How many investments has Koolen and Partners made?

Koolen and Partners has 8 tracked investments, including 2 dated in the last 24 months.

What sectors does Koolen and Partners focus on?

Koolen and Partners focuses on Digital Health, E-commerce, Logistics & Supply Chain, Marketplaces.

Where is Koolen and Partners located?

Koolen and Partners is headquartered in Sao Paulo, BR.

Koolen and Partners

Venture capital

Sao Paulo · 3 people tracked

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Investment thesis

Koolen and Partners is an investment firm based in Sao Paulo, Brazil, with ties to the Netherlands. Its portfolio includes Brazilian internet and technology companies spanning digital product distribution, motorcycle courier logistics, men's grooming e-commerce, online art sales, and healthcare appointment booking.

Invests inDigital Health E-commerce Logistics & Supply Chain Marketplaces Sao Paulo

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Sao Paulo, BR

Instruments

Equity

Tracked investments

Unicorns

Team · 3 people

from curated & public directories

Marnix van der Ploeg· Co-Founder / Partner· Amsterdamin

Marnix van der Ploeg joined Booking.com in 2001 as the company's first controller and remained a key member of its finance team until 2014. During that period he focused on building out the overall finance function, managing global financial operations such as invoicing, payment and controlling systems, and supporting Booking.com's international expansion. He is now part of Koolen & Partners, a venture capital firm focused on Brazilian internet startups, alongside Kees Koolen and other executives from Booking.com and Buscapé.

marnix@eqtventures.com

Guga Stocco· Partner· Sao Paulo, Brazilin 𝕏

Guga Stocco is a Brazilian entrepreneur and board member at TOTVS with over 20 years of experience in technology and innovation. He co-founded Te Respondo (sold to Yahoo in 2005), Banco Original (the world's first digital bank), and Domo Invest, which backed three unicorn startups including Loggi, Hotmart, and Gympass. His career includes executive roles at Microsoft, where he contributed to MSN and Bing development, and positions at Verisign, Buscapé, and multiple corporate boards including Vinci Partners.

Kees Koolen· Angel· Netherlandsin 𝕏

Kees Koolen is founder, chairman, and CEO of Koolen Industries, an investment firm focused on clean energy generation, storage, and delivery through a portfolio of companies including battery manufacturers, solar projects, electric vehicle sharing, and energy software platforms. He previously served as CEO of Booking.com from 2008 to 2011 and as COO from 2001 to 2008, during which the company became the world's leading online hotel and accommodation reservation platform. Koolen was also Director of Uber International from 2012 to 2017, supporting the company's international expansion and scaling, and is a founding partner of EQT Ventures.

What they invest in

from 6 of 8 portfolio companies

AI & Machine Learning ×3Cleantech ×2Energy ×2SaaS ×2B2B Marketplaces ×1Climate Tech ×1Cloud Computing ×1Crypto & Web3 ×1

HQs:Netherlands×3Germany×1United States×1

Investments · 8 tracked

founders shown can be your intro path

By year:2025 · 2 2023 · 1 2022 · 1 2021 · 3 2016 · 18 dated

Holiduholidu.comSeries A · Jan 2016 · $5M

Munich, DE

Johannes Siebers(Founder)inMichael Siebers(Founder)

Co-investors83North Bootstrap Europe Claret Capital Partners coparion Key1 Capital Newtown Partners+6 more

Inncivioinncivio.com in 𝕏Pre-Seed · May 2025

Inncivio provides AI-powered in-app guidance for fintech platforms to increase user conversion and retention by helping customers complete financial actions in real time.

AI & Machine LearningFintechSaaS

Ghassen(Co-founder)Anna(Co-founder)Félix(Co-founder)

Co-investorsEntrepreneurs Roundtable Accelerator (ERA)

Mysten Labsmystenlabs.com in 𝕏Dec 2021

Mysten Labs builds infrastructure and tools for web3, focusing on making decentralized systems secure, reliable, and ready for mass adoption.

