# S3 Ventures: portfolio, investments and team

> S3 Ventures is a vc firm based in Saudi Arabia. 96 investments on record, 18 in the last 12 months, latest Oct 2026. Portfolio, stages, co-investors and team.

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

Saudi Arabia · [Investor](https://millionrounds.com/investors)

# S3 Ventures

Last cheque observed Oct 2026; 96 cheques on record.

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Deploying now New fund $150M, Sept 2025 VC firm

Seed Series A Software Artificial Intelligence

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Deploying now

**90%** of best year **18** **cheques in 12 months**, 96 on record

Since the last cheque **19** days **00** hrs **00** min **00** sec

Median round **$11M** Rounds led **7 of 96** Sole investor **23 rounds** Exits **2 from the portfolio** Mostly in **United States, 97%**

Pitch S3 Ventures

Another investor of this name exists, and we could not establish from the rounds which of them the press meant. Treat the record below as possibly belonging to either. [Tell us which](https://millionrounds.com/corrections?slug=s3-ventures) if you know.

## S3 Ventures highlights

- 01 18 cheques in the last 12 months
- 02 Mostly Series A and Series B: 67% of its rounds
- 03 Sole investor in 23 rounds, median $8.2M
- 04 2 exits from the portfolio

## What they do

- **Type:** VC firm (from a list, unverified)
- **Cheque size:** Not stated
- **Stages:** Seed Series A
- **Sectors:** Software Artificial Intelligence
- **Based in:** Riyadh, Saudi Arabia
- **Cold pitches:** Not stated

