# David Kosmayer

> David Kosmayer is a angel investor in Toronto backing SaaS and E-Commerce. See 1 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Location: Toronto, Canada
- Total investments: 1
- Last investment: Mar 2015
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/davidkosmayer
- X (Twitter): https://twitter.com/DavidKosmayer
- Website: http://www.bookmark.com
- Facebook: https://www.facebook.com/david.kosmayer

David Kosmayer is a angel investor in Toronto focused on SaaS and E-Commerce. David Kosmayer - Founder and CEO @ Bookmark

## Contacts

5 contacts available for David Kosmayer: 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-kosmayer?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| SaaS | 1 | 100% |
| E-Commerce | 1 | 100% |
| Publishing | 1 | 100% |
| Web Design | 1 | 100% |
| Web Development | 1 | 100% |

7 industries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Bookmark | The future of website creation and design is here! Bookmark is an AI-powered website builder which empowers people without any technical skills with the ability to instantly create an exceptional website and/or online store.Bookmark’s AI software AiDA (your Artificial intelligence design assistant) creates the first version of their websitein under two minutes by making selections from millions of combinations specific to each user's website needs. She then walks them through the process of editing content, design and sections. AiDA eliminates 90% of the pain points associated with building a website. | $951K | Angel | Mar 01, 2015 | https://bookmark.com |

1 of 1 investments shown.

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## FAQ

### What does David Kosmayer invest in?

David Kosmayer invests primarily in SaaS, E-Commerce and Publishing startups, most often at Angel stage. Most of the 1 investments tracked by Shizune back companies in Canada. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact David Kosmayer?

Public channels for David Kosmayer 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 Kosmayer last invest?

The most recent investment recorded for David Kosmayer closed in Mar 2015. Shizune tracks 1 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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