Winthrop & Co.

Top RIAs in Delaware

Every SEC-registered RIA with a main office in Delaware, by regulatory AUM, from Form ADV

38 RIAs registered with the SEC are headquartered in Delaware, the 40th most of any state, managing $314.0B in regulatory assets as of Sep 1, 2026. The largest by regulatory AUM is BlackRock Capital Management, Inc. in Wilmington at $172.6B. 8 firms report $1 billion or more.

38
SEC-registered RIAs
$314.0B
Regulatory AUM
8
Firms at $1B and above
$383.6M
Median firm AUM

Data as of Sep 1, 2026, file ia09012026-registered.zip. Retrieved Sep 10, 2026.

01 · The firms

Every SEC-registered RIA in Delaware, by regulatory AUM

The default sort is regulatory assets under management as each firm filed it, which puts asset managers and wealth managers on one list. The toggle for firms where individuals and high-net-worth individuals hold the majority of assets is what separates them, using the firm's own Form ADV Item 5.D figures.

All 38 firms, by regulatory AUM as filed.

#FirmCityRegulatory AUMAdvisory staffAccountsIndividual + HNW clientsRetail shareFiled
1BlackRock Capital Management, Inc.CRD 108069Wilmington$172.6B753191%Jul 2026
2BlackRock Capital Investment Advisors, LLCCRD 290336Wilmington$66.9B35173n.d.0%Aug 2026
3Wilmington Trust Investment Advisors, Inc.CRD 106909Wilmington$17.8B743,54060%Aug 2026
4Wilmington Funds Management CorporationCRD 105163Wilmington$16.1B341000%Mar 2026
5Brandywine Managers, LLCCRD 137388Hockessin$14.0B34200%Jul 2026
6Dupont Capital ManagementCRD 107145Wilmington$10.1B163n.d.0%Jan 2026
7Spearhead Administrative Services, LLCCRD 319289Greenville$3.8B3813n.d.0%Aug 2026
8Diversified, LLCCRD 331709Wilmington$2.8B346,5701,98295%Aug 2026
9Ashford Capital Management IncCRD 110696Wilmington$965.8M8955829%Jul 2026
10Riversedge AdvisorsCRD 298390Wilmington$928.4M91,51538289%Jul 2026
11Affinity Wealth Management LLCCRD 290735Wilmington$872.5M112,00463998%Apr 2026
12Clariti Wealth AdvisorsCRD 104804Wilmington$797.6M61,33025094%Mar 2026
13Grey Fox Wealth Advisors, LLCCRD 307172Rockland$698.8M81,30931179%Mar 2026
14Westover Capital Advisors, LLCCRD 126520Wilmington$652.9M679423886%Mar 2026
15N1 AdvisorsCRD 147048Newark$445.5M347419485%Mar 2026
16Big Investment ServicesCRD 291437Dover$425.4M41,61261798%Aug 2026
17Bdfs Capital LLCCRD 287680Rehoboth Beach$411.3M71,74375699%Jul 2026
18Long Angle Management, LLCCRD 330169Dover$404.7M459n.d.0%Mar 2026
19Realta Investment Advisors, IncCRD 134952Wilmington$385.4M541,2311,21398%Aug 2026
20Blue Rock Financial GroupCRD 298558Rehoboth Beach$381.8M579526568%Mar 2026
21Wilmington Trust Asset Management, LLCCRD 325489Wilmington$271.4M315n.d.0%Jun 2026
22Ih2 Advisors & CompanyCRD 325788Wilmington$265.3M321n.d.0%Apr 2026
23Delaware Wealth PlannersCRD 306818Wilmington$255.6M32778974%Jul 2026
24Investment Management & Planning LLCCRD 146041Greenville$238.8M373150398%Mar 2026
25Windmark Investment Partners, Inc.CRD 131880Wilmington$233.3M122n.d.0%Mar 2026
26Marvin & Palmer AssociatesCRD 105399Wilmington$195.7M47536%Mar 2026
27Donald W. Nicholson & Associates LtdCRD 107054Wilmington$171.2M435415699%Apr 2026
28Wilmington Trust Investment ManagementCRD 19396Wilmington$140.8M307474100%May 2026
29Morningside Asset ManagementCRD 268789Wilmington$135.6M4800%May 2026
30Benchmark Financial, LLCCRD 297443Wilmington$131.6M334890100%Jan 2026
31Montchanin Asset Management, LLCCRD 304367Montchanin$120.8M210060100%Mar 2026
32Back Bay Financial Planning & InvestmentsCRD 335236Bethany Beach$120.5M22869499%Aug 2026
33StratfiCRD 164744Wilmington$115.0M228687100%Aug 2026
34Third Sigma Investment Advisors LLCCRD 151188Wilmington$98.8M41304246%May 2026
35Streetbeat LLCCRD 315893Wilmington$4.9M0853853100%Mar 2026
36Cagr Finance LLCCRD 337809Lewes$31,840130100%Feb 2026
378figuresCRD 337941Dover$010100n.d.Mar 2026
38Climate Finance Partners LLCCRD 306077Wilmington$010n.d.n.d.Mar 2026

