Fundraising Fox

Justus Hammer

Founder

Founder at Mad Paws

Greater Sydney Area

Writes $20K – $200K checks · typically $50K

FoundedMad Paws

Find your path to Justus

165 people in our graph share verified history with Justus — schools, employers, funds. One of them is your warm intro.

Rouven DresselhausunlockedJustus: together at VICE Golf (2013–2026)
×4Justus: together at Ludwig-Maximilians-Universität München
×7Justus: together at Macquarie University

About

Justus Hammer is Co-Founder and CEO of Mad Paws, a company he co-founded and listed on the ASX before its sale to Rover.com, a Blackstone company. Born in Munich, Germany, he played professional basketball while completing a master's in Economics, and later earned a master's in Information Technology from Macquarie University in Australia. He founded the group-buying company Spreets in 2011 and sold it to Yahoo7 for $40 million within a year, and has since worked as an investor and advisor to numerous startups, including Vice Golf, which was acquired in 2023.

Founder at Mad Paws

Intro paths

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Experience

  1. Mad PawsCo-Founder, Chief Executive Officercurrent2020 — presentSydney, New South Wales, Australia
  2. Mad PawsFounding Partner and Advisorcurrent2014 — presentSydney
  3. VICE GolfInvestor and Advisor at Vice Golf Holdingscurrent2012 — presentMunich Area, Germany
  4. AirtaskerInvestor and Advisorcurrent2012 — present
  5. SellableFounder and Managing Director2015 — 2020Sydney, Australia
  6. Mon PurseBoard Member and Advisor2015 — 2017Sydney
  7. DocbookAdvisory Board Member2014 — 2016Sydney, Australia
  8. GemJoli.com.auAdvisory Board2014 — 2016Sydney, Australia
  9. Mint Wireless LimitedCMO2013 — 2015
  10. TempurerNon-Executive Director2011 — 2014Sydney, Australia
  11. SpreetsCMO / Co-Founder2010 — 2012Sydney, Australia
  12. GetPriceMarketing Manager2007 — 2010
  13. GoyellowMarketing Manager at GoYellow (Germany)2005 — 2007

Skills & more

Business Strategy20E-commerce35Digital Marketing62SEO26Online Marketing91Online Advertising74Email Marketing22Marketing Management5Affiliate Marketing11Web Analytics18Lead Generation40PPC10
+12 moreMarketing StrategySocial Media MarketingDigital StrategySocial MediaBrand DevelopmentNew Business DevelopmentDirect MarketingStart-upsGoogle AnalyticsGoogle AdwordsStrategic PlanningManagement

Languages German

From Justus's professional profile.

Frequently asked questions

Who is Justus Hammer?
Justus Hammer is Co-Founder and CEO of Mad Paws, a company he co-founded and listed on the ASX before its sale to Rover.com, a Blackstone company. Born in Munich, Germany, he played professional basketball while completing a master's in Economics, and later earned a master's in Information Technology from Macquarie University in Australia. He founded the group-buying company Spreets in 2011 and sold it to Yahoo7 for $40 million within a year, and has since worked as an investor and advisor to numerous startups, including Vice Golf, which was acquired in 2023.
Where does Justus Hammer work?
Justus Hammer is Founder of Mad Paws.
What check size does Justus Hammer write?
Justus Hammer typically writes checks of $20K – $200K.
What companies did Justus Hammer found?
Justus Hammer founded Mad Paws.
Where did Justus Hammer go to school?
Justus Hammer studied at Macquarie University (Master, Master of Commerce in Information Technologies); Ludwig-Maximilians-Universität München (Diploma, Macro Economics).

Same school

Shared employers