![Douglass Campbell](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Net worth: 3 M $ as of 2026-07-30
Douglass Campbell currently works at Tantalus Systems Holding, Inc., as Chief Solution Officer from 2022.
Mr. Campbell also formerly worked at Advanced Logical Solutions, Inc., as Director & Chief Technology Officer and White Computers Ltd., as Vice President-Sales & Marketing.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2025-12-22 | 765,915 ( 1.36% ) | 3 M $ | 2026-07-30 |
| Companies | Position | Start |
|---|---|---|
| TANTALUS SYSTEMS HOLDING INC. | Corporate Officer/Principal | 2022-06-30 |
| Companies | Position | End |
|---|---|---|
White Computers Ltd. | Sales & Marketing | - |
Advanced Logical Solutions, Inc. | Chief Tech/Sci/R&D Officer | - |
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| Private companies | 3 |
|---|---|
Tantalus Systems Holding, Inc.
 Tantalus Systems Holding, Inc. Engineering & ConstructionIndustrial Services Provides smart grid communications solutions for advanced metering, demand response and distribution automation | Industrial Services |
White Computers Ltd. | |
Advanced Logical Solutions, Inc. |
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