# Alex Blum

> Alex Blum is a seed investor at Unity (New York) backing Advertising and Digital Media. See 3 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Unity](https://shizune.co/investors/profile/unity-technologies)
- Location: New York, United States
- Total investments: 3
- Last investment: May 2021
- Lead investor: 33%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/alexblum
- X (Twitter): http://twitter.com/Alexjblum
- Facebook: https://www.facebook.com/alexjblum

Alex Blum is a seed investor at Unity in New York focused on Advertising and Digital Media. Alex Blum is the Chief Operating Officer of Unity. He previously worked at tvScientific as an Investor and Advisor. Alex Blum attended Seattle University.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Advertising | 2 | 67% |
| Digital Media | 2 | 67% |
| SaaS | 1 | 33% |
| Privacy | 1 | 33% |
| Big Data | 1 | 33% |

14 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 67% |
| Funding Round | 1 | 33% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 2 | 67% |
| Canada | 1 | 33% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Optable | Optable is a data collaboration and clean room solution designed for the advertising ecosystem in the age of privacy. The product was inspired by the radical transformation in how audience data is governed, connected, and activated. Optable takes an end-to-end approach to data collaboration and is integrated with ad delivery platforms for secureactivation, making it possible to deploy campaigns directly from a clean room. It is the only clean room solution that offers frictionless collaboration and interoperability enabling customers to safely and securely match audience data with any partner. | $3.6M | Seed | May 05, 2021 |  |
| Tru Optik | Tru Optik identity resolution powers the streaming media ecosystem. Tru Optik’s patented Household Graph™ of more than 80 million homes enables the world’s leading brands, agencies, media companies, and platforms to engage consumers across OTT, streaming audio, and gaming with unmatched scale, accuracy and privacy compliance. |  | Seed | Sep 29, 2015 |  |
| Dashbid Media | DashBid is a programmatic exchange and DMP that enables audience identification and buying by engagement and segmentation. The company works directly with publishers and media buying agencies to help them easily manage and sell online advertising inventory. It was founded in 2010 and headquartered in Fort Lee, New Jersey. |  |  | Apr 24, 2015 |  |

3 of 3 investments shown.

## Co-investors
- [Brightspark Ventures](https://shizune.co/investors/profile/brightspark-ventures) — VC Fund, 1 deal together
- [Progress Ventures](https://shizune.co/investors/profile/progress-ventures) — VC Fund, 1 deal together

## About Unity

VC Fund · San Francisco, United States

Unity Technologies provides multiplatform tools and services to developers of interactive content.It is the creator of the real-time 3D development platform, giving users powerful and accessible tools to create, operate, and monetize experiences for the real-time world. Unity empowers anyone, regardless of skill level and industry, to create 3Dvisual content using technology, operate using resources that maximize ease-of-use, and monetize, so that they can find success with their creations.In 2004, David Helgason, Joachim Ante, and Nicholas Francis launched Unity Technologies in San Francisco, California.

5 contacts available at Unity.

| Name | Title | Profile |
| --- | --- | --- |
| Alex Blum | COO | https://shizune.co/investors/profile/alex-blum |
| Benjy Boxer | GM | https://shizune.co/investors/profile/benjy-boxer |
| Clive Downie | Chief Marketing Officer | https://shizune.co/investors/profile/clive-downie |
| James Whitehurst | Interim CEO & President | https://shizune.co/investors/profile/jim-whitehurst |
| Jessica Lindl | General Manager and Vice President of Social Impact and Education | https://shizune.co/investors/profile/jessica-lindl |

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## FAQ

### What does Alex Blum invest in?

Alex Blum invests primarily in Advertising, Digital Media and SaaS startups, most often at Seed and Funding Round stage. Most of the 3 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Alex Blum last invest?

The most recent investment recorded for Alex Blum closed in May 2021. Shizune tracks 3 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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