---
title: "MAINSAIL MANAGEMENT COMPANY, LLC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/409f3315-aa02-5cfc-9b6e-cd076af1908f
json: https://whiteintel.dev/api/public/dossier/409f3315-aa02-5cfc-9b6e-cd076af1908f
identifier: sec:0001883367
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MAINSAIL MANAGEMENT COMPANY, LLC

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001883367`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/409f3315-aa02-5cfc-9b6e-cd076af1908f  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/409f3315-aa02-5cfc-9b6e-cd076af1908f  

## Ownership & control

### Holdings / subsidiaries

- **Brilliant Earth Group, Inc.** (10% owner) — https://whiteintel.dev/entity/ec768eda-c296-5ab7-a7a4-c3819726209f
- **Brilliant Earth Group, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/ec768eda-c296-5ab7-a7a4-c3819726209f

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **MAINSAIL MANAGEMENT COMPANY, LLC** — https://whiteintel.dev/entity/409f3315-aa02-5cfc-9b6e-cd076af1908f · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MAINSAIL MANAGEMENT COMPANY, LLC**. Human view: https://whiteintel.dev/entity/409f3315-aa02-5cfc-9b6e-cd076af1908f · Structured JSON: https://whiteintel.dev/api/public/dossier/409f3315-aa02-5cfc-9b6e-cd076af1908f._

_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"._