# David Su

> David Su is a Series C investor at Norwest (San Francisco) backing Software and SaaS. See 5 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Norwest](https://shizune.co/investors/profile/norwest-venture-partners)
- Location: San Francisco, United States
- Total investments: 5
- Last investment: Oct 2023
- Lead investor: 100%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/david-su-872464/

David Su is a Series C investor at Norwest in San Francisco focused on Software and SaaS. Dao Xian Su serves as the Chief Technology Officer of Columbu.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 3 | 60% |
| SaaS | 2 | 40% |
| B2B | 1 | 20% |
| Events | 1 | 20% |
| Internet | 1 | 20% |

15 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series C | 2 | 40% |
| Funding Round | 2 | 40% |
| Series D | 1 | 20% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| GAN Integrity | GAN Integrity is a provider of a completely integrated compliance solution for global businesses. GAN Integrity’s all-in-one platform for compliance teams is the first of its kind, connecting all aspects of a corporate compliance program into a single, cloud-based solution. Today, many of the world's leading brands trust GAN’s innovativesoftware to help them better manage compliance. |  | Series C | Oct 26, 2023 |  |
| Swing Education | Swing provides substitute teachers to fill hard-to-fill staff absences. On average, U.S. students spend 5% of the typical school year with substitute teachers, which translates to over 6 months of their K-12 school career.Failing to fill a substitute teacher opening not only impacts students, but causes teachers, school leaders, andadministrators to shuffle around to cover gaps. There's also the time administrators spend on the logistical issues of finding, recruiting, screening, scheduling, and paying contract substitute teachers. Swing's marketplace helps schools cover hard-to-fill absences by seamlessly providing substitute teachers on-demand. | $38M | Series C | Jun 01, 2023 |  |
| Classy | Classy is a social enterprise that helps nonprofits maximize their impact through a suite of world-class online fundraising tools. The company also hosts the Collaborative and Classy Awards to recognize excellence in social innovation.Since 2011, they've powered tens of millions of donations from over 190 countries and raised over $2 billionfor social good. | $118M | Series D | Apr 20, 2021 |  |
| The Rainmaker Group | The Rainmaker Group, an Atlanta, GA, software as a service provider of revenue management and profit optimization solutions to multi-family housing, gaming properties and hospitality companies. | $33.8M |  |  |  |
| Manta | Manta helps small businesses profit, connect and grow through the largest online community dedicated entirely to small business. Millions of people come to Manta each day to buy from, partner with and connect to companies. By joining Manta, small businesses easily harness the power of the Internet. Get visible, grow your business for free atwww.manta.com. | $44M |  |  |  |

5 of 5 investments shown.

## Co-investors
- [Aquiline Technology Growth](https://shizune.co/investors/profile/aquiline-technology-growth) — VC Fund, 1 deal together
- [Bela Juju Ventures](https://shizune.co/investors/profile/bela-juju-ventures) — VC Fund, 1 deal together
- [Eastward Capital Partners](https://shizune.co/investors/profile/eastward-capital-partners) — VC Fund, 1 deal together
- [Hinge Capital](https://shizune.co/investors/profile/hinge-capital) — VC Fund, 1 deal together
- [Reach Capital](https://shizune.co/investors/profile/reach-capital) — VC Fund, 1 deal together
- [Salesforce Ventures](https://shizune.co/investors/profile/salesforce-ventures) — VC Fund, 1 deal together

## About Norwest

VC Fund · Palo Alto, United States

Norwest is a venture capital and growth equity investment firm that specializes in venture and growth equity companies. Since its inception, it has invested in more than 600 companies and partnered with over 140 active companies across our venture and growth equity portfolio. The firm invests in early to late-stage companies across a wide range ofsectors with a focus on consumer, enterprise, and healthcare. It offers a deep network of connections, operating experience, and a wide range of impactful services to help CEOs and founders scale their businesses.

5 contacts available at Norwest.

| Name | Title | Profile |
| --- | --- | --- |
| Brian Matesic | Principal | https://shizune.co/investors/profile/brian-matesic-85fa |
| Dave Zilberman | General Partner | https://shizune.co/investors/profile/david-zilberman |
| David Su | Partner | https://shizune.co/investors/profile/david-su-2 |
| Dror Nahumi | General Partner | https://shizune.co/investors/profile/dror-nahumi |
| Edward Yip | Partner | https://shizune.co/investors/profile/edward-yip |

## Similar investors

### Similar stage
- [Sequoia Capital](https://shizune.co/investors/profile/sequoia-capital) — VC Fund
- [New Enterprise Associates](https://shizune.co/investors/profile/new-enterprise-associates) — VC Fund
- [Bessemer Venture Partners](https://shizune.co/investors/profile/bessemer-venture-partners) — VC Fund

## FAQ

### What does David Su invest in?

David Su invests primarily in Software, SaaS and B2B startups, most often at Series C and Funding Round stage. Most of the 5 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 David Su last invest?

The most recent investment recorded for David Su closed in Oct 2023. Shizune tracks 5 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.

# 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