One Month
DefunctYC S13New York City, US Β· Founded 2013 Β· 1 employees Β· 2 known investors
One Month offers online courses in computer programming, coding, and business skills, including Ruby, Rails, Python, JavaScript, and project management. The platform teaches beginners and developers through expert-led courses aimed at accelerating their careers.
Founders & leadershipΒ· Y Combinator alumni (S13)
One Month was founded in 2013 by Mattan Griffel and Chris Castiglione.
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Mattan GriffelinπCo-Founder & CEO2013β2017Mattan Griffel studied philosophy and finance at New York University and co-founded Ophelia, a Y Combinator-backed opioid recovery platform. He is faculty at Columbia Business School and an Innovation Fellow at the Lang Center for Entrepreneurship.30 Under 30 2015
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Chris CastiglioneinπCo-founder & CEO2017β2021Chris Castiglione is a co-founder of Console.xyz and teaches as an adjunct professor at Columbia Business School.
Investors Β· 2
Competitors Β· 3
by search overlapCareer Karma185 shared keywordsCareer Karma helps individuals explore and compare career training programs and matches them to education pathways based on their interests, financial needs, and learning preferences. It covers fields ranging from tech and AI to skilled trades and other careers.
Fullstack Academy146 shared keywordsFullstack Academy provides immersive online bootcamps and short courses in technology skills including full-stack development, data science, cybersecurity, and digital marketing for corporate teams and individual learners. The company serves Fortune 500 companies and professionals seeking to upskill or transition into tech roles.
CourseGuide129 shared keywordsCourse Report is a platform for comparing coding bootcamps, short courses, and certification prep programs, using verified student reviews to help users find a fit. It serves career changers and professionals looking to gain tech and job-ready skills.
Companies competing with One Month for the same Google search keywords, organic and paid, via search-intersection analysis.
Frequently asked questions
- What does One Month do?
- One Month offers online courses in computer programming, coding, and business skills, including Ruby, Rails, Python, JavaScript, and project management. The platform teaches beginners and developers through expert-led courses aimed at accelerating their careers.
- Who founded One Month?
- One Month was founded by Mattan Griffel, Chris Castiglione in 2013.
- Who are One Month's investors?
- One Month's investors include FundersClub, Y Combinator.
- Where is One Month headquartered?
- One Month is headquartered in New York City, US.



