Insights

Focused Rare Disease Portfolio X4 Pharmaceuticals specializes in treatments for rare hematology and immune system diseases, presenting an opportunity to offer specialized solutions and partnerships within niche therapeutic areas that are underserved and highly targeted.

Strategic Research Focus Shift The company has curtailed early-stage research efforts and closed its Vienna office to concentrate resources on commercializing its main product, suggesting a readiness for expanding sales efforts around Xolremdi and related treatments.

Recent Industry Engagement Attendance at leading biotech and hematology conferences indicates active networking and visibility in specialized markets, providing openings for collaborations, clinical trial partnerships, or distribution channels.

Growing Market Presence With ongoing presentations of Phase 2 trial data at major congresses, X4 is positioned as a credible innovator in its niche, making it a potential partner for pharma companies seeking to expand their portfolio into rare immune system disorders.

Financial and Operational Stability Despite a lean staff and recent layoffs, the company maintains a moderate revenue range and has secured substantial funding, signaling stability that supports sales initiatives associated with its marketed product and upcoming pipeline advancements.

Arsanis Tech Stack

Arsanis uses 8 technology products and services including SiteCatalyst, Drupal, Webpack, and more. Explore Arsanis's tech stack below.

  • SiteCatalyst
    Analytics
  • Drupal
    Content Management System
  • Webpack
    Development
  • Backbone.js
    Javascript Frameworks
  • Modernizr
    Javascript Libraries
  • UNIX
    Operating Systems
  • Yoast SEO
    Search Engines
  • Popup Maker
    Web Platform Extensions

Media & News

Arsanis's Email Address Formats

Arsanis uses at least 2 format(s):
Arsanis Email FormatsExamplePercentage
First.Last@arsanis.comJohn.Doe@arsanis.com
93%
FLast@arsanis.comJDoe@arsanis.com
7%
First.Last@x4pharma.comJohn.Doe@x4pharma.com
100%

Frequently Asked Questions

Where is Arsanis's headquarters located?

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Arsanis's main headquarters is located at Waltham, Massachusetts 02451 United States. The company has employees across 2 continents, including North AmericaEurope.

What is Arsanis's phone number?

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You can contact Arsanis'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 Arsanis's stock symbol?

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Arsanis is a publicly traded company; the company's stock symbol is XFOR.

What is Arsanis's official website and social media links?

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Arsanis's official website is x4pharma.com and has social profiles on LinkedInCrunchbase.

What is Arsanis's SIC code NAICS code?

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

How many employees does Arsanis have currently?

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As of February 2026, Arsanis has approximately 8 employees across 2 continents, including North AmericaEurope. Key team members include Director Of Finance & Operations: J. S.Clinical Trial Manager: L. M.Senior Executive Assistant/Office Manager: M. C.. Explore Arsanis's employee directory with LeadIQ.

What industry does Arsanis belong to?

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Arsanis operates in the Biotechnology Research industry.

What technology does Arsanis use?

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Arsanis's tech stack includes SiteCatalystDrupalWebpackBackbone.jsModernizrUNIXYoast SEOPopup Maker.

What is Arsanis's email format?

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Arsanis's email format typically follows the pattern of First.Last@arsanis.com. Find more Arsanis email formats with LeadIQ.

How much funding has Arsanis raised to date?

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As of February 2026, Arsanis has raised $20M in funding. The last funding round occurred on Dec 04, 2017 for $20M.

When was Arsanis founded?

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Arsanis was founded in 2010.

Arsanis

Biotechnology ResearchMassachusetts, United States2-10 Employees

Effective March 13, 2019, Arsanis completed a merger with X4 Pharmaceuticals, Inc. For continued news and updates, we encourage you to follow X4 at www.x4pharma.com to stay in touch and learn more.

Section iconCompany Overview

Headquarters
Waltham, Massachusetts 02451 United States
Phone number
SIC Code
8733 - Noncommercial Research Organizations
Stock Symbol
XFOR
NAICS Code
541714 - Research and Development in Biotechnology (except Nanobiotechnology)
Founded
2010
Employees
2-10

Section iconFunding & Financials

  • $20M

    Arsanis has raised a total of $20M of funding over 9 rounds. Their latest funding round was raised on Dec 04, 2017 in the amount of $20M.

  • $1M$10M

    Arsanis's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $20M

    Arsanis has raised a total of $20M of funding over 9 rounds. Their latest funding round was raised on Dec 04, 2017 in the amount of $20M.

  • $1M$10M

    Arsanis's revenue is estimated to be in the range of $1M$10M

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