Circadian Risk Inc.

Venture-backed company · Series A· Ann Arbor, MI
Rounds on record
2
Latest round
Feb 24, 2026
Series A
Latest round size
$6.0M
Form D industry: Other Technology
More
As of · the latest observation of this company; each round carries its own date

What matters now

  1. $6M
    announced

    Announced a Series A ($6M round) on 24 Feb 2026.

    A company that just raised has fresh capital, a new board and new vendors to choose.

    FactPress release wires (PR Newswire, GlobeNewswire)For Investors, lenders, service providersFinancing history →
  2. 3 investors
    named

    3 investors on record; Arthur Ventures led a round.

    The investors already on the cap table shape who leads the next round.

    Factfunding announcements, portfolio pages and Form DFor Investors, foundersInvestors →
  3. 3 directors
    board

    3 directors on record from Form D filings and board-seat attributions.

    The board is who decides on the next round and on a sale.

    FactSEC Form D related personsFor Investors, acquirersPeople →
Drawing the relationship network…

Facts

Year of incorporation
unknown
Revenue range (Form D)
Decline to Disclosesec.gov
Rounds on record
2
Disclosed raised
$6.0Msum of rounds with a disclosed amount only
Named investors
3

Financing history

2 rounds
  1. Feb 24, 2026
    Series A · $6.0M (disclosed)
    Arthur Ventures (lead) via Jake OlsonTamiami Angel Funds (participant) via Timothy Cartwright
    Fact Press release · “Circadian Risk Raises $6 Million in Oversubscribed Series A Round”
  2. Sep 5, 2025
    Form D equity offering · $5.0M (form d sold) · 31 investors
    Arthur Ventures Management, LLC via Patrick Michael Meenan
    Fact Form D · “Circadian Risk Inc. filed Form D: $5,000,726 sold of $6,000,724, Other Technology”

Investors on record

3 edges

Ownership and outcomes

none on record
Outcome stated by investors

No firm portfolio page lists this company, so no outcome is stated.

No later owner or exit on record: no private equity sponsor position and no acquisition, listing or IPO report names this company.

Credit relationships

none on record
No lender position matched to this company.

People

2 officers, 3 directors

Timeline

2 events
  1. Feb 24, 2026
    Circadian Risk announced Series A of $6,000,000, led by Arthur Ventures
    Round announced Fact Press release
  2. Sep 22, 2025
    Circadian Risk Inc. filed Form D: $5,000,726 sold of $6,000,724, Other Technology
    Form D filed Fact Form D

Evidence

15 observations
Every observation on this company
  • Entity type: Corporation Sep 22, 2025 Fact Form D
  • Form D industry group: Other Technology Sep 22, 2025 Fact Form D
  • Amendment: false Sep 22, 2025 Fact Form D
  • Revenue range (Form D): Decline to Disclose Sep 22, 2025 Fact Form D
  • Incorporated: overFiveYears Sep 22, 2025 Fact Form D
  • Jurisdiction: Delaware Sep 22, 2025 Fact Form D
  • Amount sold (Form D): $5.0M Sep 22, 2025 Fact Form D
  • Offering amount (Form D): $6.0M Sep 22, 2025 Fact Form D
  • Exemptions: 06b Sep 22, 2025 Fact Form D
  • First sale: 2025-09-05 Sep 22, 2025 Fact Form D
  • Investors (Form D): 31 Sep 22, 2025 Fact Form D
  • Minimum investment (Form D): 27,151 Sep 22, 2025 Fact Form D
  • Securities offered: equity Sep 22, 2025 Fact Form D
  • Office address: Sep 22, 2025 Fact Form D
  • Round announced: Series A $6,000,000 Feb 24, 2026 Fact Press release

Relationships across DFX

on 1 other DFX graph
Across the graphs

Circadian Risk Inc. is the same institution as 1 record in Private Equity.

Private Equity1

The joined record opens with the product, beside every other relationship on this page.

Checking your plan…

Record history

2 dated events on the change ledger, latest event first
  • Round announced
    2026-02-24source on record
  • Form D filed
    2025-09-22source on record

The ledger records every merge, rename and reclassification this record went through and the dated filings observed on it, so the identity on this page can be traced to the records it was built from. The ledger's own sentences name other records, so they show with the names.