# Jack Levin

> Jack Levin is a seed investor at Nventify Inc (Los Gatos) backing Social Media and Mobile Apps. See 6 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Nventify Inc](https://shizune.co/investors/profile/nventify-inc)
- Location: Los Gatos, United States
- Total investments: 6
- Last investment: Sep 2020
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/yjlevin/
- X (Twitter): http://twitter.com/jacklevin74
- Facebook: http://www.facebook.com/profile.php?id=500685797

Jack Levin is a seed investor at Nventify Inc in Los Gatos focused on Social Media and Mobile Apps. I am a Founder and CEO of Nventify Inc. - a company that develops cloud based software solutions, rapidly becoming part of the cloud infrastructure stack. Our most recent release is an image processing engine in a form of an EC2 VM on AWS we call Imagizer Media Engine. By using Imagizer in your cloud stack you will be able to optimize, scale,resize and manipulate your visual media at unprecedented scale and speed. (http://nventify.com) Previously ('05-'14) I was a CEO and coFounder of ImageShack.com and yfrog.com; Originally top 20th website in U.S. with 60 million monthly uniques, and 35 million subscribers. ImageShack had 5 billion images under management and was a key image delivery and hosting player for MySpace and Twitter (via yfrog.com). I've met Larry and Sergey of Google in 1999, soon after becoming one of the early Infrastructure Engineers, overseeing early partnerships with Netscape, Yahoo, AOL, ASK and many others. I am an early seed investor, and do about 5 to 10 investments per year. You can find the current list of the startups I invested in on Angel List (https://angel.co/jacklevin74). My investment interests include Mobile Consumer Internet, SAAS and Cloud technology startups. I am well connected with some well known VC firms such as Sequoia, Bessemer, NVP, Greylock, NEA, Index Ventures, Kleiner Perkins and LDV Capital. I am also very well connected with the startup accelerator communities like 500, YC, Upwest Labs and Angel List.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $150k–$3.5M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Social Media | 3 | 50% |
| Mobile Apps | 2 | 33% |
| Pet | 1 | 17% |
| iOS | 1 | 17% |
| SaaS | 1 | 17% |

18 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 3 | 50% |
| Angel | 2 | 33% |
| Pre-Seed | 1 | 17% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Animal ID | Animal ID it’s a b2b2c platform for pet owners and manufacturers of pet products. We help pet owners in taking care of their pets by providing a full-service platform with mobile apps and QR ID tags.On the other hand, we help manufacturers to collect detailed customer data and build a D2C channel of communication and sales by using our app or bylaunching separate branded solutions (digital pet IDs, mobile apps, loyalty programs, etc). Our goal is to digitize all pets in the world and build the biggest community of pet owners. Providing solutions for B2B is our unique go-to-market strategy that saves millions of dollars for companies and brings thousands of end-users to the platform every day. | $150K | Seed | Sep 18, 2020 |  |
| Wakie | Wakie is a fun, friendly community of people who wake each other up in the morning. It’s a brand new way to wake up, made especially for those of us who hate the jarring noise of an alarm clock. |  | Seed | May 15, 2015 |  |
| Luciding | Luciding works on a cutting edge of VR and Neuroscience, to build an experience which gives you a full feeling immersion. In a dream.We're building a next big thing re-imagining our sleep approach - LucidCatcher, a wearable headband which put you into a pre-designed dream - with full control, which means you can touch, hear, see and feelevery detail inside of it. | $55K | Angel | Oct 31, 2014 |  |
| Peer5 | Peer5 operates the world’s largest peer-to-peer (p2p) content delivery network. Peer5's P2P CDN improves content delivery for live and on demand video streams. As video streaming continues to become more mainstream and the streams themselves become HD and 4K, traditional CDNs struggle to deliver high quality viewing experiences. Manypublishers try to keep up with peak demand by paying for more servers, many of which are almost never used and struggle with video playback. Not only is this expensive, but it's also inefficient, which is why at Peer5, they have created a P2P CDN to boost your video streaming capabilities. |  | Angel | Jul 22, 2014 |  |
| tbh | tbh is a developer of a mobile application designed to provide anonymous feedback to friends. The company's mobile application facilitates asking or answering questions, open text fields and invite abuse when combined with anonymity, enabling users to say things without repercussions and feel better about themselves from the positive feedbackon social networks. | $3.5M | Seed | Feb 25, 2013 |  |
| tbh | tbh is a developer of a mobile application designed to provide anonymous feedback to friends. The company's mobile application facilitates asking or answering questions, open text fields and invite abuse when combined with anonymity, enabling users to say things without repercussions and feel better about themselves from the positive feedbackon social networks. |  | Pre-Seed |  |  |

6 of 6 investments shown.

## Co-investors
- [Redpoint](https://shizune.co/investors/profile/redpoint-ventures) — VC Fund, 2 deals together
- [Social Capital Partners](https://shizune.co/investors/profile/social-capital-partners) — VC Fund, 2 deals together
- [Techstars](https://shizune.co/investors/profile/techstars) — VC Fund, 2 deals together
- [The House Fund](https://shizune.co/investors/profile/the-house-fund) — VC Fund, 2 deals together
- [Tuesday Capital](https://shizune.co/investors/profile/tuesday-capital) — VC Fund, 2 deals together
- [Bee Partners](https://shizune.co/investors/profile/bee-partners) — VC Fund, 1 deal together

## About Nventify Inc

VC Fund · Los Gatos, United States

Nventify Inc is an accelerate your webpages and mobile Apps with fast responsive images.

1 contacts available at Nventify Inc.

| Name | Title | Profile |
| --- | --- | --- |
| Jack Levin | Founder and CEO | https://shizune.co/investors/profile/jack-levin |

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## FAQ

### What does Jack Levin invest in?

Jack Levin invests primarily in Social Media, Mobile Apps and Pet startups, most often at Seed and Angel stage. Most of the 6 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Jack Levin's check size?

Jack Levin typically joins rounds of $150k–$3.5M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Jack Levin participates in.

### When did Jack Levin last invest?

The most recent investment recorded for Jack Levin closed in Sep 2020. Shizune tracks 6 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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