Long Journey Ventures
San Francisco, California · Invests in US · Website
Check size
$500K-$2M
Thesis
We are second believers in the magically weird. We back founders at concept stage who are building unconventional solutions with bold personalities that challenge the status quo. We provide capital, community, and genuine support—acting as a bubbe to our founders.
Likely not a fit for
No conventional ideas, no risk-averse founders, no non-technical founders lacking conviction
How they invest
- Lead or follow
- Usually leads
- Typical decision
- ~1 month
- Warm intro
- Not required
- Involvement
- Takes a board seat
- Fund status
- Actively deploying
- Decision process
- Partnership vote
Partners & team
6 contacts on file
Lee Jacobs
Founder and General Partner · Primary contact
Carolena Leon
Partner
Brian Balfour
Venture Partner
Cyan Banister
Investor
Arielle Zuckerberg
General Partner
Pascal Levy-Garboua
Venture Partner
Portfolio
Notion is an AI-powered workspace that helps teams capture knowledge, find answers, and automate projects, enhancing productivity and collaboration.
Thumbtack is a technology company helping millions of people confidently care for and improve their homes by connecting homeowners with local service professionals.
Affirm is a payment network that empowers consumers to pay over time with flexible payment plans and no hidden fees. It helps merchants drive growth by providing a seamless financing option at checkout, enhancing the shopping experience across various categories including electronics, apparel, and travel.
Carta provides an end-to-end suite connecting private capital, offering solutions for equity management and fund management, including cap table management, valuations, fund administration, and more.
Babylon Biosciences focuses on providing innovative solutions for families, particularly in the field of biotechnology and drug discovery.
DeepMind is a leading AI research lab that focuses on developing advanced AI systems and models to solve complex problems and enhance understanding in various fields, including life sciences and climate change.
Deno is the open-source JavaScript runtime for the modern web, built on web standards with zero-config TypeScript, unmatched security, and a complete built-in toolchain.
Density is a company that provides self-installable occupancy sensors and analytics software designed to help businesses understand how their spaces are being used. Their innovative solutions, including the real-time radar sensor 'Waffle', enable accurate people counting while prioritizing privacy.
Diamond Foundry accelerates mega tech industries with single-crystal diamond wafers, addressing thermal challenges in AI, electric vehicles, and wireless communication.
Affordable home insurance made easy, offering various types of insurance including homeowners, landlord, mobile home, high-value home, condo, and flood insurance, as well as auto insurance and mortgage services.
Justpoint uses AI and scientific investigation to detect dangerous products and hidden toxins in everyday items, protecting consumers from health risks associated with toxic substances.
Recent activity
- Mar 2026
Atlys
Series C · Participated
- Feb 2026
The Compression Company
Pre-Seed · Lead
- Jan 2026
Unusual
Seed · Participated
- Dec 2025
TrueMed
Series A · Participated
- Oct 2025
Crusoe Energy
Series E · Participated
- Jul 2025
Vultron
Series A · Lead
- Jun 2024
Together AI
Seed · Lead
- Mar 2024
TrueMed
Seed · Lead
Long Journey Ventures in the news
TechCrunch
This startup wants to make enterprise software look more like a prompt
4 months ago
Entrackr
Visa processing startup Atlys raises $36 Mn in Series C funding
4 months ago
Axios
Apple's buy, Frore's $1.6b for data center cooling, and Apollo's Syntegon talks
4 months ago
PR Newswire
Monalee Rebrands as Artemis and Raises $6 Million to Launch the Operating System for Distributed Energy
4 months ago
Newcomer | Substack
Startups Target the Tricky Task of Making AI Seem More Human
4 months ago
AlleyWatch
The 12 Largest NYC Tech Startup Funding Rounds of January 2026
5 months ago
Pulse 2.0
Truemed Closes $34 Million Series A To Unlock HSA/FSA Funds For Lifestyle Interventions
7 months ago
EdTech Innovation Hub
Nectir secures $6.3M seed funding to advance AI personalized Learning in education
7 months ago
AlleyWatch
The Weekly Notable Startup Funding Report: 11/24/25
8 months ago
Data Center Dynamics
US startup Substrate raises $100m for development of lithography tools to challenge ASML
8 months ago
Capital Brief
‘ChatGPT is my CTO’: How solo founder Alisa Wu raised $2m in just 36 hours
9 months ago
Bloomberg.com
Cyan Banister, Arielle Zuckerberg Firm Raises $181.8 Million to Back ‘Magical Weirdos’
Mar 2025
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