Data infrastructure

Briefer

Website
Founded 2022Origin source ↗Checked 2026-09-15

Overview

Briefer helps data scientists and analysts build interactive visualizations and data apps using a Notion-like interface.

Connect to your data sources, write SQL or Python, collaborate through comments and multiplayer editing, and run code in whichever compute environments you need.

Company description As recorded 2026-11-08
LinkedIn GitHub
Data infrastructureAnalyticsBusinessesMid marketSubscription

Founders & team

Previously Ergomake

Company history As recorded 2026-11-08

Lucas da Costa

Founder

I'm the founder and CEO at Briefer. Previously, I worked as a senior software engineer at Elastic and led software engineering teams at an early-stage startup in London. I used to maintain large OSS projects like Chai.js and Sinon.js and contributed to many others, including Jest. As an author, I wrote "Testing JavaScript Applications," published by Manning. I've also spoken in more than ten countries, and my content has been voluntarily translated into more than seven languages.

LinkedIn X
Founder profile As recorded 2026-09-15

Lucas Vieira

Founder

Lucas, is a software engineer and open-source enthusiast with a decade of experience, actively contributes to numerous open source projects. He used to maintain Chai.js, a popular JavaScript testing framework with 7.8k+ GitHub stars. As the former Head of Technology at Joga, he built a product from scratch, used by thousands in dozens of countries. Now, Lucas is the CTO of Ergomake, developing a product for developers to deploy preview environments for any stack.

LinkedIn X
Founder profile As recorded 2026-09-15
2team members reported
Source-reported As recorded 2026-09-15

Founded 2022 · Source

News & product activity

Sources & observations

Hacker News · Y Combinator

Profile depthenriched profile
Website observationsite error
Last website check2026-11-11
Location · source statedSão Paulo, SP, Brazil; Remote
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The source reports an inactive or acquired company; current product identity needs review.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationdescriptive evidenceclassified market and modelsourced peoplesourced founding yeardated product or funding activity
startup.observe Directory coverage · Sources & method