Broker-dealer firm · Mount Vernon, OH
Lincoln Douglas Investments, LLC
SEC-registered investment adviser · CRD 155578 · SEC 801-135884
At a glance
Lincoln Douglas Investments, LLC is an SEC-registered investment adviser based in Mount Vernon, Ohio, with $131 million in regulatory assets under management as of its Form ADV filed March 24, 2026. Its largest client group by assets is individuals, and it reports 246 individual clients. By Form ADV it is a broker-dealer firm, ranked 321st of 391 broker-dealer firms and 14,340th of 17,210 SEC-registered advisers by assets.
Main office 740-397-1397lincolndouglasinvestments.netLinkedInAs filed on Form ADV
- Regulatory AUM
- $131M
- Rank among broker-dealer firms
- #321 of 391
- Rank among all SEC RIAs
- #14,340 of 17,210
- Rank in Ohio
- #355 of 403
- Individual clients
- 246
- High-net-worth clients
- 0
- Accounts
- 246
- Discretionary
- 95% of AUM
- Employees
- 27
- Advisory staff
- 8
- Offices
- 2
Owners and executives on its Form ADV
- Kenneth Earl DennisCEO
- Douglas Marr MansfieldGeneral Counsel, Corporate Secretary
- Brandon Lee BullockCFO, Finop
- Brian Eugene MohneyChief Compliance Officer / Amlco
Custody and brokerage
Broker-dealer
Hybrid RIA
Lincoln Douglas Investments, LLC is a hybrid RIA: 27 of its employees are also registered representatives of a broker-dealer. It names an affiliated broker-dealer: Lincoln Douglas Investments, LLC.
- Lincoln Douglas Investments, LLC
Its Form ADV brochure (filed March 2026) names Lincoln Douglas Investments as the broker-dealer its advisers are registered with.
LDI’s employees and persons associated with LDI are required to follow LDI’s Code of Ethics.
Who it serves
| Client type | Clients | Regulatory AUM | Share |
|---|---|---|---|
| Individuals | 246 | $131M | 100% |
Disciplinary disclosures
Lincoln Douglas Investments, LLC answers yes to 1 disclosure item in Item 11 of Form ADV (criminal, regulatory or civil matters involving the firm or its advisory affiliates). Read the details on the SEC’s adviser search ↗
Services
- Financial planning
- Portfolio management for individuals and small businesses
How it’s paid
- A percentage of assets under management
- Hourly charges
- Fixed fees
Form ADV and brochures on the SEC’s adviser search ↗lincolndouglasinvestments.net ↗
AtlasMembers
The full record on Lincoln Douglas Investments, LLC
Ten years of SEC filings, its owners and contacts, and how it stacks up against its peers. Atlas members see all of it.
- Assets, accounts, clients and staff, 1 years of filings
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- Growth over one, three and five years
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- Rank against 122 peers of its type and size
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- Owners and executives, with titles and stakes
- 4 namedLocked
- Main office, fax and compliance officer
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- Filing changes this year, with alerts
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Background
Questions
How much does Lincoln Douglas Investments, LLC manage?
Lincoln Douglas Investments, LLC reports $131 million in regulatory assets under management across 246 accounts, 95% of it on a discretionary basis, on its Form ADV filed March 24, 2026.
What kind of firm is Lincoln Douglas Investments, LLC?
Lincoln Douglas Investments, LLC is a broker-dealer firm by its Form ADV answers. The firm is itself registered as a broker-dealer as well as an investment adviser.
Who are Lincoln Douglas Investments, LLC’s clients?
By assets, its largest client types are individuals ($131 million, 246 clients).
Does Lincoln Douglas Investments, LLC have any disciplinary history?
Lincoln Douglas Investments, LLC answers yes to 1 disclosure item in Item 11 of Form ADV, which covers criminal, regulatory and civil matters involving the firm or its advisory affiliates. The details are on the SEC’s adviser search.
Where these numbers come from
Every figure is Lincoln Douglas Investments, LLC’s own answer on its latest Form ADV, from the SEC’s registered-adviser list as of October 1, 2026: regulatory assets and accounts (Item 5.F), clients by type (5.D), employees (5.A and 5.B), compensation (5.E) and services (5.G). Custodians come from Schedule D 5.K(3) of its latest filing (2026-03-24), which lists those holding 10% or more of separately managed account assets and the amount at each. “Hybrid” means some employees are also registered representatives of a broker-dealer (Item 5.B(2)); affiliated broker-dealers are the related persons it lists in Item 7.A and Schedule D. Firm type comes from its own answers: broker-dealer firms are registered broker-dealers themselves (Item 6.A); private fund advisers manage mostly private funds (Item 7.B, 5.D); wealth managers manage at least half their assets for individuals (5.D). Ranks compare it by regulatory assets with every SEC-registered adviser and with firms of its type. Figures are as of the firm’s last annual update, so they can lag recent deals and market moves. Regulatory AUM counts assets the firm continuously supervises and can differ from what a firm markets.
Not an endorsement or a recommendation. Before hiring any adviser, read its Form ADV Part 2A brochure and check its record on the SEC’s adviser search. How to check a financial advisor →