Mariusz Gralewski
Co-Founder and Co-Chief Executive Officer @ DocPlanner
Warsaw, Poland
Mariusz Gralewski is a seed investor at DocPlanner in Warsaw focused on Internet and Education. Mariusz Gralewski is the Co-Founder and Co-Chief Executive Officer of ZnanyLekarz. Mariusz Gralewski attended the Warsaw University of Technology.
- Total investments:
- 11
- Last investment:
- Lead investor:
- 9%
Last updated:
For AI agents: llms.txt
Industries Mariusz Gralewski invests in
Stages Mariusz Gralewski invests in
Countries Mariusz Gralewski invests in
Round sizes
Round size
- Seed
- $127k–$4M
Investment Focus
Industry
- Internet 3 (27%)
- Education 3 (27%)
- EdTech 2 (18%)
- Software 2 (18%)
- E-Commerce 2 (18%)
Stage
- Seed 9 (82%)
- Series A 1 (9%)
Country
- Poland 5 (45%)
- Spain 1 (9%)
- France 1 (9%)
- Austria 1 (9%)
- United States 1 (9%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
FunVenture
|
FunVenture is a polish developer company that specializes in pixel art RPG adventures. | $1M / Seed / Aug 07, 2026 | |
AlohaCamp
|
AlohaCamp is an online booking portal for adventure travel. They offer tent, campervan, glamping, and cottage sites. It provides a referral program. | Seed / Oct 14, 2022 | |
Preply
|
Preply is a provider of an online tutoring marketplace intended to promote faster learning with one-on-one online tutors. The company's marketplace helps to find and book professional private tutors online from over 185 countries, enabling users to achieve their goals and speak confidently. | $4M / Seed / Jul 24, 2018 | |
StarOfService
|
StarOfService is establishing a new way of booking professional services. StarOfService is a new way to consume services close to home. In StarOfService, they know how it can be difficult to find the right person to do a job, and more to find one that is available nearby and within budget. Instead of wasting time searching, browsing and call, justtell us what you need. They will send you many quotes from their network of certified professionals in 24 hours. They can help you to: maintain your home, your events, learn new things, improve your well-being and more, and that, through the whole of France. By connecting local professionals directly to new customers, they allow these talented professionals to work independently so they can grow their business. They allow all professionals across France to achieve their personal and professional goals. | $10M / Series A / Sep 19, 2016 | |
|
Preply
|
Preply is a provider of an online tutoring marketplace intended to promote faster learning with one-on-one online tutors. The company's marketplace helps to find and book professional private tutors online from over 185 countries, enabling users to achieve their goals and speak confidently. | $1.3M / Seed / Jun 07, 2016 | |
Eversports
|
Eversports vision is to simplify the access to sport facilities in your environment. They thrive to build a unique community of sporters and to share their passion around the globe. Eversports connects its members directly with sport venues, helps them to book courts or courses and to meet sport partners. With Eversports you know exactly where andwhen to practice your favourite sport. Find all the information you need in one single interface. Eversports is the marketplace where sport providers and sporters get easily connected. | Seed / May 31, 2016 | |
Deskbookers
|
Deskbookers is an online platform for businesses and individuals to find flexible space... offices, meeting and training rooms and flex desks. The company is based in Amsterdam, the Netherlands. The site is currently available in Dutch, German, and English. | $1.6M / Seed / Dec 01, 2015 | |
Typeform
|
Typeform is a no-code SaaS platform with thoughtfully-designed tools that help companies grow their business by engaging with their audience. Offering people-friendly forms, quizzes, surveys, and asynchronous video solutions, Typeform turns digital interactions into human connection. Launched in 2012, Typeform drives more than 500 million digitalinteractions per year and integrates with hundreds of other business-critical tools like HubSpot, Calendly, and Slack, to name a few. Typeform is headquartered in Barcelona, Spain with an office in San Francisco, California, and has a globally-distributed workforce of over 450 people. | $1.3M / Seed / Sep 23, 2014 | |
Skubacz.pl Sp. z o.o
|
Skubacz.pl Sp. z o.o. operates an online platform, Restaumatic, that offers food ordering and delivery services. | $127K / Seed / Oct 25, 2012 | |
Brainly
|
Brainly is an online learning platform where students and parents get homework and study help from peers and experts.With the platform and its group of websites and apps, middle school and high school students are given the opportunity to ask questions freely to the online community comprised of students, parents, and teachers. The software isdeveloped with a mission to help students gain the confidence that comes from helping others and inspire them to learn in a collaborative community. Brainly is backed by Naspers, Kulczyk Investments, General Catalyst Partners, Point Nine Capital, Runa Capital, and Learn Capital.In 2009, Lukasz Haluch, Michał Borkowski, and Tomasz Kraus co-founded the company in Kraków, Malopolskie, Poland and is available in 35 countries. | $500K / Seed / Sep 13, 2012 | |
| See all 11 investments → | |||
Co-Investors
About DocPlanner
We want patients to find the perfect doctor and book an appointment in the most easy way. The patient journey should be enjoyable, and that's why we are always next to them: to help them find the best possible care. Anytime, anywhere.We also help doctors to better manage their practice and build their online reputation. With our integratedend-to-end solution, doctors are able not only to improve their online presence, but also to devote their time to what really matters: their patients.
DocPlanner Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Luca Puccioni
Co-Founder & CEO Italy
|
|||
Lucjan Samulowski
Cofounder & CPO
|
|||
|
Mariusz Gralewski
Co-Founder and Co-Chief Executive Officer
|
|||
Dawid Liberadzki
Head Of Design
|
|||
Michał Pękała
VP Growth
|
Access 48,091 investors
822 industries, 177 countries. Updated daily. Emails and phones included.
Browse database — It's Free!
Find investors for your startup
Search 48,091 investors by industry and country. Emails and phones included.
Similar Investors
Similar industry
Featured in Investor Lists
Recommended lists
FAQ
What does Mariusz Gralewski invest in?
Mariusz Gralewski invests primarily in Internet, Education and EdTech startups, most often at Seed and Series A stage. Most of the 11 investments tracked by Shizune back companies in Poland. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Mariusz Gralewski's check size?
Mariusz Gralewski typically joins rounds of $127k–$4M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Mariusz Gralewski participates in.
When did Mariusz Gralewski last invest?
The most recent investment recorded for Mariusz Gralewski closed in Aug 2026. Shizune tracks 11 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.
Contact your first 100 investors today
Find who invests in your industry, stage, and country. Download investor list with emails in 5 minutes.
Find investors — It's Free!
Continue with Google
Continue with LinkedIn