## The record

Every round we can evidence, newest first **96 appearances**

- **2026** 15 rounds
- **Oct** **[MMI](https://millionrounds.com/company/mmi)** Series D · Pulse 2.0 **$125M** With 2 others
- **Aug** **[Buzz Solutions](https://millionrounds.com/company/buzz-solutions)** Series A · US · MaC Venture Capital **$20M** *Led*
- **Aug** **[Boom](https://millionrounds.com/company/boom)** Series A · US **$15M** With 3 others
- **Aug** **[Cloverleaf AI](https://millionrounds.com/company/cloverleaf-ai)** Series A · US **$8.0M** With 2 others
- **Jul** **[DataBahn](https://millionrounds.com/company/databahn)** Series B · US · TechStartups **$40M** With 3 others
- **Jul** **[RapidPulse](https://millionrounds.com/company/rapidpulse)** Series B · US · Longview Ventures **$48M** With 7 others
- **Jul** **[Vendelux](https://millionrounds.com/company/vendelux)** Series B · US **$50M** With 4 others
- **Jul** **[Buildforce](https://millionrounds.com/company/buildforce)** Series A · US **$10M** With 2 others
- **Jun** **[Advanced NanoTherapies](https://millionrounds.com/company/advanced-nanotherapies)** Series B · US **$31M** Sole investor
- **Jun** **[Earlytrade](https://millionrounds.com/company/earlytrade)** Series A · AU **$10M** With 2 others
- **Jun** **[Arpio](https://millionrounds.com/company/arpio)** Series A · US **$8.2M** With 3 others
- **Apr** **[Schematic](https://millionrounds.com/company/schematic)** Seed · US · Crunchbase News **$6.5M** *Led*
- **Mar** **[Avtal](https://millionrounds.com/company/avtal)** Series A · US **$24M** Sole investor
- **Feb** **[BrainCheck](https://millionrounds.com/company/braincheck)** Series A · US · Ventureburn **$13M** With 3 others
- **Jan** **[MontyCloud](https://millionrounds.com/company/montycloud)** Series B · US **$12M** With 3 others
- **2025** 20 rounds
- **Dec** **[Opine](https://millionrounds.com/company/opine)** Seed · US **$5.0M** With 1 other
- **Dec** **[Buildforce](https://millionrounds.com/company/buildforce)** Venture · US **$7.7M** With 2 others
- **Nov** **[VahatiCor](https://millionrounds.com/company/vahaticor)** Series B · US **$23M** Sole investor
- **Oct** **[LeanDNA](https://millionrounds.com/company/leandna)** Venture · US **Undisclosed** With 1 other
- **Oct** **[Venture Med Group](https://millionrounds.com/company/venture-med-group)** Series C · US **$28M** Sole investor
- **Oct** **[Folia Health](https://millionrounds.com/company/folia-health)** Series A · US **$11M** With 4 others
- **Aug** **[Nestimate](https://millionrounds.com/company/nestimate)** Seed · US **$3.0M** With 1 other
- **Jul** **[Videate](https://millionrounds.com/company/videate)** Venture · US **Undisclosed** Sole investor
- **Jun** **[UpEquity](https://millionrounds.com/company/upequity)** Debt · US **$200M** With 5 others
- **Jun** **[DataBahn](https://millionrounds.com/company/databahn)** Series A · US **$17M** With 1 other
- **May** **[Atmosphere](https://millionrounds.com/company/atmosphere)** Debt · US **$63M** With 2 others
- **May** **[QbDVision](https://millionrounds.com/company/qbdvision)** Series A · US **$13M** With 2 others
- **Apr** **[Hydrolix](https://millionrounds.com/company/hydrolix)** Series C · US · QED Investors **$80M** With 4 others
- **Apr** **[CereTax](https://millionrounds.com/company/ceretax)** Venture · US **$7.9M** Sole investor
- **Mar** **[TensorStax](https://millionrounds.com/company/tensorstax)** Seed · US **$5.3M** With 4 others
- **Mar** **[Crogl](https://millionrounds.com/company/crogl)** Series A · US **$25M** With 2 others
- **Feb** **[Endovascular Engineering](https://millionrounds.com/company/endovascular-engineering)** Series B · US · Firms' own news pages **$42M** With 5 others
- **Feb** **[Mavvrik](https://millionrounds.com/company/mavvrik)** Seed · US **$6.2M** With 2 others
- **Jan** **[Alleviant Medical](https://millionrounds.com/company/alleviant-medical)** Venture · US · Vensana Capital **$90M** With 2 others
- **Jan** **[KamiwazaAI](https://millionrounds.com/company/kamiwazaai)** Seed · US **$8.5M** With 1 other
- **2024** 7 rounds
- **Nov** **[Prokeep](https://millionrounds.com/company/prokeep)** Series A · US **$25M** Sole investor
- **Nov** **[Sunthetics](https://millionrounds.com/company/sunthetics)** Seed · US **$4.0M** With 2 others
- **Oct** **[RepVue](https://millionrounds.com/company/repvue)** Venture · US **Undisclosed** With 2 others
- **Sept** **[Interplay Learning](https://millionrounds.com/company/interplay-learning)** Growth · US **$20M** With 4 others
- **Sept** **[Spectrawave](https://millionrounds.com/company/spectrawave)** Series B · US **$50M** With 2 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

## The team

Named by the firm itself, on a filing, its Form ADV or its company registration **2 named**

BR **Brian R. Smith** MANAGING DIRECTOR OF THE GP OF THE GP i Filing they signed

SR **Smith R. Brian** Promoter i Filing they signed

We also hold **3** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

## Exits from the portfolio

Companies it backed that were later bought or listed **2 in all**

**[Gravitant](https://millionrounds.com/company/gravitant)** Bought by [IBM (International Business Machines)](https://millionrounds.com/fund/ibm-international-business-machines) **Undisclosed** Nov 2015

**[StoredIQ](https://millionrounds.com/company/storediq)** Bought by [IBM (International Business Machines)](https://millionrounds.com/fund/ibm-international-business-machines) **Undisclosed** Dec 2012

An exit counts when it came after the firm's first round in the company. From historical deal records.

New fund on file

**$150M**

raised in Sept 2025

From its SEC filing, not a journalist: a firm that has just raised has money to deploy.

