Investor Profile - MO
William Eckelkamp
William Eckelkamp is a real estate investor and operator based in St. Louis, MO-IL. Public filings show activity across 181 properties held through 30 holding companies. Recent mortgage relationships include Phelps County Bank, Bank of Washington, and First State Community Bank.
William's Activity
As of June 2026, public records show approximately $61.5M in recorded mortgage exposure linked to this investor across at least 91 mortgage filings and 181 properties held through 30 holding companies. Activity appears concentrated in residential and vacant assets recorded between 2017 and 2026.
Associated People
Primary Geography
St. Louis, MO-IL
ZIP codes: 63055, 63084, 65401, 63090, and 63357
Most activity in LABADIE, UNION, ROLLA, WASHINGTON, and MARTHASVILLE.
Property Type Breakdown
Associated Entities (30)
MO · 18 properties · 18 mortgages
MO · 15 properties · 15 mortgages
+28 more entities not shown
Mortgages (91)
Top Lenders
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 05/21/2026 | $765k | Open | Legends Bank | MARITZ DEVELOPMENT LLC | - |
| 05/06/2026 | $96k | Open | Altabank | JLH CHAP LLC | 520 KITCHELL AVE, SAINT CLAIR, MO 63077 |
+89 more not shown
Owned Properties (181)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 520 KITCHELL AVE, SAINT CLAIR, MO 63077 | JLH CHAP LLC | Owns - 1 mo | $128k |
| 2000 5TH ST, WASHINGTON, MO 63090 | C KEG ENTERPRISES LLC | Owns - 4 mos | $517k |
+179 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in residential, vacant, and commercial properties across St. Louis, MO-IL.
What companies is William Eckelkamp associated with?
William Eckelkamp is associated with 30 entities based on extracted signatures from public records. Key entities include MARITZ DEVELOPMENT LLC, MARITZ BM LLC, MARITZ LAKE LLC, PATKE PROPERTIES LLC, and MARITZ ESTATES LLC.
How many properties are associated with this investor?
At least 181 properties are associated with William Eckelkamp and the entities they control, based on signatures extracted from recorded documents connecting William Eckelkamp to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references Phelps County Bank, Bank of Washington, and First State Community Bank, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2017 through 2026, with the most recent mortgage recorded in 2026.
How is associated activity determined?
Elementix uses AI to extract signatures from recorded documents. These signatures are used to determine the relationships between people and entities. This is a novel approach that goes beyond looking at corporate filings and skip-tracing.
The information displayed on this page is compiled from recorded real estate documents, business filings, and other lawfully available sources. Elementix summarizes and analyzes public record activity related to investment real estate and associated business entities. Any contact indicators shown (such as email domain references or partial phone digits) are provided solely as unverified signals and may be incomplete or outdated.
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