# S3 Ventures Portfolio Map 2026: 32 Startups by Sector

> S3 Ventures's portfolio mapped: 32 startups it has backed, in 6 sectors from AI, Fintech and Healthtech on.

Source: https://millionrounds.com/portfolio-maps/s3-ventures-portfolio-map (Millionrounds; every figure on the page links to its filing or article)

## AI

8

- [Vendelux](https://millionrounds.com/company/vendelux)
- [DataBahn](https://millionrounds.com/company/databahn)
- [Boom](https://millionrounds.com/company/boom)
- [Buzz Solutions](https://millionrounds.com/company/buzz-solutions)
- [Cloverleaf AI](https://millionrounds.com/company/cloverleaf-ai)
- [KamiwazaAI](https://millionrounds.com/company/kamiwazaai)
- [Schematic](https://millionrounds.com/company/schematic)
- [TensorStax](https://millionrounds.com/company/tensorstax)

## Fintech

7

- [UpEquity](https://millionrounds.com/company/upequity)
- [Alkami](https://millionrounds.com/company/alkami)
- [Levelset](https://millionrounds.com/company/levelset)
- [Avtal](https://millionrounds.com/company/avtal)
- [Earlytrade](https://millionrounds.com/company/earlytrade)
- [Opine](https://millionrounds.com/company/opine)
- [Nestimate](https://millionrounds.com/company/nestimate)

## Healthtech

6

- [*M* MMI](https://millionrounds.com/company/mmi)
- [Advanced NanoTherapies](https://millionrounds.com/company/advanced-nanotherapies)
- [BrainCheck](https://millionrounds.com/company/braincheck)
- [TVA Medical](https://millionrounds.com/company/tva-medical)
- [Saranas](https://millionrounds.com/company/saranas)
- [Ictero Medical](https://millionrounds.com/company/ictero-medical)

## Biotech

4

- [Alleviant Medical](https://millionrounds.com/company/alleviant-medical)
- [*MM* Medical Microinstruments](https://millionrounds.com/company/medical-microinstruments)
- [Venture Med Group](https://millionrounds.com/company/venture-med-group)
- [QbDVision](https://millionrounds.com/company/qbdvision)

## B2B

4

- [Stellar](https://millionrounds.com/company/stellar)
- [Prokeep](https://millionrounds.com/company/prokeep)
- [Arpio](https://millionrounds.com/company/arpio)
- [Civic Eagle](https://millionrounds.com/company/civic-eagle)

## Professional Services

3

- [CereTax](https://millionrounds.com/company/ceretax)
- [Sudozi](https://millionrounds.com/company/sudozi)
- [Sumatra](https://millionrounds.com/company/sumatra)

## Segment by segment

### AI

8 startups · $217M raised

- [**Vendelux**](https://millionrounds.com/company/vendelux) Vendelux is a New York-based AI-powered event intelligence platform designed for B2B event marketers and organizers. United States $64M
- [**DataBahn**](https://millionrounds.com/company/databahn) DataBahn is an AI-native data pipeline and fabric platform based in Plano, Texas. United States $57M
- [**Boom**](https://millionrounds.com/company/boom) Boom is a key player in the emerging Social+NFT revolution that will form an important pillar of the incoming metaverse. United States $40M
- [**Buzz Solutions**](https://millionrounds.com/company/buzz-solutions) Buzz Solutions specializes in visual intelligence solutions aimed at inspecting, maintaining, and securing energy infrastructure. United States $25M
- [**Cloverleaf AI**](https://millionrounds.com/company/cloverleaf-ai) Cloverleaf AI is a Denver-based GovTech and B2G sales intelligence company founded in 2021. United States $11M
- [**KamiwazaAI**](https://millionrounds.com/company/kamiwazaai) KamiwazaAI is a Colorado-based enterprise software company founded in 2023 by Luke Norris and Matt Wallace. United States $8.5M
- [**Schematic**](https://millionrounds.com/company/schematic) Schematic is a platform designed for B2B SaaS applications, focusing on feature management and subscription management. United States $6.5M
- [**TensorStax**](https://millionrounds.com/company/tensorstax) TensorStax is a SaaS company that offers autonomous AI for data engineering services. United States $5.3M

### Fintech

7 startups · $404M raised

- [**UpEquity**](https://millionrounds.com/company/upequity) UpEquity is a tech-enabled mortgage platform. United States $200M
- [**Alkami**](https://millionrounds.com/company/alkami) Alkami is a software development company that specializes in website design and development, consulting, and project management. United States $125M
- [**Levelset**](https://millionrounds.com/company/levelset) Levelset is a platform that helps contractors get paid faster and more efficiently. United States $30M
- [**Avtal**](https://millionrounds.com/company/avtal) Avtal is a fintech and SaaS company based in Austin, Texas, founded in 2023. United States $24M
- [**Earlytrade**](https://millionrounds.com/company/earlytrade) Earlytrade creates a positive change in the way businesses. Australia $16M
- [**Opine**](https://millionrounds.com/company/opine) Opine offers a real-time opinion analytics platform for live events, enhancing audience engagement and data collection. United States $5.5M
- [**Nestimate**](https://millionrounds.com/company/nestimate) Nestimate is a fintech and insurtech startup based in Lincoln, Nebraska, founded in 2022. United States $3.0M