## The cheque

Seed Series A

Median round joined **$11M** the round, not its cheque Alone, median **$8.2M**

Led 7 of 96 rounds **7%**

- **Sole investor:** 23 rounds
- **Last cheque:** Oct 2026
- **Exits:** 2 from the portfolio

Rounds by stage said on their site

- Series A said *34*
- Series B *22*
- Seed said *12*
- Venture *10*
- Series C *6*

Cheques by month Led Joined

Nov 2023 Oct 2026

Often in the room with

- [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) 5
- [Techstars](https://millionrounds.com/fund/techstars) 5
- [Argonaut Private Equity](https://millionrounds.com/fund/argonaut-private-equity) 4
- [InterWest Partners](https://millionrounds.com/fund/interwest-partners) 4
- [Next Coast Ventures](https://millionrounds.com/fund/next-coast-ventures) 4
- [Y Combinator](https://millionrounds.com/fund/y-combinator) 4

**Pitching S3 Ventures?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque.

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## Who they invest alongside

The investors most often in the same rounds as S3 Ventures. A count of rooms they were both in, not a relationship either has claimed.

[**Alumni Ventures** VC firm **5** rounds together](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund)[**Techstars** VC firm **5** rounds together](https://millionrounds.com/fund/techstars)[**Argonaut Private Equity** Private equity **4** rounds together](https://millionrounds.com/fund/argonaut-private-equity)[**InterWest Partners** VC firm **4** rounds together](https://millionrounds.com/fund/interwest-partners)[**Next Coast Ventures** VC firm **4** rounds together](https://millionrounds.com/fund/next-coast-ventures)[**Y Combinator** Accelerator **4** rounds together](https://millionrounds.com/fund/y-combinator)[**Capital Factory** VC firm **3** rounds together](https://millionrounds.com/fund/capital-factory)[**Karman Ventures** VC firm **3** rounds together](https://millionrounds.com/fund/karman-ventures)[**MassChallenge** Accelerator **3** rounds together](https://millionrounds.com/fund/masschallenge)[**Menlo Ventures** VC firm **3** rounds together](https://millionrounds.com/fund/menlo-ventures)[**Mercury Fund** VC firm **3** rounds together](https://millionrounds.com/fund/mercury-fund)[**Mesirow Financial** Private equity **3** rounds together](https://millionrounds.com/fund/mesirow-financial)

## Recently backed

The latest companies S3 Ventures put money into.

[**Buzz Solutions** $20M · Aug 2026](https://millionrounds.com/company/buzz-solutions)[**Boom** $15M · Aug 2026](https://millionrounds.com/company/boom)[**Cloverleaf AI** $8.0M · Aug 2026](https://millionrounds.com/company/cloverleaf-ai)[**DataBahn** $40M · Jul 2026](https://millionrounds.com/company/databahn)[**Vendelux** $50M · Jul 2026](https://millionrounds.com/company/vendelux)[**Buildforce** $10M · Jul 2026](https://millionrounds.com/company/buildforce)

## Quick answers about S3 Ventures

### What does S3 Ventures invest in?

S3 Ventures invests most often at Series A and Series B (67% of the rounds on record), in sectors such as Software and Artificial Intelligence.

### How active is S3 Ventures?

96 investments on record, 18 of them in the last 12 months, and it led 7. The most recent was in Oct 2026.

### What has S3 Ventures invested in recently?

Its most recent investments on record: MMI (Series D, Oct 2026), Buzz Solutions (Series A, Aug 2026) and Boom (Series A, Aug 2026).

### How big are S3 Ventures's cheques?

The median round it joins is $11M.

### Does S3 Ventures lead rounds?

Sometimes: it led 7 of its 96 investments on record (7%).

### Where does S3 Ventures invest?

Most of the companies it backs are in the United States (97%).

### Is S3 Ventures investing now?

Yes: it is actively investing, with 18 investments in the last 12 months.

### Who does S3 Ventures invest alongside?

Most often Alumni Ventures (5 rounds together), Techstars (5 rounds together) and Argonaut Private Equity (4 rounds together).

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