Insights

Strategic Immuno-Oncology FLX Bio is an immuno-oncology focused entity developing orally-administered small molecules to engage the immune system against cancer, presenting opportunities for collaboration on combination therapies with checkpoint inhibitors and precision biomarker-driven patient selection.

Lead Program Focus Lead candidate FLX475 is a best-in-class CCR4 inhibitor in early human trials, indicating potential for partnered development or licensing as a core asset for IO combos, along with ongoing exploration of GCN2 and USP7 inhibitors.

Clinical and translational leverage The company emphasizes precision medicine with biomarker-driven patient selection and translational biology capabilities, enabling co-development opportunities with pharma partners seeking validated biomarkers to de-risk trials.

Funding and growth readiness With backing from prominent investors and a recent IPO trajectory, FLX Bio demonstrates capital readiness for collaboration deals, co-development, or licensing agreements to accelerate late-stage progression.

Small team, focused niche A lean organization with 51-200 employees operating in a specialized IO space suggests agile partnerships, potential outsourcing of manufacturing, clinical, and regulatory functions, and rapid decision cycles favorable for strategic alliances.

FLX Bio, Inc. Tech Stack

FLX Bio, Inc. uses 8 technology products and services including WordPress, Twemoji, TweenMax, and more. Explore FLX Bio, Inc.'s tech stack below.

  • WordPress
    Content Management System
  • Twemoji
    Font Scripts
  • TweenMax
    Javascript Frameworks
  • React
    Javascript Frameworks
  • Zepto
    Javascript Libraries
  • Modernizr
    Javascript Libraries
  • SWFObject
    Miscellaneous
  • Google Analytics
    Web Analytics

Media & News

FLX Bio, Inc.'s Email Address Formats

FLX Bio, Inc. uses at least 1 format(s):
FLX Bio, Inc. Email FormatsExamplePercentage
FLast@flxbio.comJDoe@flxbio.com
99%
First.Last@flxbio.comJohn.Doe@flxbio.com
1%

Frequently Asked Questions

Where is FLX Bio, Inc.'s headquarters located?

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FLX Bio, Inc.'s main headquarters is located at 561 Eccles Avenue South San Francisco, California 94080 United States. The company has employees across 1 continents, including North America.

What is FLX Bio, Inc.'s phone number?

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You can contact FLX Bio, Inc.'s main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is FLX Bio, Inc.'s official website and social media links?

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FLX Bio, Inc.'s official website is flxbio.com and has social profiles on LinkedIn.

What is FLX Bio, Inc.'s SIC code NAICS code?

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FLX Bio, Inc.'s SIC code is 8733 - Noncommercial Research Organizations NAICS code is 541714 - Research and Development in Biotechnology (except Nanobiotechnology).

How many employees does FLX Bio, Inc. have currently?

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As of December 2025, FLX Bio, Inc. has approximately 51 employees across 1 continents, including North America. Key team members include Senior Director Toxicology: A. K.Associate Director, Clinical Operations: D. J.Director Chemistry: J. S.. Explore FLX Bio, Inc.'s employee directory with LeadIQ.

What industry does FLX Bio, Inc. belong to?

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FLX Bio, Inc. operates in the Biotechnology Research industry.

What technology does FLX Bio, Inc. use?

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FLX Bio, Inc.'s tech stack includes WordPressTwemojiTweenMaxReactZeptoModernizrSWFObjectGoogle Analytics.

What is FLX Bio, Inc.'s email format?

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FLX Bio, Inc.'s email format typically follows the pattern of FLast@flxbio.com. Find more FLX Bio, Inc. email formats with LeadIQ.

How much funding has FLX Bio, Inc. raised to date?

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As of December 2025, FLX Bio, Inc. has raised $37M in funding. The last funding round occurred on Jun 19, 2019 for $37M.

When was FLX Bio, Inc. founded?

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FLX Bio, Inc. was founded in 2015.
FLX Bio, Inc. logo

FLX Bio, Inc.

Biotechnology ResearchCalifornia, United States51-200 Employees

FLX Bio, Inc. is a biotechnology company focused on immuno-oncology, developing orally available small molecule drugs intended to activate the immune system against cancer. Its integrated drug discovery platform targets proteins and pathways in the tumor microenvironment, concentrating on regulatory T cells and myeloid cells that influence tumor immunity. The lead candidate, FLX475, is a CCR4 inhibitor that entered Phase 1 in December 2017, with potential use as a monotherapy or in combination with checkpoint inhibitors; the company is also developing inhibitors targeting GCN2 and USP7.

Based in South San Francisco, California, FLX Bio operates within the biotechnology research sector and pursues a precision medicine approach by identifying biomarkers to guide prospective patient selection and maximize clinical response. Through its translational biology and computational capabilities, the company aims to advance strategies that modulate the tumor immune microenvironment in cancer therapy.

Section iconCompany Overview

Headquarters
561 Eccles Avenue South San Francisco, California 94080 United States
Phone number
Website
flxbio.com
SIC Code
8733 - Noncommercial Research Organizations
NAICS Code
541714 - Research and Development in Biotechnology (except Nanobiotechnology)
Founded
2015
Employees
51-200

Section iconFunding & Financials

  • $37M

    FLX Bio, Inc. has raised a total of $37M of funding over 4 rounds. Their latest funding round was raised on Jun 19, 2019 in the amount of $37M.

  • $1M

    FLX Bio, Inc.'s revenue is estimated to be in the range of $1M

Section iconFunding & Financials

  • $37M

    FLX Bio, Inc. has raised a total of $37M of funding over 4 rounds. Their latest funding round was raised on Jun 19, 2019 in the amount of $37M.

  • $1M

    FLX Bio, Inc.'s revenue is estimated to be in the range of $1M

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