# BranchLab

> BranchLab builds Pathwai, an AI platform for pharmaceutical commercialization that learns from de-identified health data and uses non-health signals for audience activation. It serves pharmaceutical manufacturers, agencies, publishers and platforms, with a Dentsu integration and $35 million in reported funding.

- **Founded:** 2024
- **Headquarters:** New York, United States
- **Founders:** Josh Walsh (Co-founder & CEO), Michael Parkes (Co-founder, President & CRO), Chris Cagle (Co-founder)
- **Products:** Pathwai™, HealthGraph™, Privacy Updates for Marketing Activation
- **Notable:** Announced USD 35 million total funding in May 2026., Dentsu integration announced February 11, 2026., Company-reported metabolic-disease research found over 10% improvement in ROC AUC when incorporating clinically meaningful heterogeneity; not a treatment outcome.

## Products & services

- **Pathwai™** — AI platform connecting healthcare audience design, activation, measurement and optimization; learns from de-identified clinical journeys and deploys using non-health signals. The company now calls it a Semantic Activation Platform.
- **HealthGraph™** — Early company materials describe an anonymized healthcare-journey database covering over 300 million US residents and 2.1 million healthcare providers; these are data-coverage figures, not customer counts.
- **Privacy Updates for Marketing Activation** — Informational state-by-state healthcare marketing privacy resource launched with eight states; not legal advice.

## Achievements

- Announced USD 35 million total funding in May 2026.
- Dentsu integration announced February 11, 2026.
- Company-reported metabolic-disease research found over 10% improvement in ROC AUC when incorporating clinically meaningful heterogeneity; not a treatment outcome.
- Joined the inaugural CIMM Startup Program.
- Christopher Manning joined the Scientific Advisory Board in September 2026.

## Latest updates

- **2026-09** — Christopher Manning joined the Scientific Advisory Board; he is also a partner at investor AIX Ventures.
- **2026-08** — Launched Privacy Updates for Marketing Activation, initially covering eight states.
- **2026-08** — Described Pathwai as a Semantic Activation Platform linking planning, activation and measurement.
- **2026-05** — Announced USD 26 million Series A led by McKesson Ventures, bringing total funding to USD 35 million.

## Links

- Website: https://branchlab.com/
- LinkedIn: https://www.linkedin.com/company/branch-lab

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Profile page: https://yespress.io/branchlab
Published by YesPress — https://yespress.io
Last updated: 2026-10-03