02 · By city

Where in Delaware the firms sit

Main-office city as filed. Up to the twenty-five cities with the most firms.

  • Wilmington25 · $293.0B
  • Dover3 · $830.1M
  • Greenville2 · $4.1B
  • Rehoboth Beach2 · $793.2M
  • Bethany Beach1 · $120.5M
  • Hockessin1 · $14.0B
  • Lewes1 · $32K
  • Montchanin1 · $120.8M
  • Newark1 · $445.5M
  • Rockland1 · $698.8M

03 · Questions

Questions people ask about RIAs in Delaware

How many RIAs are in Delaware?
38 RIAs registered with the SEC list a main office in Delaware in the SEC's Form ADV data as of Sep 1, 2026. That count excludes state-registered RIAs, which generally manage under $100 million and file with the state rather than the SEC, and firms whose address is suppressed on Form ADV.
What is the largest RIA in Delaware?
By regulatory assets under management as filed on Form ADV, the largest SEC-registered RIA headquartered in Delaware is BlackRock Capital Management, Inc. in Wilmington, at $172.6B. Regulatory AUM counts all assets a firm manages, so the largest filer in a state is often an asset manager rather than a wealth manager.
How many Delaware RIAs manage more than $1 billion?
8 of the 38 SEC-registered RIAs headquartered in Delaware report regulatory assets under management of $1 billion or more. The median firm in the state reports $383.6M.
Where does this data come from?
From the SEC's monthly Form ADV data file for SEC-registered investment advisers (ia09012026-registered.zip, data as of Sep 1, 2026). Each figure is as the firm itself reported it on Form ADV Item 5; the SEC does not verify it. Every row links to the firm's record on the SEC's Investment Adviser Public Disclosure site.

Definitions and source

What each column means, in the SEC's words
Regulatory assets under management Form ADV Item 5.F(2)(c)
If yes, what is the amount of your regulatory assets under management and total number of accounts? Total, discretionary plus non-discretionary.
Total accounts Form ADV Item 5.F(2)(f)
Total number of accounts, discretionary plus non-discretionary.
Employees Form ADV Item 5.A
Approximately how many employees do you have? Include full- and part-time employees but do not include any clerical workers.
Advisory employees Form ADV Item 5.B(1)
Approximately how many of the employees reported in 5.A. perform investment advisory functions (including research)?
Broker-dealer registered representatives Form ADV Item 5.B(2)
Approximately how many of the employees reported in 5.A. are registered representatives of a broker-dealer?
Individual and high-net-worth clients Form ADV Item 5.D(a), 5.D(b)
Number of clients and amount of regulatory assets under management for individuals (other than high net worth individuals) and for high net worth individuals.
Commissions Form ADV Item 5.E(5)
You are compensated for your investment advisory services by (check all that apply): (5) Commissions.
Private funds Form ADV Item 7.B
Are you an adviser to any private fund?

Source: U.S. Securities and Exchange Commission, Form ADV data, Information About Registered Investment Advisers and Exempt Reporting Advisers, file ia09012026-registered.zip (data as of Sep 1, 2026), retrieved Sep 10, 2026. Figures are as self-reported by each firm on Form ADV Item 5; the SEC does not verify them. Neither the SEC nor the state securities authorities have approved the information filed on Form ADV, and we can not guarantee its accuracy.

Winthrop & Co. is compensated by firms when an advisor joins through us. The advisor never pays. Firms on this page are listed by arithmetic on the SEC's file, not by any relationship with us, and none is ranked, labelled or recommended.