---
title: "Ameresco, Inc. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/57e1ed65-e0a0-5f3e-b0c4-c7c577e9dcc0
json: https://whiteintel.dev/api/public/dossier/57e1ed65-e0a0-5f3e-b0c4-c7c577e9dcc0
identifier: sec:0001488139
jurisdiction: US
risk: High
source: WhiteIntel corporate-ownership graph
---

# Ameresco, Inc.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001488139`  
**Risk level:** High  
**Canonical dossier:** https://whiteintel.dev/entity/57e1ed65-e0a0-5f3e-b0c4-c7c577e9dcc0  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/57e1ed65-e0a0-5f3e-b0c4-c7c577e9dcc0  

## Ownership & control

### Owners / controllers

- **Sakellaris George P** (10% owner) — https://whiteintel.dev/entity/add666d7-616c-54bb-a132-bf4080cfa7b6
- **Sakellaris George P** (10% owner) — https://whiteintel.dev/entity/add666d7-616c-54bb-a132-bf4080cfa7b6
- **Sakellaris George P** (10% owner) — https://whiteintel.dev/entity/add666d7-616c-54bb-a132-bf4080cfa7b6
- **Sakellaris George P** (tenpercentowner) — https://whiteintel.dev/entity/add666d7-616c-54bb-a132-bf4080cfa7b6
- **GAGNON NEIL** (tenpercentowner) — https://whiteintel.dev/entity/45ae2de1-ea60-5b99-9a5c-6cf497c9e094
- **BYRNE SAMUEL T** (tenpercentowner) — https://whiteintel.dev/entity/ffd23407-0f7f-5a1a-a550-d75ab1dd07a4
- **SAKELLARIS ARTHUR P** (tenpercentowner) — https://whiteintel.dev/entity/b6de2e1b-7021-5e4d-ba40-92810fe310ad

### UBO chain (walk to the ultimate owner)

A **59-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Ameresco, Inc.**. Human view: https://whiteintel.dev/entity/57e1ed65-e0a0-5f3e-b0c4-c7c577e9dcc0 · Structured JSON: https://whiteintel.dev/api/public/dossier/57e1ed65-e0a0-5f3e-b0c4-c7c577e9dcc0._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._