Eric Ciarla
About Eric Ciarla
Eric Ciarla is a co-founder of Firecrawl, a web data API for AI agents. Firecrawl's about page lists him as Co-Founder and Chief Growth Officer. Earlier press coverage, including TechCrunch via Yahoo Finance, called him CMO. His site says he writes about AI, startup marketing, go-to-market strategy and building developer tools.
Before Firecrawl he co-founded Mendable, an AI search product that was part of Y Combinator's S22 batch, and SideGuide. Firecrawl's about page says the team previously built Mendable and SideGuide. Crunchbase lists him as the founder of three organizations and based in San Francisco.
Earlier roles listed on ZoomInfo include data engineer at Fracta and data scientist at Ford in 2020. He studied economics and philosophy at the University of New Hampshire.
We found limited public information on his angel investing. The one angel investment we could confirm is Lightsage's seed round. Crunchbase lists him as an investor in that round, and Hackernoon's coverage names him among the participating operator angels. We did not find a public portfolio list, a stated number of investments or a fund.
Lightsage announced a $4M seed round in September 2026, led by Nexus Venture Partners. Hackernoon says the round included operator angels from companies such as Salesforce, Postman, Apollo and Resend, along with Firecrawl co-founder Eric Ciarla. Lightsage builds tools that help software makers get found and adopted by AI agents. Crunchbase describes it as tracking how AI engines and coding agents find and use software APIs. Reports say early users include Firecrawl.
He has not published an investment thesis, preferred stage or check size that we could find. The only confirmed deal is a seed-stage AI developer-tools company. That is a single data point, so don't read it as a stated focus. His own work and writing center on developer tools, AI agents and go-to-market. Founders should ask him directly about stage, sectors and check size.
- Lightsage: helps software makers get adopted by AI agents. Eric Ciarla took part in its $4M seed round led by Nexus Venture Partners, announced September 2026.
- crunchbase.com/organization/lightsage
- hackernoon.com/lightsage-raises-$4m-led-by-nexus-to-build-the-growth-s
- raising.fi/news/lightsage-seed-september-2026
- crunchbase.com/person/eric-ciarla
- firecrawl.dev/about
- ericciarla.com
- zoominfo.com/p/Eric-Ciarla/5526678847
- finance.yahoo.com/news/ai-crawler-firecrawl-raises-14-110000951.html
Investing activity
Eric Ciarla appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $4M. The most recent is Lightsage (Seed, $4M, Sep 2026).
Eric Ciarla most often invests alongside Nexus Venture Partners, Robert Chatwani, Ivan Burazin and Steven Tamm, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Eric Ciarla
Is Eric Ciarla an angel investor?
Crunchbase lists him as an investor in Lightsage's seed round, and press coverage names him among its angels. We found no other confirmed angel investments.
What companies has Eric Ciarla built?
He co-founded Firecrawl, a web data API for AI agents. He also co-founded Mendable, an AI search product from Y Combinator's S22 batch, and SideGuide.
What is Eric Ciarla's check size?
He has not published a check size, and we found no public figure. Lightsage's $4M seed was the round total, not his check.
Which AI startups has Eric Ciarla invested in?
The one we could confirm is Lightsage, which raised a $4M seed in September 2026. Lightsage helps software makers get adopted by AI agents.
What can a founder pitch Eric Ciarla for?
His public background is in developer tools, AI infrastructure and go-to-market. His confirmed investment is in that area, but he has not stated a thesis. Pitches tied to developer adoption or marketing to technical users fit his experience.
Where can I contact Eric Ciarla?
He is active on X as @ericciarla and has a LinkedIn profile and a personal site. We found no public statement on how he prefers to receive pitches.
What AI companies has Eric Ciarla invested in?
Eric Ciarla's AI investments include Lightsage. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Eric Ciarla invest at?
In the rounds tracked on Lounge, Eric Ciarla has invested at Seed, with a median round of $4M.
Who does Eric Ciarla co-invest with?
Eric Ciarla's most frequent co-investors on Lounge are Nexus Venture Partners (1 deal), Robert Chatwani (1 deal), Ivan Burazin (1 deal), Steven Tamm (1 deal) and Hila Qu (1 deal).
How can founders reach Eric Ciarla?
Founders on Lounge can see Eric Ciarla's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with them under Warm Paths, and add Eric Ciarla to their Investor Pipeline to track the conversation.