• Signal
  • Posts
  • Signals by Signal - Week 23

Signals by Signal - Week 23

Preview the power of data-driven intelligence in private markets

Welcome to Signals by Signal!

Get a sneak peek of what our platform can do with this data-driven newsletter, crafted to help investors discover stealth founders, emerging startups, and growing companies. Enjoy this week’s edition — we’re excited to have you with us!

Heads up! The data in the Signals by Signal newsletter are intentionally delayed to give our customers a strategic advantage. Access real-time signals by requesting a free trial.

Stealth Detector

Signal detects thousands of new stealth founders every month. Here’s a glimpse of some of the individuals operating under the radar, along with their backgrounds and expertise.

Ralph Romanos
Paris, France· Stealth since May 2025

Background: Ekimetrics, Pearltrees

Education: University of Cambridge

Doug Wightman
Mountain View, United States · Stealth since June 2025

Experience: Grok, Google

Education: Stanford University, Queen’s University

Xiao Wang
Palo Alto, United States· Stealth since May 2025

Background: Bytedance, Hillhouse Investment

Education: Stanford University

Newly launched startups

Signal uncovers newly launched startups ready to disrupt their industries. This section highlights some of the recent startups we spotted.

Deepgov
Zurich, Switzerland
Founded by: Dr. David Dao

Description: Configurable AI Politicians for Capital Allocation and Governance

Website: deepgov.org

Saoirse Labs
Cork, Ireland
Founded by: Peter David Fagan

Description: Building open, accessible and privacy-first AI products to empower preventative healthcare and human wellbeing.

Rectify
Cambridge, United Kingdom
Founded by: Fionn O'Connell, Gavin McQuaid, Greg Wallace

Description: Rectify helps manufacturing teams stay ahead of supplier delays, stockouts, and QA issues.

Growing companies

Signal monitors fast-growing companies in real-time, offering updates on key performance metrics, funding, team growth and much more. Here are some of the growing companies we recently spotted.

Industry: Cybersecurity

Location: New York, United States

What they do: Develop innovative open-source solutions designed to anticipate cyber threats, identify security gaps, and strengthen organizational security posture.

Last funding date: Mar. 7, 2025

Latest funding amount: $34.9M

Team: Samuel Hassine, Julien Richard

Signal: Filigran has experienced notable growth with a workforce expansion to 107 employees, marking an 11% increase. The company has also strengthened its team with key hires, including Alexis Zubiolo as a Senior Data Engineer and Philippe Damoune as a Senior Software Engineer. Additionally, Filigran's YouTube channel has seen a 7% increase in views, reaching a total of 79.0k views.

Industry: Artificial Intelligence

Location: London, United Kingdom

What they do: Building an autonomous AI agent aiming to resolve up to 80% of customer queries (incl. using actions and account data), enabling companies to scale CX with minimal human staff.

Last funding date: Aug. 24, 2024

Last funding amount: $3.7M

Team: Danai Antoniou, Dimitri Masin, Neal Lathia

Signal: Gradient Labs has grown to 16 employees. The company has also expanded its LinkedIn following to 2.1k, a 13% rise over the same period. Additionally, Gradient Labs has made a key hire, Devan Kuleindiren, as an engineer, and is actively hiring for one area.

Industry: Supply Chain Technology, Artificial Intelligence

Location: Vienna, Austria

What they do: Make supply chains more transparent, resilient and sustainable with the smartest AI.

Last funding date: Jun. 25, 2024

Last funding amount: $67.0M

Team: Lisa Smith, Harald Nitschinger

Signal: Prewave has expanded its team with key hires, including Jiyeon J. as a Product Analyst and Maximilian Z. as an Engineering Manager. The company also experienced a 2% increase in its workforce, reaching a total of 247 employees.

Get real-time signals and deep intelligence by requesting access to Signal.