Callosum Overview
- Year Founded
-
2024
- Status
-
Private
- Employees
-
29
- Latest Deal Type
-
Series 2
- Latest Deal Amount
-
$100M
- Investors
-
18
Callosum General Information
Description
Developer of AI-oriented compute-infrastructure technology intended to co-evolve specialized chips and intelligence systems. The company's platform focuses on scheduling and optimizing AI workloads across diverse hardware while pursuing advancements such as multi-cloud and multi-chip collaboration, photonic interconnect research, and hardware infrastructure development, enabling enterprise and data center markets to achieve higher computational efficiency, reduced costs, and improved model performance outcomes.
Contact Information
Website
www.callosum.comCorporate Office
- 54 Leman Street
- London E1 8EU
- England, United Kingdom
Corporate Office
- 54 Leman Street
- London E1 8EU
- England, United Kingdom
Callosum Timeline
Callosum Valuation & Funding
| Deal Type | Date | Amount | Raised to Date | Post-Val | Status | Stage |
|---|---|---|---|---|---|---|
| 2. Seed Round | 20-Aug-2026 | $100M | Completed | Generating Revenue | ||
| 1. Seed Round | 26-Feb-2026 | Completed | Startup |
Callosum Cap Table
| Stock | # of Shares Authorized |
Par Value | Dividend Rate (%) | Original Issue Price |
Liquidation | Liquidation Pref. Multiple |
Conversion Price | % Owned |
|---|---|---|---|---|---|---|---|---|
| Ordinary | ||||||||
| Seed Shares | ||||||||
| Seed Shares | 3,487,917 | $1.361773 | $1.85 | $1.85 | 1x | $1.85 | 25.52% |
VC Exit Predictor
See how our proprietary methodology utilizes historical data sets to synthesize the likelihood of an acquisition, IPO, or no exit event. Get a detailed look at the calculations behind our predictions.
Opportunity Score
Calculated using Exit Type probabilities, the company’s stage, and PitchBook’s historical returns data.
Exit Type
Evaluates the likelihood of a successful exit for investors, and the most likely exit type.
Callosum Related Research & Analysis
Explore institutional-grade private market research from our team of analysts.
-
Verticals
Callosum Signals
Growth Rate
Growth
Size Multiple
Key Data Points
Similarweb Unique Visitors
Majestic Referring Domains
Callosum Investors (18)
| Investor Name | Investor Type | Holding | Investor Since | Participating Rounds |
|---|---|---|---|---|
| Acclimate Ventures | Venture Capital | Minority | ||
| AlbionVC | Venture Capital | Minority | ||
| Atomico (UK) Partners | Venture Capital | Minority | ||
| DCVC | Venture Capital | Minority | ||
| Dunamu & Partners | Corporate Venture Capital | Minority |
Callosum FAQs
-
When was Callosum founded?
Callosum was founded in 2024.
-
Where is Callosum headquartered?
Callosum is headquartered in London, United Kingdom.
-
What is the size of Callosum?
Callosum has 29 total employees.
-
What industry is Callosum in?
Callosum’s primary industry is Business/Productivity Software.
-
Is Callosum a private or public company?
Callosum is a Private company.
-
What is Callosum’s current revenue?
The current revenue for Callosum is .
-
How much funding has Callosum raised over time?
Callosum has raised $110M.
-
Who are Callosum’s investors?
Acclimate Ventures, AlbionVC, Atomico (UK) Partners, DCVC, and Dunamu & Partners are 5 of 18 investors who have invested in Callosum.
Data Transparency
-
Meet our data hygiene team
Discover how our experts ensure you’re getting the most accurate financial data in the industry.
Read more -
How PitchBook sources data
Our data operations team has logged over 3.5 million hours researching, organizing, and integrating the information you need most.
Discover our process
