Aculys

Fujisawa, Japan Founded: 2021 • Age: 5 yrs Acquired By Viatris
Therapeutic medicines for neuropsychiatric and sleep disorders are developed.
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About Aculys

Aculys is a company based in Fujisawa (Japan) founded in 2021 by Takeshi Takahashi and Bt Slingsby was acquired by Viatris in October 2025.. Aculys has raised $84 million across 2 funding rounds from investors including Viatris, Sumitomo Mitsui Trust Holdings and SoftBank Vision Fund. Aculys operates in a competitive market with competitors including Apnimed, Avadel Pharmaceuticals, Mosanna Therapeutics, Circadian Therapeutics and sofi, among others.

  • Headquarter Fujisawa, Japan
  • Founders Takeshi Takahashi, Bt Slingsby
  • Sectors
    Healthcare
  • Phone
    *********
  • Website
    *********
  • Social
    *********
Operational Areas
Healthcare → Healthcare Products & Supplies
Key Metrics
  • Annual Revenue
  • Net Profit
  • EBITDA
  • Total Equity Funding
    $84 M (USD)

    in 2 rounds

  • Latest Funding Round
    $24 M (USD), Series B

    Mar 27, 2022

  • Investors
    Viatris

    & 9 more

  • Employee Count
    Employee Count
  • Acquired by
    Viatris

    (Oct 15, 2025)

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Funding Insights of Aculys

Aculys has successfully raised a total of $84M across 2 strategic funding rounds. The most recent funding activity was a Series B round of $24 million completed in March 2022. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.

  • Total Funding
  • Total Rounds 2
  • Last Round Series B — $24.0M
  • First Round

    (29 Oct 2021)

  • Investors Count 9
Date Amount Transaction Name Valuation Lead Investors Investors
Mar, 2022 Amount Series B - Aculys Valuation

investors

Oct, 2021 Amount Series A - Aculys Valuation SoftBank Vision Fund
Date Amount Transaction Name Valuation Lead Investors Investors
Jul, 2021 Amount Post-IPO - Grab Valuation

investors

Feb, 2021 Amount Post-IPO - Grab Valuation

investors

Jan, 2021 Amount Post-IPO - Grab Valuation

investors

Feb, 2021 Amount Post-IPO - Grab Valuation

investors

Investors in Aculys

Aculys has secured backing from 10 investors, including venture fund and institutional investors. Prominent investors backing the company include Viatris, Sumitomo Mitsui Trust Holdings and SoftBank Vision Fund. This diverse investor base provides strategic capital, industry expertise, and valuable network connections that support the company's growth initiatives, market expansion, and long-term value creation.

All
Venture Fund
Institutional
Investor Description Founded Year Domain Location
Venture capital fund focused on growth stage companies
Founded Year Domain Location
Venture capital is invested in AI, energy, and various sectors.
Founded Year Domain Location
Life sciences focused VC firm funding companies in the US and Europe
Founded Year Domain Location
Investor Description Founded Year Domain Location
Single family office of Amitabh Bachchan, founder of Amitabh Bachchan Corporation or AB CORP
Founded Year Domain Location
Startup ecosystems are ignited through strategic investments by Signite Partners.
Founded Year Domain Location
Venture capital is directed toward companies in multiple sectors.
Founded Year Domain Location
Venture capital is invested in cybersecurity, fintech, and AI startups.
Founded Year Domain Location

Investments & Acquisitions by Aculys

Investments
Company Name Description Domain Location Founded Year Amount
Bionic investment advisor platform
2016
Fine Asian gourmet food is offered by an internet-first restaurant.
2016
Physical e-commerce kiosks are deployed for rural purchases in Indonesia.
2014
Fine Asian gourmet food is offered by an internet-first restaurant.
2016

Financial Statements - Aculys

Tata Steel revenue growth over time
Tata Steel profit and loss trends over time
Date Amount Transaction Name Valuation Lead Investors Investors
Jul, 2021 Amount Post-IPO - Grab Valuation

investors

Feb, 2021 Amount Post-IPO - Grab Valuation

investors

Jan, 2021 Amount Post-IPO - Grab Valuation

investors

Feb, 2021 Amount Post-IPO - Grab Valuation

investors

Aculys Comparisons

Employees
+
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Competitors of Aculys

Aculys operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Apnimed, Avadel Pharmaceuticals, Mosanna Therapeutics, Circadian Therapeutics and sofi, among others. This competitive environment drives innovation, market differentiation, and strategic positioning as companies strive to capture market share and deliver value to their customers. Understanding the competitive dynamics is crucial for assessing market positioning, identifying growth opportunities, and navigating the challenges inherent in a competitive marketplace.

Company Name Domain Founded year HQ Location Description
domain founded_year HQ Location
Small molecule therapeutics for obstructive sleep apnea are developed.
domain founded_year HQ Location
Proprietary drug delivery technologies and narcolepsy treatments are developed.
domain founded_year HQ Location
Small molecule therapeutics for sleep apnea are developed.
domain founded_year HQ Location
Developer of therapeutics to treat circadian rhythm disruption
domain founded_year HQ Location
Provider of natural remedy based mental & physical wellbeing services
Company Name Domain Founded year HQ Location Description
domain founded_year HQ Location
Multiple services are booked via an app-based platform.
domain founded_year HQ Location
On-demand services are booked through an app-based platform.
domain founded_year HQ Location
App based platform offering on demand delivery and ride-hailing services
domain founded_year HQ Location
Operates an on-demand hyperlocal delivery app for food and groceries.

Frequently Asked Questions about Aculys

When was Aculys founded?

Aculys was founded in 2021.

Where is Aculys located?

Aculys is headquartered in Fujisawa, Japan. It is registered at Fujisawa, Kanagawa, Japan.

Is Aculys a funded company?

Aculys is a funded company, having raised a total of $84M across 2 funding rounds to date. The company's 1st funding round was a Series A of $60M, raised on Oct 29, 2021.

What does Aculys do?

Aculys was founded in 2021 and is based in Fujisawa, Japan. Therapeutic medicines are developed by the company to address neuropsychiatric disorders, with a focus on narcolepsy and other sleep conditions. Specialization occurs in central nervous system (CNS) treatments within the pharmaceutical sector. Operations center on drug development for patients affected by these disorders, maintaining a presence in the biotechnology and healthcare industries.

Who are the top competitors of Aculys?

Aculys's top competitors include Apnimed, Mosanna Therapeutics and Avadel Pharmaceuticals.

Who are Aculys's investors?
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