# Acorn Ventures

> Acorn Ventures is a VC fund in Bellevue backing Telecommunications and Mobile. See 4 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Bellevue, United States
- Total investments: 4
- Last investment: Feb 2016
- Lead investor: 0%
- Last updated: Aug 2026
- Website: http://www.acornventures.net

Acorn Ventures is an early-stage investment fund based in Bellevue, Washington. Acorn was founded by Rufus W. Lumry in 1991 after his retirement as EVP/CFO of McCaw Cellular Communications (now AT&T Wireless). Its mission is to find, fund and nurture early-stage companies that present extraordinary opportunities to make industry-changingleaps in technology and applications.

## Contacts

5 contacts available for Acorn Ventures. Shizune tracks 3 team members at Acorn Ventures. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/acorn-ventures-2?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Telecommunications | 2 | 50% |
| Mobile | 1 | 25% |
| Hardware | 1 | 25% |
| Internet | 1 | 25% |
| Software | 1 | 25% |

12 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 1 | 25% |
| Series A | 1 | 25% |
| Series C | 1 | 25% |
| Funding Round | 1 | 25% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Caren Seidle | Chief Financial Officer | 0 | — |
| Rufus Lumry | Founder & President | 0 | — |
| Scott Drum | Managing Director | 0 | — |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Flyp | Flyp, Inc. is a US-based telecommunications company focused on changing the global consumer communications experience. The company's proprietary platform delivers the highest quality voice and text communications in or out of network, while enabling the use of multiple phone numbers on a single device. For international customers, Flyp is thefirst and only solution that provides mobile users with a local US phone number on their device for high-quality, free calling and texting to and from any US phone number. | $5.8M | Seed | Feb 01, 2016 |  |
| Sanera Systems | At Sanera Systems, Inc. they are building a dream team to deliver innovative, new-paradigm system products. They are a well-funded startup (top tier VCs and visionaries) actively looking to fill positions in software, hardware, and marketing. | $10M |  | Mar 18, 2002 |  |
| RapidStream | RapidStream uses patent-pending RapidCore technology to deliver integrated virtual private network (VPN) and firewall solutions to service providers, data centers and enterprises that require a high degree of interoperability, scalability and security. | $25M | Series C | Jan 22, 2001 |  |
| Sanera Systems | At Sanera Systems, Inc. they are building a dream team to deliver innovative, new-paradigm system products. They are a well-funded startup (top tier VCs and visionaries) actively looking to fill positions in software, hardware, and marketing. | $17.5M | Series A | Sep 01, 2000 |  |

4 of 4 investments shown.

## Co-investors
- [CMEA Capital](https://shizune.co/investors/profile/cmea-capital) — VC Fund, 2 deals together
- [Storm Ventures](https://shizune.co/investors/profile/storm-ventures) — VC Fund, 2 deals together
- [Aspect Ventures](https://shizune.co/investors/profile/aspect-ventures) — VC Fund, 1 deal together
- Cabletron Systems — VC Fund, 1 deal together
- [Enterprise Partners](https://shizune.co/investors/profile/enterprise-partners) — VC Fund, 1 deal together
- [Goldman Sachs](https://shizune.co/investors/profile/goldman-sachs) — VC Fund, 1 deal together

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Acorn Ventures invest in?

Acorn Ventures invests primarily in Telecommunications, Mobile and Hardware startups, most often at Seed and Series A 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 Acorn Ventures?

Public channels for Acorn Ventures 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 Acorn Ventures?

The team at Acorn Ventures includes Caren Seidle (Chief Financial Officer), Rufus Lumry (Founder & President) and Scott Drum (Managing Director). 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.

# 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