# Third Prime's AI Investments: 10 Startups in Its Portfolio (2026)

> The 10 AI startups Third Prime has backed, by stage: $85M raised between them. From the rounds we track; updated nightly.

Source: https://millionrounds.com/portfolio-maps/third-prime-ai-portfolio (Millionrounds; every figure on the page links to its filing or article)

## Pre-seed and seed

5

- [*BA* Bone AI](https://millionrounds.com/company/bone-ai)
- [Iris](https://millionrounds.com/company/iris)
- [CalmWave](https://millionrounds.com/company/calmwave)
- [Spur](https://millionrounds.com/company/spur)
- [Everstar](https://millionrounds.com/company/everstar)

## Series A

3

- [Circuit Mind](https://millionrounds.com/company/circuit-mind)
- [Verisoul](https://millionrounds.com/company/verisoul)
- [UnityAI](https://millionrounds.com/company/unityai)

## Stage not reported

2

- [Instnt](https://millionrounds.com/company/instnt)
- [Slipstream](https://millionrounds.com/company/slipstream)

## Segment by segment

### Pre-seed and seed

5 startups · $40M raised

- [*BA* **Bone AI**](https://millionrounds.com/company/bone-ai) South Korea $12M
- [**Iris**](https://millionrounds.com/company/iris) IRIS is a venture capital firm that provides funding and sector-specific expertise for tech entrepreneurs and their businesses at United States $10M
- [**CalmWave**](https://millionrounds.com/company/calmwave) CalmWave is a Seattle-based healthcare software company founded in 2022. United States $9.7M
- [**Spur**](https://millionrounds.com/company/spur) SPUR brings together people from across the political spectrum to develop solutions to the major problems faced by cities. United States $4.5M
- [**Everstar**](https://millionrounds.com/company/everstar) Everstar is an elite team from NRC, CIA, Google, Microsoft, SpaceX, and Tesla that's transforming nuclear deployment through cutting-edge AI. United States $4.0M

### Series A

3 startups · $42M raised

- [**Circuit Mind**](https://millionrounds.com/company/circuit-mind) Circuit Mind is a London-based deep-tech startup founded in 2018, specializing in AI-powered electronic design automation (EDA) software. United Kingdom $25M
- [**Verisoul**](https://millionrounds.com/company/verisoul) Verisoul is a cybersecurity and digital identity company based in Austin, Texas, founded in 2022. United States $8.8M
- [**UnityAI**](https://millionrounds.com/company/unityai) UnityAI is a healthcare technology startup based in Nashville, Tennessee. United States $8.5M

### Stage not reported

2 startups · $2.5M raised

- [**Instnt**](https://millionrounds.com/company/instnt) AI SaaS to eliminate fraud risks and transfer losses to the insurance market. United States $2.5M
- [**Slipstream**](https://millionrounds.com/company/slipstream) Slipstream is a real estate company. United States $20K

**How this map is made.** Every startup here works in AI and has raised money in a round we track that names Third Prime as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

## More portfolio maps

[All portfolios](https://millionrounds.com/portfolio-maps)

[Sector portfolio **Third Prime's Fintech portfolio** 13 startups · $793M](https://millionrounds.com/portfolio-maps/third-prime-fintech-portfolio)[Portfolio map **Third Prime portfolio map** 27 startups · $1.1B](https://millionrounds.com/portfolio-maps/third-prime-portfolio-map)[Co-investors **Who invests with Third Prime** 19 co-investors](https://millionrounds.com/portfolio-maps/third-prime-co-investors)[Sector portfolio **Techstars' AI portfolio** 336 startups · $4.9B](https://millionrounds.com/portfolio-maps/techstars-ai-portfolio)[Sector portfolio **Alumni Ventures' AI portfolio** 302 startups · $36B](https://millionrounds.com/portfolio-maps/us-strategic-tech-fund-an-alumni-ventures-fund-ai-portfolio)[Sector portfolio **Andreessen Horowitz's AI portfolio** 259 startups · $426B](https://millionrounds.com/portfolio-maps/andreessen-horowitz-ai-portfolio)

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