![Mark R. Johnson](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>)
Mark R. Johnson
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Process Industries
Profile
Mark R.
Johnson worked as the Chief Financial Officer at Castellum, Inc.
Former positions of Mark R. Johnson
| Companies | Position | End |
|---|---|---|
| CASTELLUM, INC. | Director of Finance/CFO | 26/05/2017 |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Linked companies
| Private companies | 1 |
|---|---|
Castellum, Inc.
 Castellum, Inc. Chemicals: Major DiversifiedProcess Industries Develops water treatment and sanitization technologies | Process Industries |
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