![Louis Maltezos](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>)
Louis Maltezos
President at
AMERESCO, INC.
Net worth: 696 436 $ as of 2026-09-29
Profile
Louis P.
Maltezos is currently Chief Executive Officer at Ameresco Canada, Inc. since 2015 and Co-President at Ameresco, Inc. since 2026.
Formerly, Mr. Maltezos was Director at the National Association of Energy Service Cos.
and Vice President & General Manager-ESPC Business at Exelon Corp.
in 2004.
Education includes an MBA from Kellogg School of Management.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-09-14 | 33,628 ( 0.1% ) | 696 436 $ | 2026-09-29 |
Louis Maltezos active positions
| Companies | Position | Start |
|---|---|---|
| AMERESCO, INC. | President | 2026-03-31 |
Ameresco Canada, Inc.
 Ameresco Canada, Inc. Miscellaneous Commercial ServicesCommercial Services Provides energy utility services and energy management solutions | Chief Executive Officer | 2015-08-31 |
Former positions of Louis Maltezos
| Companies | Position | End |
|---|---|---|
| EXELON CORPORATION | Corporate Officer/Principal | 2003-12-31 |
National Association of Energy Service Cos.
 National Association of Energy Service Cos. Miscellaneous Commercial ServicesCommercial Services Engages in promoting, developing and advocating for central role of energy efficiency | Director/Board Member | - |
Education of Louis Maltezos
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
58
1st degree connections
6
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 6 |
|---|---|
Exelon Corp.
 Exelon Corp. Electric UtilitiesUtilities Functions as a holding company whose subsidiaries provides energy transmission and distribution services | Utilities |
Ameresco, Inc.
 Ameresco, Inc. Engineering & ConstructionIndustrial Services Provides energy utility services and management solutions | Industrial Services |
Ameresco Canada, Inc.
Ameresco Canada, Inc. Miscellaneous Commercial ServicesCommercial Services Provides energy utility services and energy management solutions | Commercial Services |
University of Illinois
 University of Illinois Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
National Association of Energy Service Cos.
National Association of Energy Service Cos. Miscellaneous Commercial ServicesCommercial Services Engages in promoting, developing and advocating for central role of energy efficiency | Commercial Services |
Kellogg School of Management
 Kellogg School of Management Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
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