![Michael Grandis](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>)
Michael Grandis
Chief Administrative Officer at
TANTALUS SYSTEMS HOLDING INC.
Net worth: 308 636 $ as of 29/06/2026
Profile
Michael Grandis is Secretary, Chief Legal & Administrative Officer at Tantalus Systems Holding, Inc. since 2021.
Formerly, Mr. Grandis was a Partner at Loeb & Loeb LLP from 2013 to 2018 and a Member of the Columbia Business Law Review at Columbia Law School.
Education includes undergraduate studies at Georgetown University and graduate studies at Columbia Law School.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 19/03/2026 | 80,374 ( 0.14% ) | 308 636 $ | 29/06/2026 |
Michael Grandis active positions
| Companies | Position | Start |
|---|---|---|
| TANTALUS SYSTEMS HOLDING INC. | Chief Administrative Officer | 28/01/2021 |
Former positions of Michael Grandis
| Companies | Position | End |
|---|---|---|
Loeb & Loeb LLP
 Loeb & Loeb LLP Miscellaneous Commercial ServicesCommercial Services Provides legal services in the areas of entertainment and media technology | Corporate Officer/Principal | 30/04/2018 |
Columbia Law School
 Columbia Law School Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | - |
Training of Michael Grandis
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
4
1st degree connections
4
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 4 |
|---|---|
Georgetown University
 Georgetown University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Loeb & Loeb LLP
Loeb & Loeb LLP Miscellaneous Commercial ServicesCommercial Services Provides legal services in the areas of entertainment and media technology | Commercial Services |
Columbia Law School
Columbia Law School Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
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 |
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