
Lightfield is an AI-native CRM, described by the company as “a world model of your business.” In September 2026, the company reported 5,000+ companies signed up since launching in November 2025.
a16z led Lightfield’s $47M Series A in September 2026. Our investment memo argues that each platform generation creates an opportunity for a new system of record, and that AI-native companies are choosing theirs now.
The memo points to a temporal context graph built from emails, calls, and meetings, and to teams switching from legacy CRMs. It also describes Keith Peiris and Henri Liriani’s experience building Tome to 25 million users: “they did the hardest thing founders can do: they pivoted.”
Keith Peiris and Henri Liriani co-founded Tome in 2020. The a16z memo says the presentation product grew to 25 million users before the founders pivoted to Lightfield.
Keith PeirisCo-Founder & CEOCo-founded Tome in 2020. Previously held product roles at Instagram, Glossier, and Citizen, and was an entrepreneur in residence at Greylock. Studied nanotechnology engineering at the University of Waterloo.LinkedIn ↗
Henri LirianiCo-FounderCo-founded Tome with Keith Peiris. Previously led the Human Interfaces group on Facebook Messenger. Co-authored Lightfield’s “Introducing skills” in April 2026.LinkedIn ↗Before Lightfield, the founders built Tome, an AI presentation tool that grew to 25 million users. They concluded it wasn't the company they wanted to build, cut the team to a core group of engineers, and spent a year in stealth rebuilding around a different problem. “It takes real guts to pivot, and even more so when the original product is working.”
Dan Rose
Coatue
In-person, with an HQ in San Francisco and an engineering hub in Cambridge, MA. 18 of 22 open roles are on-site — most at the San Francisco HQ, alongside the founders, with an engineering hub in Cambridge, MA. “Wednesdays work from home” appears across all 22 job descriptions as of 21 Sep 2026.
“We are building Lightfield to be the most helpful, valuable, and significant company in GTM tech.”
Lightfield
Researched Ashby job description
“We previously built Tome, which reached more than 25 million users, and our team brings experience from Llama, Instagram, Google, and Salesforce.”
Lightfield
Ashby job description

“We exist to help founders build better businesses.” The founding blog post frames the whole product around the founder's journey — day zero, first revenue, scale — and closes: “We're building for founders because we are founders.”
Keith Peiris & Henri Liriani
Co-founders
“We deliberately avoid premature abstraction. Summaries, fields, and dashboards are derived views—not the source of truth. Reality comes first. Everything else is computed from it.”
Keith Peiris & Henri Liriani
Co-founders
The company's own podcast framing in September 2025: a team of roughly 20 people at the time shipping features faster than companies with 20,000 — and going door-to-door to demo a modern CRM to SMBs.
During development, Lightfield's product team used the CRM itself to analyze customer conversations and pick what to build. “In this sense, Lightfield more than just a sales database, it's a customer intelligence layer.”
Dan Rose
Coatue
“We're building a tool that amplifies human judgment, not one that pretends to replace it entirely.” Customer-facing sends and critical field updates require human approval by design.
Keith Peiris
Co-founder & CEO
The live board includes Founding Account Executive, Founding Recruiter (Technical and GTM), and Founding Customer Success Manager — hires who get to define the function, not inherit it.
“The CRM, categorically, is perhaps the most complex and lowest satisfaction piece of software on Earth” “That problem is our opportunity.”
Keith Peiris
Co-founder & CEO

Before a September 2026 interview, Keith Peiris spent the morning “burning” his own startup's tokens, role-playing hiring plans inside Lightfield — what happens to pipeline with 30 early-career reps instead of 10, which customers they'd win, which they'd risk losing.
“Our Postgres fleet serves 5B+ queries a month — roughly 2,500 QPS steady state, with sustained spikes past 25,000 QPS — and database workload more than doubled last month.”
Lightfield
Software Engineer, Data Infrastructure (Staff) req
“Do things that don't scale. When our product was too early, we turned our “dead unicorn” office into a free coworking space for anyone willing to try Lightfield. Free desks for feedback. That's how we got our first real customers and a few months later, those early customers became our loudest advocates - and helped shape what Lightfield is today. Coming soon 👀”
Lightfield
@lightfld