# Arthur Ventures Portfolio Map 2026: 25 Startups by Sector

> Arthur Ventures's portfolio mapped: 25 startups it has backed, in 6 sectors from AI, Cybersecurity and Software on.

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

## AI

7

- [Perry Weather](https://millionrounds.com/company/perry-weather)
- [TJM Labs](https://millionrounds.com/company/tjm-labs)
- [Protenus](https://millionrounds.com/company/protenus)
- [*T* Terminus](https://millionrounds.com/company/terminus)
- [Cyber](https://millionrounds.com/company/cyber)
- [CrushBank](https://millionrounds.com/company/crushbank)
- [Caju AI](https://millionrounds.com/company/caju-ai)

## Cybersecurity

5

- [ThreatLocker](https://millionrounds.com/company/threatlocker)
- [CertifID](https://millionrounds.com/company/certifid)
- [Cybrary](https://millionrounds.com/company/cybrary)
- [Nucleus Security](https://millionrounds.com/company/nucleus-security)
- [Paubox](https://millionrounds.com/company/paubox)

## Software

4

- [LeadPages](https://millionrounds.com/company/leadpages)
- [Intelligent InSites](https://millionrounds.com/company/intelligent-insites)
- [IrisCX](https://millionrounds.com/company/iriscx)
- [Rhiza, Inc.](https://millionrounds.com/company/rhiza-inc)

## Fintech

3

- [OptiFunder](https://millionrounds.com/company/optifunder)
- [Formations](https://millionrounds.com/company/formations)
- [Z m Rails](https://millionrounds.com/company/z-m-rails)

## Advertising & Adtech

3

- [Total Expert](https://millionrounds.com/company/total-expert)
- [Stensul](https://millionrounds.com/company/stensul)
- [250ok](https://millionrounds.com/company/250ok)

## IT Services

3

- [Infusionsoft](https://millionrounds.com/company/infusionsoft)
- [Vidku](https://millionrounds.com/company/vidku)
- [SlicedHealth](https://millionrounds.com/company/slicedhealth)

## Segment by segment

### AI

7 startups · $294M raised

- [**Perry Weather**](https://millionrounds.com/company/perry-weather) Perry Weather is a B2B cloud-based weather safety and operations platform founded in 2013 and headquartered in Dallas, Texas. United States $125M
- [**TJM Labs**](https://millionrounds.com/company/tjm-labs) TJM Labs helps pharmacies eliminate manual, repetitive work with AI-driven automation. United States $85M
- [**Protenus**](https://millionrounds.com/company/protenus) Protenus is a leading healthcare compliance analytics company based in Baltimore, Maryland. United States $33M
- [*T* **Terminus**](https://millionrounds.com/company/terminus) United Kingdom $22M
- [**Cyber**](https://millionrounds.com/company/cyber) Cyber is an Ethereum Layer 2 blockchain network tailored for social applications and AI. United States $20M
- [**CrushBank**](https://millionrounds.com/company/crushbank) CrushBank is an AI-driven SaaS technology company that specializes in providing an intelligent IT help-desk platform. United States $5.5M
- [**Caju AI**](https://millionrounds.com/company/caju-ai) Caju AI is an AI platform for enhancing customer engagement, workforce productivity, and business insights. United States $3.0M

### Cybersecurity

5 startups · $352M raised

- [**ThreatLocker**](https://millionrounds.com/company/threatlocker) ThreatLocker is a leader in Zero Trust endpoint security, providing advanced cybersecurity solutions to protect servers, endpoints United States $250M
- [**CertifID**](https://millionrounds.com/company/certifid) CertifID is a prominent PropTech and network security company focused on preventing wire fraud in the real estate sector. United States $48M
- [**Cybrary**](https://millionrounds.com/company/cybrary) Cybrary is a cybersecurity platform that offers cybersecurity workforce education and training services for IT professionals. United States $25M
- [**Nucleus Security**](https://millionrounds.com/company/nucleus-security) Nucleus Security is an enterprise cybersecurity company that specializes in Unified Vulnerability and Exposure Management (UVEM). United States $20M
- [**Paubox**](https://millionrounds.com/company/paubox) Paubox is a San Francisco-based technology company that specializes in HIPAA-compliant email security and communication solutions United States $10M

