21st Century Internet Venture Partners
VC Fund
San Francisco, United States
21st Century Internet Venture Partners is a VC fund in San Francisco focused on Internet and Software. 21st Century Internet was spawned by Hummer Winblad Venture Partners in November 1996 to harvest success from the advent of the new economy, just as they harvested success from the advent of the Enterprise Software industry.New economy companies are companies that are incarnating a new digital -- but most significantly better -- world byinnovating markets, value propositions and technology itself. They bring to the new economy experience, skills, a shared vision and capital to nurture opportunities along the path to success.
- Total investments:
- 7
- Last investment:
- Lead investor:
- 29%
Last updated:
For AI agents: llms.txt
Industries 21st Century Internet Venture Partners invests in
Stages 21st Century Internet Venture Partners invests in
Countries 21st Century Internet Venture Partners invests in
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Peter Ziebelman
|
|||
Investment Focus
Industry
- Internet 4 (57%)
- Software 2 (29%)
- B2B 1 (14%)
- Apps 1 (14%)
- SaaS 1 (14%)
Stage
- Funding Round 3 (43%)
- Series C 2 (29%)
- Seed 1 (14%)
Country
- United States 5 (71%)
- United Kingdom 1 (14%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
|
Peter Ziebelman
General Partner
|
General Partner | Total investments: 2 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Receiptable
|
Receiptable integrates retailers and payment networks to deliver digital receipts to consumers on their mobile phone.The company provides a platform that connects to retail systems and matches every transaction to an identifiable customer and their payment method of choice. Their smart receipts replace paper and are stored in an app.Receiptablewas founded in 2022 and is based in London, GB. | Seed / Jan 29, 2026 | |
Employease
|
Human resource software application delivered as a service over the Internet; applications and services for this platform include HR benefits and payroll administration, employee self-service, interactive voice response, and total benefits outsourcing. | $20M / May 11, 2000 | |
Cyveillance
|
Cyveillance, a world leader in cyber intelligence, provides an intelligence-led approach to security. Through continuous, comprehensive Internet monitoring and sophisticated intelligence analysis, Cyveillance proactively identifies and eliminates threats to information, infrastructure, individuals and their interactions, enabling its customers topreserve their reputation, revenues and customer trust. Cyveillance serves the Global 2000 and OEM Data Partners – protecting the majority of the Fortune 50, regional financial institutions nationwide, and more than 100 million global consumers through its partnerships with security and service providers that include Blue Coat, AOL and Microsoft. Cyveillance is a QinetiQ Company. | $24.5M / Series C / May 04, 2000 | |
AvantGo
|
AvantGo, Inc. provides software and services that enable and enhance the use of Internet-based content and corporate intranets to mobile devices, including personal digital assistants and Internet-enabled phones. The company licenses its AvantGo M-Business Server products and AvantGo mobile applications products to help its customers provide theiremployees, customers, suppliers, and business affiliates with easy access to business information. The AvantGo Mobile Internet service allows individuals to access Internet-based content and applications, and gives content providers and other businesses a new medium for reaching and interacting with new and existing customers. In February 2002, AvantGo was chosen by Microsoft for the participation in the Microsoft Mobility Partner Advisory Council. AvantGo provides solutions for the Microsoft Windows Powered Pocket PC 2002. | $31M / Apr 18, 2000 | |
Voquette
|
A comprehensive portal that puts the world of Web audio at your fingertips. | $17.3M / Mar 16, 2000 | |
More.com
|
More.com is an online health, beauty, and wellness store. | $43M / Series C / Nov 09, 1999 | |
|
Employease
|
Human resource software application delivered as a service over the Internet; applications and services for this platform include HR benefits and payroll administration, employee self-service, interactive voice response, and total benefits outsourcing. | $10M / Feb 22, 1999 |
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FAQ
What does 21st Century Internet Venture Partners invest in?
21st Century Internet Venture Partners invests primarily in Internet, Software and B2B startups, most often at Funding Round and Series C stage. Most of the 7 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 21st Century Internet Venture Partners?
Public channels for 21st Century Internet Venture Partners include 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.
Who are the partners at 21st Century Internet Venture Partners?
The team at 21st Century Internet Venture Partners includes Peter Ziebelman (General Partner). The Team section lists each member with their title, investment count and links.
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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