# Alexander Katz

> Alexander Katz is a private equity investor at Sixth Street backing Software. See 4 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Sixth Street](https://shizune.co/investors/profile/sixthstreet)
- Location: New City, United States
- Total investments: 4
- Last investment: Jul 2026
- Lead investor: 75%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/alexander-katz-022b5928
- Website: https://sixthstreetgrowth.com/team/alex-katz

Alexander Katz is a Managing Director at Sixth Street Growth.

## Contacts

5 contacts available for Alexander Katz: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/alexander-katz-3fac?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 2 | 50% |
| Enterprise Software | 2 | 50% |
| Billing | 1 | 25% |
| Security | 1 | 25% |
| Compliance | 1 | 25% |

14 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Private Equity | 2 | 50% |
| Series D | 1 | 25% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Candid Health | Candid Health develops software that supports healthcare organizations in managing revenue cycle operations. Its platform automates and coordinates processes such as medical coding, claims submission, payment posting, denial management, and reimbursement workflows. The company integrates with electronic health record and practice management systemsto facilitate the exchange of clinical and billing data across healthcare providers and payers. It provides tools that enable healthcare organizations to monitor billing performance, identify claim issues, and manage revenue cycle activities through a centralized system. The company also offers analytics and workflow capabilities that support administrative and financial operations within healthcare practices. | $120M | Series D | Jul 22, 2026 |  |
| Keyfactor | Keyfactor, formerly Certified Security Solutions (CSS), is a leading provider of secure digital identity management solutions that enables organizations to confirm authenticity, and ensure the right things are interacting in the right ways in our connected world.From an enterprise managing millions of devices and applications that affect people’slives every day, to a manufacturer aiming to ensure its product will function safely throughout its life cycle, Keyfactor empowers global enterprises with the freedom to master every digital identity. Its clients are the most innovative brands in the industries where trust and reliability matter most. | $1B | Private Equity | Jul 06, 2026 |  |
| Kiteworks | Kiteworks is a cybersecurity company that provides secure communication and file-sharing solutions for businesses and organizations. The company focuses on protecting sensitive information by offering a secure platform that enables safe and compliant sharing of files, emails, and other forms of communication. Kiteworks offers a comprehensiveplatform that integrates a variety of communication and file-sharing tools designed to ensure the security and compliance of data exchanges. The platform allows users to securely share files both internally and externally, adhering to various data protection regulations. It provides end-to-end email encryption, safeguarding sensitive information during transmission. Additionally, Kiteworks facilitates secure managed file transfer (MFT), enabling the transfer of large files and sensitive data with detailed audit trails and compliance features. Organizations can also leverage secure APIs to embed file sharing, email, and communication functions directly into their existing applications. Furthermore, Kiteworks aids in meeting regulatory requirements such as GDPR, HIPAA, and FedRAMP by offering robust compliance and reporting features, ensuring comprehensive audit trails and adherence to industry standards. | $456M | Private Equity | Aug 14, 2024 |  |
| Keyfactor | Keyfactor, formerly Certified Security Solutions (CSS), is a leading provider of secure digital identity management solutions that enables organizations to confirm authenticity, and ensure the right things are interacting in the right ways in our connected world.From an enterprise managing millions of devices and applications that affect people’slives every day, to a manufacturer aiming to ensure its product will function safely throughout its life cycle, Keyfactor empowers global enterprises with the freedom to master every digital identity. Its clients are the most innovative brands in the industries where trust and reliability matter most. |  | Private Equity | Oct 24, 2023 |  |

4 of 4 investments shown.

## Co-investors
- [Insight Partners](https://shizune.co/investors/profile/insight-partners) — VC Fund, 3 deals together
- [Summit Partners](https://shizune.co/investors/profile/summit-partners) — VC Fund, 2 deals together
- [8VC](https://shizune.co/investors/profile/8vc) — VC Fund, 1 deal together
- [Oak HC/FT](https://shizune.co/investors/profile/oak-hc-ft-partners) — VC Fund, 1 deal together
- [Y Combinator](https://shizune.co/investors/profile/y-combinator) — VC Fund, 1 deal together

## About Sixth Street

VC Fund · San Francisco, United States

Sixth Street Partners is a financial services company that provides solutions for companies. Their solutions include healthcare, digital media, fund, real estate, and market solutions. Their market solutions platform provides products for markets, market investing, and market solutions.

5 contacts available at Sixth Street.

| Name | Title | Profile |
| --- | --- | --- |
| Alan Waxman | Co-Founder and CEO | https://shizune.co/investors/profile/alan-waxman |
| Alexander Katz | Managing Director | — |
| Bornah Moghbel | Co-Founder & Partner | https://shizune.co/investors/profile/bornah-moghbel |
| David Stiepleman | Co-President, Co-Founder, Co-COO | https://shizune.co/investors/profile/david-stiepleman |
| Joshua Easterly | Co-President and Co-Founding Partner | — |

## Similar investors

### Similar stage
- [Foresight Group](https://shizune.co/investors/profile/foresight-group) — VC Fund
- [YFM Equity Partners](https://shizune.co/investors/profile/yfm-equity-partners) — VC Fund
- [Fondaction](https://shizune.co/investors/profile/fondaction) — VC Fund

## FAQ

### What does Alexander Katz invest in?

Alexander Katz invests primarily in Software, Enterprise Software and Billing startups, most often at Private Equity and Series D stage. Most of the 4 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Alexander Katz?

Public channels for Alexander Katz include LinkedIn and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### When did Alexander Katz last invest?

The most recent investment recorded for Alexander Katz closed in Jul 2026. Shizune tracks 4 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