Illuminating the
bright side of
B2B innovation
We partner with visionary founders at the earliest stages, investing in transformative B2B companies that are reshaping how the world does business.
Backing founders who build for enterprise
Lightside Capital focuses on early-stage B2B companies with strong technical moats, clear paths to revenue, and founders who deeply understand their customers' pain points. We invest at the Pre-Seed and Seed stages through our AngelList syndicate, bringing not just capital but strategic support and a network of operators.
Pre-Seed & Seed
Primary focus
Selective primary / secondary rounds outside these stages
B2B
Primary Focus
Scalable business models impacting legacy / mature sectors or being positively influenced by AI
Focus areas
We target B2B verticals with massive TAMs and durable competitive advantages.
Artificial Intelligence
AI-native platforms transforming workflows, decision-making, and automation across industries.
Agentic AI
Application-layer AI agents that autonomously execute complex B2B workflows — from sales and ops to finance and customer success.
Cybersecurity
Next-generation security solutions protecting enterprises from evolving digital threats.
Fintech & Payments
Infrastructure and tools modernizing financial operations, payments, and compliance.
Cloud Infrastructure
Foundational technologies powering scalable, resilient, and efficient cloud systems.
DevTools & Automation
Developer platforms and workflow automation driving engineering productivity and scale.
Data & Analytics
Enterprise data platforms enabling real-time insights, governance, and intelligent operations.
Enterprise & Hard Industries
Modern technology solutions for construction, real estate, manufacturing, and other legacy sectors modernizing their operations.
Health, Wellness & CPG
Scalable consumer and wellness brands leveraging technology for distribution, operations, and consumer engagement.
Interested in co-investing?
Join our syndicate on AngelList to access curated deal flow in the most promising B2B startups at the earliest stages.