
Castle
2024 Revenue
$9.3M
Customers
500M
Funding
$0
YOY
64.4%
Avg ACV
$0
Team
37
Founded
2016
How Castle CEO Johan Brissmyr grew Castle to $9.3M revenue and 500M customers in 2024.
Castle analyzes user behavior to stop hackers
Last updated
Castle Revenue
In 2024, Castle's revenue reached $9.3M. The company previously reported $5.6M in 2023. Since its launch in 2016, Castle has shown consistent revenue growth.
| Year | Milestone | Quote |
|---|---|---|
| 2024 | Castle Hit $9.3m revenue in October 2024 | |
| 2023 | Castle Hit $5.6m revenue in December 2023 | |
| 2021 | Castle Hit $4.9m revenue in January 2021 | |
| 2016 | Launched with $0 revenue |
Castle Valuation, Funding Rounds
Castle is a bootstrapped Cryptocurrency Wallets startup. Founded in 2016, Castle has grown to $9.3M in revenue without raising any venture capital or outside funding.
As a self-funded Cryptocurrency Wallets SaaS company, Castle has built its business with no outside investment.
| Year | Round | Amount | Valuation | % Sold | Quote |
|---|
Castle Employees & Team Size
Castle employs approximately 37 people as of 2026, up from 26 in 2023. It serves 500M customers that rely on its solutions.
| Year | Milestone |
|---|---|
| 2024 | Reached 37 employees (December 2024) |
| 2024 | Reached 34 employees (October 2024) |
| 2023 | Reached 26 employees (December 2023) |
| 2022 | Reached 23 employees (December 2022) |
| 2021 | Reached 27 employees (December 2021) |
| 2021 | Reached 50 employees (January 2021) |
Founder / CEO
Johan Brissmyr
Johan Brissmyr is the CEO & Co-founder at Castle. Prior to joining Castle, Jim was the Chief Product Officer at New Relic, a global observability leader. At New Relic, Jim helped grow the company from $0 to $500 million in revenue and led a global development team of more than 500 people.
Q&A
| Question | Answer |
|---|---|
| What's your age? | - |
| Favorite online tool? | - |
| Favorite book? | - |
| Favorite CEO? | - |
| Advice for 20 year old self | - |
Customers
See how Castle acquires and retains customers with data on acquisition costs and revenue performance. Log in to access the complete customer economics dashboard.
Frequently Asked Questions about Castle
What is Castle's revenue?
Castle generates $9.3M in revenue.
Who founded Castle?
Castle was founded by Johan Brissmyr.
Who is the CEO of Castle?
The CEO of Castle is Johan Brissmyr.
How much funding does Castle have?
Castle raised $0.
How many employees does Castle have?
Castle has 37 employees.
Where is Castle headquarters?
Castle is headquartered in Brooklyn, New York, United States.
People Also Viewed

Rand Labs
A blockchain development lab specialized in Algorand technology. Our Products: AlgoExplorer My Algo Incubation Labs: Professional development services [email protected]

Fadada.com
Operator of an electronic contracts service platform. The company provides an online platform for electronic document signing and certificate services such as electronic contracts signature, documents signature, evidence custody and other electronic related signature.

POC Pharma
POC Pharma is a SaaS Company supporting pharma stakeholders to digitally manage their interactions, and grow faster and cheaper.

OnSeen
Developer if mobile workforce management software intended to manage people, places and assets. The company's platform schedules, dispatches, monitors and task remote staff and contractors, provide real-time status updates to everyone involved in the process and collaborate with mobile resources in real-time, enabling clients to optimize their processes and reduce their project costs.

Fulfil.IO
Fulfil.io helps high growth, high volume merchants simplify operations and scale for growth

Grain Intelligence Inc.
Developer of a platform designed for organizational team meetings and collaboration. The company's platform optimizes video conversation workflows - from scheduling to follow-up - and makes it easy to recall, replay, and collaborate around every team or customer interaction, enabling employees to have a seamless experience for every team conversation.
Compare Castle to the industry
Castle operates across multiple industries. Browse revenue, funding, and growth data for Castle in each sector below.
Source Attribution
Source: all data was collected from GetLatka company research and founder interviews. Revenue, funding, team, and customer figures are presented as company-reported or GetLatka-estimated metrics where the profile data identifies them that way.
Company data last updated .
Data Disclaimer
All figures on this page are taken directly from interviews or are estimates from public sources and proprietary models. Not financial advice. Read full disclaimer.
Claim this profile