### Software

4 startups · $55M raised

- [**LeadPages**](https://millionrounds.com/company/leadpages) Leadpages is a tool that lets you create launch pages, sales pages, pop ups, and other conversion pages. United States $38M
- [**Intelligent InSites**](https://millionrounds.com/company/intelligent-insites) Intelligent InSites converts automatically-collected data into actionable insights for healthcare organizations to optimize operations. United States $7.6M
- [**IrisCX**](https://millionrounds.com/company/iriscx) IrisCX is a Calgary-based company that offers an AI-powered enterprise video platform designed for remote visual assistance. Canada $4.6M
- [**Rhiza, Inc.**](https://millionrounds.com/company/rhiza-inc) Ad sales/marketing tools that use Big Data & prescriptive analytics to recommend optimal media inventory that reaches advertisers' targets. United States $4.5M

### Fintech

3 startups · $41M raised

- [**OptiFunder**](https://millionrounds.com/company/optifunder) OptiFunder is a private FinTech company based in Clayton, Missouri, founded in 2018. United States $25M
- [**Formations**](https://millionrounds.com/company/formations) Formations is a financial software company based in Kirkland, Washington, founded in 2019 by tax accountants. United States $8.0M
- [**Z m Rails**](https://millionrounds.com/company/z-m-rails) Zūm Rails is a financial technology company based in Montreal, Canada, founded in 2019. Canada $7.8M

### Advertising & Adtech

3 startups · $116M raised

- [**Total Expert**](https://millionrounds.com/company/total-expert) Total Expert is a fintech software company that specializes in Customer Relationship Management (CRM) and customer engagement plat United States $72M
- [**Stensul**](https://millionrounds.com/company/stensul) Stensul is a New York-based enterprise software company that offers the Governed CreationTM Platform, also known as the Marketing United States $42M
- [**250ok**](https://millionrounds.com/company/250ok) Email analytics and deliverability platform United States $2.9M

### IT Services

3 startups · $150M raised

- [**Infusionsoft**](https://millionrounds.com/company/infusionsoft) Keap, formerly known as Infusionsoft, is a cloud-based software company based in Chandler, Arizona. United States $128M
- [**Vidku**](https://millionrounds.com/company/vidku) Vidku is a mobile video sharing application founded in 2012 and based in Minneapolis, Minnesota. United States $17M
- [**SlicedHealth**](https://millionrounds.com/company/slicedhealth) Real-time financial information, when it's needed most. United States $5.0M

**How this map is made.** Every startup here has raised money in a round we track that names Arthur Ventures as an investor, the first in 2012. 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 · United States **Techstars** 1,119 startups · 12 sectors · $16B](https://millionrounds.com/portfolio-maps/techstars-portfolio-map)[VC firm · United States **Alumni Ventures** 745 startups · 12 sectors · $64B](https://millionrounds.com/portfolio-maps/us-strategic-tech-fund-an-alumni-ventures-fund-portfolio-map)[VC firm · United States **Andreessen Horowitz** 694 startups · 12 sectors · $497B](https://millionrounds.com/portfolio-maps/andreessen-horowitz-portfolio-map)[VC firm · United States **Sequoia Capital** 651 startups · 12 sectors · $677B](https://millionrounds.com/portfolio-maps/sequoia-capital-portfolio-map)[VC firm · United States **SV Angel** 548 startups · 12 sectors · $79B](https://millionrounds.com/portfolio-maps/sv-angel-portfolio-map)[VC firm · United States **General Catalyst** 538 startups · 12 sectors · $230B](https://millionrounds.com/portfolio-maps/general-catalyst-portfolio-map)

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