# David Ruttenberg

> David Ruttenberg is a startup investor at Lakewest Venture Partners. See 0 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Lakewest Venture Partners](https://shizune.co/investors/profile/lakewest-venture-partners)
- Last updated: Aug 2026

David Ruttenberg is a startup investor at Lakewest Venture Partners.

## About Lakewest Venture Partners

VC Fund · Chicago, United States

Lakewest Venture Partners is an affiliate of Lakewest, Inc., a real estate and private equity company. In its first several years, Lakewest's investments and participation in companies ranged from passive interest at $50,000-$100,000 to lead seed-stage investments in excess of $1,000,000 with board involvement. Since partnering with DundeeVenture Capital, Lakewest and Dundee now look to make lead seed-stage investments from $250,000-$750,000 in high-growth, early-stage technology companies. It is led by Buzz Ruttenberg, David Mann, and Jonathan McCulloch and was formed in 2013 to pursue seed and early-stage investment opportunities primarily in Chicago.

3 contacts available at Lakewest Venture Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Jonathan McCulloch | Co-Founder and Principal | https://shizune.co/investors/profile/jonathan-mcculloch |
| David Mann | Principal | https://shizune.co/investors/profile/david-mann-2 |
| David Ruttenberg | President | https://shizune.co/investors/profile/david-ruttenberg |

## FAQ

### 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.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co