Find Your Perfect
Co-Founder
Sparkline uses AI to match founders, co-founders, and freelancers within curated startup ecosystems based on skills, experience, and what you're building.
Built for Real Startups
Every feature is designed around how startup teams actually form and grow.
AI-Powered Matching
Vector embeddings match your skills and experience with the right opportunities and people — automatically.
Curated Ecosystems
Organizations run branded, gated communities. Join an open ecosystem or apply to start your own.
Real-Time Messaging
Direct and group messaging with founders and freelancers. Share files, send team offers, and build together.
Smart Opportunities
Post co-founder roles or freelance contracts. AI recommends the best candidates for each opening.
Rich Profiles
Showcase skills, experience, education, portfolio, and press mentions. Resumes supported but not required.
Secure & Scoped
Role-based access, ecosystem-scoped visibility, and row-level security on every query.
Sign Up to Team in Minutes
Four steps to finding the people your startup needs.
Sign Up
Create your account and pick your role — Founder, Co-Founder, or Freelancer.
Join an Ecosystem
Browse open communities, accept an invite, or apply to start your own.
Build Your Profile
Add your skills, experience, and what you're building. AI generates your matching profile.
Get Matched
AI surfaces the best-fit opportunities and people. Apply, message, and join teams.
A Place for Every Role
Whether you're leading, joining, or freelancing — Sparkline has you covered.
Founder
Build your startup profile, post co-founder and freelance roles, and assemble your team.
Get StartedCo-Founder
Get matched with startups that need a co-founder. Browse opportunities, apply, and join a team.
Get StartedFreelancer
Discover freelance contracts within curated ecosystems. Work with startups that need your skills.
Get StartedReady to Find Your Team?
Create your free account and start getting matched with the people your startup needs.