# Michel Guilhermier

> Michel Guilhermier is a pre-seed investor at Day One Entrepreneurs & Partners backing SaaS. See 2 investments, check sizes, portfolio and contact details…

- Type: Angel Investor
- Fund: [Day One Entrepreneurs & Partners](https://shizune.co/investors/profile/day-one-entrepreneurs-partners)
- Location: Paris, France
- Total investments: 2
- Last investment: Jan 2015
- Lead investor: 50%
- Last updated: Aug 2026
- LinkedIn: http://fr.linkedin.com/pub/michel-de-guilhermier/0/2b/937
- X (Twitter): https://twitter.com/mitchdeg

Michel Guilhermier is a pre-seed investor at Day One Entrepreneurs & Partners in Paris focused on SaaS and E-Commerce. Michel Guilhermier - Advisor @ Telescop

## Contacts

5 contacts available for Michel Guilhermier: 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/michel-guilhermier?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| SaaS | 1 | 50% |
| E-Commerce | 1 | 50% |
| Restaurants | 1 | 50% |
| Internet of Things | 1 | 50% |
| Information Technology | 1 | 50% |

### Stage

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

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Watchdog Systems | Technology company focused on anti-theft IoT products. Currently working on a connected lock for motorcycles. Made in France. Available worldwide. | $219K | Pre-Seed | Jan 01, 2015 | https://www.watchdog-system.com |
| Zenchef | Zenchef was created in 2010 and has more than 7000 customers in 15 different countries. Zenchef has developed a complete customer experience management tool (before, during and after the service) without commission or intermediary for restaurateurs. The restaurant owner remains independent! With only one software, manage all your reservations, yourwebsite, your digital menus, the click & collect, your reviews, your customer file, the digital payment by QR Code, your marketing campaigns... | $1.5M | Series A | Oct 25, 2013 | http://zenchef.com/en/ |

2 of 2 investments shown.

## Co-investors
- [Day One Entrepreneurs & Partners](https://shizune.co/investors/profile/day-one-entrepreneurs-partners) — VC Fund, 1 deal together
- [Elaia](https://shizune.co/investors/profile/elaia-partners) — VC Fund, 1 deal together

## About Day One Entrepreneurs & Partners

VC Fund · Paris, France

Day One Entrepreneurs & Partners has developed a unique model in France for financing and development of start-up. Day One E&P provides an intensive, involved and long term mentoring and its formidable network to actively help build some great companies. Day One E&P supports each startup in the long run, without any exit deadline.Day One E&P has already invested from 100K to 1 million euros in the seed rounds of more than 60 start-up : GuestSuite, Comitam, KOL, Invite1Chef, LegalPlace, Rapidle, SmartMonument, SOSAV, The French Talents... and others.

1 contacts available at Day One Entrepreneurs & Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Juan A. Hernandez | Co-founder | https://shizune.co/investors/profile/juan-a-hernandez-2488 |

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## FAQ

### What does Michel Guilhermier invest in?

Michel Guilhermier invests primarily in SaaS, E-Commerce and Restaurants startups, most often at Pre-Seed and Series A stage. Most of the 2 investments tracked by Shizune back companies in France. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Michel Guilhermier?

Public channels for Michel Guilhermier include LinkedIn and X (Twitter). 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 Michel Guilhermier last invest?

The most recent investment recorded for Michel Guilhermier closed in Jan 2015. 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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