# David O'Hara

> David O'Hara is a startup investor at Arthur Ventures (Sioux Falls). See 0 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Arthur Ventures](https://shizune.co/investors/profile/arthur-ventures-llc)
- Location: Sioux Falls, United States
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/dave-ohara-5069813

David O'Hara is a startup investor at Arthur Ventures in Sioux Falls. Dave O’Hara is the Chief Financial Officer for the Online Services Division at Microsoft, one of five business segments of the company. Dave is responsible for investment strategy, financial reporting, budgeting, forecasting and analysis for the division. Dave's prior roles in Microsoft include Chief Operating Officer for MicrosoftAdvertising where his team is responsible for the operations of the business, data analysis and insights, business development and partnerships as well as collaboration with the field sales force, managing director of Corporate Development for the Platform and Services division (PSD) and Vice President of Business Development at Microsoft Business Solutions, where he also managed the international sales team. Before joining Microsoft, Dave was Vice President of Mergers and Acquisitions and Vice President for the International Division for Great Plains Software until 2001 when Great Plains was acquired by Microsoft. Before joining Great Plains, Dave was President of ICONtrol Inc., a development partner acquired by Great Plains in 1998. Previous to joining ICONtrol Inc., Dave served as Commissioner of Economic Development for the State of South Dakota. Dave holds a Bachelor’s degree in Economics and an MBA from the University of South Dakota.

## About Arthur Ventures

VC Fund · Minneapolis, United States

Arthur Ventures leads investments in B2B software companies in every region of the U.S. and Canada.

5 contacts available at Arthur Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Jake Olson | Associate/ Growth Equity Investor | https://shizune.co/investors/profile/jake-olson |
| Molly McFadden | Associate/ Growth Equity Investor | https://shizune.co/investors/profile/molly-mcfadden |
| Anna Talerico | Operating Partner | https://shizune.co/investors/profile/anna-talerico |
| David O'Hara | Venture Partner | https://shizune.co/investors/profile/dave-ohara |
| Dennis Erdle | Venture Partner | https://shizune.co/investors/profile/dennis-erdle |

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