Cloud ComputingCrypto & Web3Deep TechDeveloper ToolsPalo Alto, US

Adeniyi Abiodun(Founder)inKostas Kryptos Chalkias(Founder)inSam Blackshear(Founder)in Evan Cheng(Founder)inGeorge Danezis(Founder)Kostas Chalkias(Founder)

Co-investorsa16z crypto Alumni Ventures Andreessen Horowitz Arrington Capital Basecamp Fund Big Brain Holdings +38 more

Parkbeeparkbee.comSeries B · Mar 2022 · $33M

ParkBee optimizes urban parking by connecting drivers, property owners, and municipalities through a digital platform that finds, books, and manages parking spaces across cities.

B2B MarketplacesMarketplacesMobility & TransportationPropTechAmsterdam, NL

Co-investorsTIIN Capital

Skoonskoon.world inSeries A · Oct 2023 · $5M

Skoon operates a distributed energy platform that orchestrates flexibility from batteries, EVs, and other distributed assets to relieve grid congestion, reduce renewable curtailment, and shorten grid connection wait times.

CleantechEnergyIoTSaaSNetherlands, NL

Co-investorsBlue Bear Capital Partners Graduate Entrepreneur

Sympowersympower.net inSeries B · Mar 2021 · $6M

Sympower operates a platform providing demand response and energy flexibility services that help balance national electricity grids across European markets.

AI & Machine LearningCleantechClimate TechEnergyEnterprise Software

Simon Bushell(Founder)inGeorg Rute(Founder)

Co-investorsACTIVATE CAPITAL PARTNERS Expon Capital Kickstart Innovation Rockstart StartGreen Capital ACTivate Capital +1 more

Wundermartwundermart.comJul 2021 · $12M

Wundermart provides AI-powered food and beverage solutions for hotels, including automated lobby shops, all-day breakfast options, and unmanned bars with 24/7 grab-and-go purchasing.

AI & Machine LearningFoodTechRetail Tech

Co-investorsSlingshot Ventures

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Florbs

Portfolio news

latest coverage across their companies

Amsterdam's Sympower raises additional €42 million funding to drive Europe's energy transition | EU-Startups

Sympower · eu-startups.com · Sep 16, 2025

Frequently asked questions

How many investments has Koolen and Partners made?: Koolen and Partners has 8 tracked investments, including 2 dated in the last 24 months.
What sectors does Koolen and Partners focus on?: Koolen and Partners focuses on Digital Health, E-commerce, Logistics & Supply Chain, Marketplaces.
Where is Koolen and Partners located?: Koolen and Partners is headquartered in Sao Paulo, BR.

Co-investors · 6

EQT Ventures

EQT Ventures is the venture capital arm within the EQT platform, backing early-stage European founders building what it calls Generation-Defining Companies.

Both backed · 1

Holidu

$2M – $50M

83North

83North is a global venture capital firm that invests in and helps entrepreneurs build large, category-defining companies, backing startups across multiple stages and sectors.

Both backed · 1

Holidu

$100K – $10M

Blue Bear Capital Partners

Blue Bear is a venture capital and early growth equity firm investing in AI-powered digital technology companies addressing energy, infrastructure, and climate challenges.

Both backed · 1

Skoon

Heartcore Capital

Heartcore Capital is an early-stage venture capital firm backing European founders from inception. It invests in startups from inception through Series A, and also invests in web3 protocols from idea to liquid tokens.

Possible Ventures

Possible Ventures is an early-stage venture firm backing mission-driven founders using frontier technology to solve major challenges across climate, energy, health and society.

$100K – $5M

Nauta Capital

Nauta Capital is a venture capital firm that invests in early-stage B2B software companies across Europe and the US.

$1.1M – $5.5M

Firms observed investing alongside Koolen and Partners, from public investor directories. Shared companies are the overlap with Koolen and Partners's recorded portfolio.

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