | +$29.6M+10.1% | +$66.5M+25.9% | +$171.8M+113.4% | — | 0 employees+0.0% over 3Y | +74 accounts+6.3% over 3Y |
| 17. Birchbrook CRD 105164 · Corporation | BANGOR, ME | $296.5M Apr 2026 | +$37.5M+14.5% | +$82.8M+38.8% | +$85.0M+40.2% | +$156.2M+111.4% | 0 employees+0.0% over 3Y | +58 accounts+7.2% over 3Y |
| 18. Rm Financial Services, LLC CRD 304297 · Limited Liability Company | FALMOUTH, ME | $245.4M Mar 2026 | +$37.6M+18.1% | +$73.0M+42.4% | +$119.9M+95.5% | +$119.9M+95.5% | -2 employees-33.3% over 3Y | +108 accounts+12.4% over 3Y |
| 19. Abbington Investment Group, LLC CRD 174407 · Limited Liability Company | SOUTH PORTLAND, ME | $202.1M Mar 2026 | +$79.2M+64.4% | +$190.5M+1643.5% | +$190.5M+1643.5% | +$190.5M+1643.5% | +1 employees+50.0% over 3Y | +54 accounts+145.9% over 3Y |
| 20. 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 |
| 21. J.m. Arbour, LLC CRD 313352 · Limited Liability Company | GARDINER, ME | $183.2M Mar 2026 | +$29.2M+18.9% | +$90.2M+97.1% | — | — | +4 employees+50.0% over 3Y | +213 accounts+20.5% over 3Y |
| 22. Richard Brothers, Financial Advisors CRD 113826 · Corporation | SOUTH PORTLAND, ME | $180.6M Mar 2026 | +$34.7M+23.8% | +$35.3M+24.3% | +$111.3M+160.5% | +$75.1M+71.1% | +2 employees+25.0% over 3Y | -181 accounts-29.5% over 3Y |
| 23. Outfitter Financial CRD 291413 · Limited Liability Company | BRUNSWICK, ME | $157.7M Mar 2026 | +$825.2K+0.5% | +$18.3M+13.1% | +$16.8M+11.9% | — | +1 employees+33.3% over 3Y | -74 accounts-53.6% over 3Y |
| 24. Grp Financial Services, LLC CRD 333183 · Limited Liability Company | FARMINGDALE, ME | $155.3M Jan 2026 | — | — | — | — | +3 employees+23.1% over 1Y | — |
| 25. Maiden Cove Capital CRD 312478 · Limited Liability Company | YARMOUTH, ME | $153.7M Mar 2026 | +$43.8M+39.9% | — | — | +$43.8M+39.9% | +2 employees+200.0% over 1Y | +16 accounts+11.0% over 1Y |
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.