### Healthtech

6 startups · $378M raised

- [*M* **MMI**](https://millionrounds.com/company/mmi) We as an organisation are highly ambitious about innovation and want to bring a change in the existing IT industry. - $263M
- [**Advanced NanoTherapies**](https://millionrounds.com/company/advanced-nanotherapies) Advanced NanoTherapies is a clinical-stage medical device startup based in Los Gatos, California. United States $31M
- [**BrainCheck**](https://millionrounds.com/company/braincheck) BrainCheck is a digital health technology company founded between 2014 and 2015, based in Austin, Texas. United States $28M
- [**TVA Medical**](https://millionrounds.com/company/tva-medical) TVA Medical is a medical device company developing innovative, minimally invasive therapies for the treatment of end stage renal disease. United States $27M
- [**Saranas**](https://millionrounds.com/company/saranas) Saranas, Inc. United States $27M
- [**Ictero Medical**](https://millionrounds.com/company/ictero-medical) Ictero Medical is a medical technology company based in the Texas Medical Center, focused on addressing clinical needs in gallston United States $2.8M

### Biotech

4 startups · $356M raised

- [**Alleviant Medical**](https://millionrounds.com/company/alleviant-medical) Alleviant Medical is a medical device company based in Austin, Texas, founded in 2017. United States $165M
- [*MM* **Medical Microinstruments**](https://millionrounds.com/company/medical-microinstruments) United States $150M
- [**Venture Med Group**](https://millionrounds.com/company/venture-med-group) VMG designs, develops which enable interventionalists to cost effectively treat peripheral artery diseases. United States $28M
- [**QbDVision**](https://millionrounds.com/company/qbdvision) QbDVision is a leading Digital CMC (Chemistry, Manufacturing, and Controls) platform tailored for pharmaceutical and biotech manuf United States $13M

### B2B

4 startups · $85M raised

- [**Stellar**](https://millionrounds.com/company/stellar) A marketplace built for excess, Stellar allows consumers convenient access to goods, services and experiences that may otherwise go unused. United States $34M
- [**Prokeep**](https://millionrounds.com/company/prokeep) Prokeep Inc. United States $25M
- [**Arpio**](https://millionrounds.com/company/arpio) Arpio, Inc. United States $16M
- [**Civic Eagle**](https://millionrounds.com/company/civic-eagle) Civic Eagle develops software that helps companies discover and analyze legislation and regulations with no manual work. United States $10M

### Professional Services

3 startups · $14M raised

- [**CereTax**](https://millionrounds.com/company/ceretax) CereTax is here to show tax managers, tax directors. United States $7.9M
- [**Sudozi**](https://millionrounds.com/company/sudozi) Sudozi is a real-time platform that track, collaborate, budget, and approve budget management and vendor management workflow. United States $4.3M
- [**Sumatra**](https://millionrounds.com/company/sumatra) Sumatra is an AI and data platform company based in Austin, Texas, founded in 2019. United States $1.5M

**How this map is made.** Every startup here has raised money in a round we track that names S3 Ventures as an investor, the first in 2015. Each sits under its main sector, read from its rounds, and each sector shows its best-funded first; sectors with fewer than three companies are left off. Rebuilt nightly; updated 15 November 2026.

## More portfolio maps

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

[VC firm · Saudi Arabia **Vision Ventures** 32 startups · 7 sectors · $673M](https://millionrounds.com/portfolio-maps/vision-ventures-portfolio-map)[Corporate investor · Saudi Arabia **Aramco Ventures** 25 startups · 5 sectors · $2.9B](https://millionrounds.com/portfolio-maps/aramco-ventures-portfolio-map)[Accelerator · United States **Y Combinator** 2,679 startups · 12 sectors · $111B](https://millionrounds.com/portfolio-maps/y-combinator-portfolio-map)[VC firm · United States **Techstars** 1,119 startups · 12 sectors · $16B](https://millionrounds.com/portfolio-maps/techstars-portfolio-map)[Government fund · United States **National Science Foundation** 988 startups · 12 sectors · $10B](https://millionrounds.com/portfolio-maps/nsf-small-business-innovation-research-small-business-techno-portfolio-map)[Angel investor · United States **500 Global** 757 startups · 12 sectors · $21B](https://millionrounds.com/portfolio-maps/500-startups-portfolio-map)

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