01Education
TrinityUA
Ambition, admitted.
Exam preparation, stronger English, and university admissions guidance for ambitious learners.
- English
- Exams
- Admissions
B4SF company directory · 01
Different ideas.
One city in motion.
Explore companies and independent projects connected to the B4SF ecosystem—from education and founder support to culture, events, and talent.
10 editorial profilesEducationCulture & mediaFounder programsEvents & communityTalent & ventureB4SF companyB4SF companyB4SF companyB4SF companyB4SF company
The directory · 02
Meet the projects.
Each B4SF profile is an original editorial guide based on public information and includes a direct route to the project’s official source.
02Culture & media
TeeSF
The city, kept.
A personal visual journal preserving San Francisco events, people, architecture, and details.
- Photography
- San Francisco
- Archive
03Founder programs
O1SF
Evidence before expansion.
An evidence-first U.S. market-entry program for international founders.
- Market entry
- Evidence
- Founders
04Events & community
HackathonSF
Build the room.
High-impact hackathons and technology gatherings designed to create useful connections.
- Hackathons
- Technology
- Community
05Talent & venture
kitSF
People are the venture.
A San Francisco venture model that invests in talented individuals and their professional growth.
- Talent
- Career growth
- Venture model
06B4SF company
ZUUZ
Turn sales email into pipeline.
ZUUZ connects to existing CRM and sales mailboxes to find deals, renewals and RFPs that are happening in email but never make it into the CRM.
- Sales
- CRM
- Automation
07B4SF company
Rigel
Skills before keywords.
A skills-first recruiting platform that scores candidates on what they can actually do, using transparent recruiter-controlled match weights instead of black-box keyword filters.
- Recruiting
- Talent
- Explainable AI
08B4SF company
Ask The W
Direct the work. Let agents execute.
A human-facing product layer around AI agents that turns a builder's direction into coordinated execution across specialized agents without losing context.
- AI Agents
- Orchestration
- Builders
09B4SF company
Insomnia (Insom.ai)
One platform for the security workflow.
A proprietary all-in-one cybersecurity toolkit for authorized testing, combining reconnaissance, application and API testing, network assessment, OSINT, exploit validation and AI-assisted workflows.
- Cybersecurity
- Security Testing
- AI
10B4SF company
Master My Mind
Personalized audio for habits and goals.
A personalized wellness and habit-building platform combining AI-generated affirmation scripts, own-voice recordings, and audio experiences designed around users' goals.
- Wellness
- AI
- Consumer
A growing index · 03
Built to become easier to explore as the ecosystem grows.
Future profiles can be grouped by field, audience, and the kind of work they contribute to San Francisco.