# David Walsh

> David Walsh is a pre-seed investor at One Equity Partners backing Software. See 2 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: [One Equity Partners](https://shizune.co/investors/profile/one-equity-partners-llc)
- Location: New York, United States
- Total investments: 2
- Last investment: Jan 2022
- Lead investor: 50%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/david-walsh-1015341a/
- X (Twitter): https://twitter.com/DavidWalshNY
- Website: https://www.davidarthurwalsh.com/
- Facebook: https://www.facebook.com/davidwalshbronxville

David Walsh is a pre-seed investor at One Equity Partners in New York focused on Software and VoIP. David Walsh is the Chief Executive Officer and President at IXnet.

## Contacts

5 contacts available for David Walsh: 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/david-walsh?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 2 | 100% |
| VoIP | 1 | 50% |
| Internet | 1 | 50% |
| Cloud Computing | 1 | 50% |
| Cloud Management | 1 | 50% |

6 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Pre-Seed | 1 | 50% |
| Series D | 1 | 50% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Ireland | 1 | 50% |
| United States | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Kalibr8 | Kalibr8 cloud optimization SaaS delivers automated and easy-to-use cloud-cost solutions to organizations through Managed Service Providers and Distributors. Kalibr8’s automated cloud optimization capabilities allow MSPs to manage their customer's cloud resources easily. No coding, No scripting, No hassle. | $1.2M | Pre-Seed | Jan 04, 2022 | https://www.kalibr8.io |
| NexTone Communications | NexTone Communications, headquartered in Rockville, Md., is focused on delivering Internet-based solutions for voice and data convergence to service providers. NexTone is in touch with the needs of the communications industry and is building products and solutions that facilitate the delivery of next generation applications. NexToneCommunication's solutions represent what's next in convergence. | $35M | Series D | Nov 07, 2005 | http://www.nextone.com/ |

2 of 2 investments shown.

## Co-investors
- [BCE Capital](https://shizune.co/investors/profile/bce-capital) — VC Fund, 1 deal together
- [Core Capital Partners](https://shizune.co/investors/profile/core-capital-partners) — VC Fund, 1 deal together
- [Mid-Atlantic Venture Funds](https://shizune.co/investors/profile/mid-atlantic-venture-funds) — VC Fund, 1 deal together
- [Safeguard Scientifics](https://shizune.co/investors/profile/safeguard-scientifics) — VC Fund, 1 deal together

## About One Equity Partners

VC Fund · New York, United States

One Equity Partners ("OEP") is a private equity investment behind compelling business ideas and strong management teams that invests in transactions that initiate strategic and operational changes in businesses to create long-term value.

5 contacts available at One Equity Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Andrew Oliver | Managing Director | https://shizune.co/investors/profile/andrew-oliver-2 |
| Fritz Hobbs | Senior Advisor | https://shizune.co/investors/profile/fritz-hobbs |
| JB Cherry | Senior Managing Director | https://shizune.co/investors/profile/jb-cherry |
| Joerg Zirener | Managing Director | https://shizune.co/investors/profile/joerg-zirener |
| Mark Chaichian | Advisor | https://shizune.co/investors/profile/mark-chaichian |

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### Similar country
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## Featured in investor lists
- [Hardware Angel Investors in Ireland](https://shizune.co/investors/hardware-angel-investors-ireland)

## FAQ

### What does David Walsh invest in?

David Walsh invests primarily in Software, VoIP and Internet startups, most often at Pre-Seed and Series D stage. Most of the 2 investments tracked by Shizune back companies in Ireland. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact David Walsh?

Public channels for David Walsh include LinkedIn, X (Twitter) 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 David Walsh last invest?

The most recent investment recorded for David Walsh closed in Jan 2022. Shizune tracks 2 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.

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