Insights

Innovative Therapeutics CelSiege Biosciences specializes in pioneering multi-specific active immunotherapies targeting resistant cancers such as squamous NSCLC, indicating an opportunity to collaborate or supply cutting-edge biotech solutions to support their research and development efforts.

Funding and Growth With recent funding of $25 million and a focus on innovative biologics, there is potential to offer specialized services, equipment, or partnerships that can accelerate their development pipeline.

Global Operations Headquartered in France with U.S. operations, CelSiege’s international footprint suggests a need for global supply chain solutions, translation services, or regional collaborations to support their expansion.

Emerging Market Player As a small but promising biotech company with revenue under $1 million and a focused mission, they may be receptive to investments or strategic alliances that help scale their therapies for broader clinical and commercial success.

Technology Adoption Utilizing advanced tech stacks including PyTorch and HTTP/3 indicates an openness to innovative digital solutions, offering opportunities for technology vendors to provide specialized software, cloud services, or cybersecurity solutions tailored for biotech research.

CelSiege Biosciences Tech Stack

CelSiege Biosciences uses 8 technology products and services including Cloudflare CDN, Shopify, Bunny Fonts, and more. Explore CelSiege Biosciences's tech stack below.

  • Cloudflare CDN
    Content Delivery Network
  • Shopify
    E-commerce
  • Bunny Fonts
    Font Scripts
  • jQuery Migrate
    Javascript Libraries
  • PyTorch
    Machine Learning
  • HTTP/3
    Web & Portal Technology
  • WP-Optimize
    Web Platform Extensions
  • Twitter
    Widgets

Media & News

CelSiege Biosciences's Email Address Formats

CelSiege Biosciences uses at least 2 format(s):
CelSiege Biosciences Email FormatsExamplePercentage
FLast@bakxtx.comJDoe@bakxtx.com
100%

Frequently Asked Questions

Where is CelSiege Biosciences's headquarters located?

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CelSiege Biosciences's main headquarters is located at Boston, New York United States. The company has employees across 2 continents, including North AmericaAsia.

What is CelSiege Biosciences's official website and social media links?

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CelSiege Biosciences's official website is celsiege.com and has social profiles on LinkedInCrunchbase.

What is CelSiege Biosciences's SIC code NAICS code?

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CelSiege Biosciences's SIC code is 8733 - Noncommercial Research Organizations NAICS code is 541714 - Research and Development in Biotechnology (except Nanobiotechnology).

How many employees does CelSiege Biosciences have currently?

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As of February 2026, CelSiege Biosciences has approximately 4 employees across 2 continents, including North AmericaAsia. Key team members include Director Of Finance And Operations: J. M.Senior Lab & Research Operations Manager: M. B.. Explore CelSiege Biosciences's employee directory with LeadIQ.

What industry does CelSiege Biosciences belong to?

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CelSiege Biosciences operates in the Biotechnology Research industry.

What technology does CelSiege Biosciences use?

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CelSiege Biosciences's tech stack includes Cloudflare CDNShopifyBunny FontsjQuery MigratePyTorchHTTP/3WP-OptimizeTwitter.

What is CelSiege Biosciences's email format?

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CelSiege Biosciences's email format typically follows the pattern of FLast@bakxtx.com. Find more CelSiege Biosciences email formats with LeadIQ.

How much funding has CelSiege Biosciences raised to date?

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As of February 2026, CelSiege Biosciences has raised $25M in funding. The last funding round occurred on Nov 18, 2021 for $25M.

When was CelSiege Biosciences founded?

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CelSiege Biosciences was founded in 2025.

CelSiege Biosciences

Biotechnology ResearchNew York, United States2-10 Employees

CelSiege Biosciences is pioneering multi-specific active immunotherapies to bring lasting control to squamous non-small cell lung cancer (sqNSCLC) and other difficult-to-treat cancers.

Built on a proprietary active immunotherapy platform, CelSiege develops first-in-class biologics that target circulating growth factors to overcome resistance to standard therapies. Our lead program, CS-01, selectively depletes epidermal growth factor (EGF) to open new possibilities in squamous NSCLC — a patient population with few treatment advances in decades.

Headquartered in Marseille, France, with operations in the United States, CelSiege unites a global team of scientists, clinicians, and partners dedicated to advancing a new generation of globally accessible therapeutics for patients in urgent need.

Section iconCompany Overview

Headquarters
Boston, New York United States
SIC Code
8733 - Noncommercial Research Organizations
NAICS Code
541714 - Research and Development in Biotechnology (except Nanobiotechnology)
Founded
2025
Employees
2-10

Section iconMedia & News

Section iconFunding & Financials

  • $25M

    CelSiege Biosciences has raised a total of $25M of funding over 1 rounds. Their latest funding round was raised on Nov 18, 2021 in the amount of $25M.

  • $1M

    CelSiege Biosciences's revenue is estimated to be in the range of $1M

Section iconFunding & Financials

  • $25M

    CelSiege Biosciences has raised a total of $25M of funding over 1 rounds. Their latest funding round was raised on Nov 18, 2021 in the amount of $25M.

  • $1M

    CelSiege Biosciences's revenue is estimated to be in the range of $1M

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