Matt Serna
Head of GTM
GTM, Marketing
San Francisco, California, USA
Listen to Matt’s Podcast!
Matt Serna is Head of GTM at Lightfield, the fastest growing AI-native CRM. At Lightfield, he focuses on working with start-ups to deploy agents that help acquire, engage, and retain new customers. Prior to Lightfield, he served as CMO at Replicant – a market leader in AI customer service, and at Notable – a healthcare AI company that automates millions of back office workflows for healthcare providers. Matt works with transformative, category-defining AI companies to accelerate their growth.
Lightfield:
Three things separate Lightfield from every other player in the AI CRM space: Architectural differentiation. Most “AI CRMs” bolt a chatbot onto a traditional database. Lightfield was built from scratch with the AI agent as the foundational architecture, not a layer on top. The system uses a schema-less memory architecture—storing customer data as semantic key-value pairs instead of rigid columns. The agent creates fields on the fly based on what it learns from conversations, then backfills them across historical records. No migrations, no configuration. It maintains near-perfect recall across a ~1M token context window, reasoning across thousands of records simultaneously with 95%+ accuracy.
Proven ability to build products people love at massive scale. Keith grew Instagram Direct to 500 million MAU. Henri rebuilt Facebook Messenger from the ground up. Together they built Tome to 25 million users—the fastest productivity tool ever to hit one million. They’ve done this before, repeatedly, at both Big Tech and startup scale. Most CRM founders come from enterprise sales backgrounds. Keith and Henri come from consumer product design—which is why Lightfield’s users spend more time in the product than in Instagram or ChatGPT. Complete customer context, not just record-keeping. Legacy CRMs are empty databases waiting for humans to enter data. They don’t. Lightfield captures everything automatically—meetings, emails, web research, product analytics—and builds a living, queryable memory of every customer relationship. That complete context means the work the agent produces—follow-ups, analysis, pipeline updates—is dramatically higher quality than anything built on incomplete, manually entered data.
Since launching Lightfield publicly in November 2025, nearly 2,000 companies have signed up in under three months, driven almost entirely by word-of-mouth. Over 100 companies from recent YC batches have chosen Lightfield. Paying customers spend more time in Lightfield than users spend in Instagram or ChatGPT. Power users interact with the CRM agent over 400 times per week with average session lengths of 29 minutes. The company was recently featured as SaaStr’s AI App of the Week and profiled by VentureBeat, Nasdaq, and Contrary Research.
Lightfield intends to be the system of record for every company’s go-to-market operation—the central nervous system that knows everything about your customers and does work on your behalf. The long-term vision is that CRM stops being a place you enter data and becomes a system that understands your business and acts. Sales and marketing is the largest expense item for B2B SaaS companies—20-40% of revenue—of which 70-85% is labor. Lightfield is positioned to replace both the labor and the software, fundamentally changing the economics of go-to-market. The founders believe that agentic CRM is rapidly becoming the market standard, and Lightfield is building to be the category leader.
Matt Serna is also featured on our premiere Features Page, and you can read the Podcast Interview Transcript.
