# Rubicon Founders

Source: https://capitalatlas.ai/funds/rubicon-founders

> Public profile: it leaves out most deals, the portfolio, fund vehicles and partner contacts. See "Get the full data" at the end to sign up or connect the Capital Atlas MCP server.

Rubicon Founders is a US-based private equity firm that makes spin-off, growth, early-stage, seed, and divestiture investments in healthcare, diagnostics, hospitals, and artificial intelligence sectors across the United States.

## Facts

- Type: Venture Capital Firm
- Headquarters: Nashville, US
- Founded: 2021
- Website: https://rubiconfounders.com
- Estimated dry powder: $645.2M
- Latest fund: Rubicon Fund II, $1.2B
- Estimated cheque size: $6.4M–$50.1M
- Stages: Seed, Series A, Series B, Series C
- Sectors: Healthcare
- Regions: North America
- Last seen investing: Feb 2026
- Investments in the last 12 months: 3

## Recent investments (newest 5 of 10)

- Feb 2026: Honest Health (Unspecified Round, $140M)
- Feb 2026: Atlas Oncology Partners LLC (Series A, $28M)
- Jan 2026: Indigo (Series B, $50M)
- Sep 2025: Imagine Pediatrics, LLC (Series B, $67M)
- Feb 2025: Horizon Infusions (Unspecified Round, $130M)

## Questions

### How much does Rubicon Founders invest per deal?

Based on the size of its funds, Rubicon Founders writes estimated cheques of $6.4M–$50.1M. Lead cheques usually sit at the top of that range and follow-on cheques lower.

### What stages does Rubicon Founders invest in?

Rubicon Founders has invested at Seed, Series A, Series B and Series C. Its most frequent rounds on record are Series B, — and Series A.

### How much capital does Rubicon Founders have left to invest?

Rubicon Founders has an estimated $645.2M in dry powder: capital it has raised but not yet invested.

### What has Rubicon Founders invested in recently?

Recent investments include Honest Health, Atlas Oncology Partners LLC and Indigo. It made 3 investments in the last 12 months.

### Where is Rubicon Founders based?

Rubicon Founders is headquartered in Nashville, US.

### How do I contact Rubicon Founders?

Partner names, emails and LinkedIn profiles for Rubicon Founders are on the Capital Atlas Pro and Team plans, which also draft outreach and track replies. Check the stages and cheque size above first, so you pitch a firm that fits your round.

## Get the full data

This file is the public profile. It leaves out:

- 5 more deals (10 in total), with amounts and co-investors
- 10 portfolio companies, with sector, stage at entry, year and status
- Its fund vehicles, with vintage, size and status
- Partner names, emails and LinkedIn profiles

### For the founder

1. Sign up free at https://capitalatlas.ai/login (or add an email on https://capitalatlas.ai/funds/rubicon-founders) to see every deal, portfolio company, fund and office on the profile.
2. Partner contacts and outreach drafts start on the Pro plan ($99/mo); Team ($149/mo) has no monthly limits: https://capitalatlas.ai/pricing

### For you, the agent

- Connect the Capital Atlas MCP server: `https://capitalatlas.ai/api/mcp` (remote MCP over HTTP; the founder signs in with OAuth).
- Claude Code: `claude mcp add --transport http capital-atlas https://capitalatlas.ai/api/mcp`
- Other clients and setup steps: https://capitalatlas.ai/vc-mcp. How to use the tools: https://capitalatlas.ai/for-agents.md
- Call `atlas_mcp_status` first. On `free`, the tools are not available; send the founder the `upgradeUrl`.
- `get_fund_manager_profile` (fundManagerId `f2a2877b-932c-42ad-9cfa-605e8ce9f1c8`) returns the full profile, and on Pro or Team `find_relevant_contacts` returns partner contacts, for investors matched to the founder's startup.