Callstack

Business Services · Poland · 51-200 Employees

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Overview

Headquarters

Prosta 36, Wroclaw, Lower Silesian Voivo...

Phone Number

+48 693411272

Revenue

$39 Million

Industry

Business Services Software Testing
ZI Rank: 1
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May
ZI Rank
2
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About Callstack

When I started using React Native, I quickly saw the mobile revolution coming. With my love to Open Source, I dedicated myself to spread the word about React Native and apply its strengths to accelerate mobile development. At Callstack, the company understands that new technologies carry lots of opportunities and risks at the same time. The company is here to guarantee you a bug-free, continuous development in an ever-changing Javascript world. The company is active Open Source citizens and the company want the Open Source community to benefit from the company's work just like the company benefit from theirs. As a group of innovators that works with bleeding-edge technologies, the company often encounter problems that haven't been solved yet. The company is your own full-time employees, but with a short-term commitment. From a start-up to an industry leader, the company has worked with organisations of all sizes and structures to help deliver React and React Native features on time. ChRead more
Callstack's Social MediaPopular SearchesCallStackCallstack LtdReact Native EU ConferenceSIC Code 73,737NAICS Code 54,541Show more

Callstack Org Chart

PhoneEmail
BG
Poland flag for contact location.

Software Developer

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SV
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System Engineer

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KF
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Senior Software Developer

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ES
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Quality Assurance Automation Engineer

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Company Profile Activity

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Among all Business Services companies

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Activity Insights

Callstack is experiencing very low activity levels compared to other companies in the Business Services sector.

What does this means?

Callstack is drawing exceptional interest within the Business Services industry, suggesting notable developments or strong market momentum, learn more about Callstack.

Callstack Tech Stack

Most Recent Scoops

Hiring Plans
Callstack has more open roles in Sales than it has had at any time in the past 12 months. Areas of expertise include: Sales Pipeline Management, Pipeline Reporting, Sales Forecasting, and Consultative Selling.
Hiring Plans
Hiring Plans
Callstack has more open roles in Sales than it has had at any time in the past 12 months.
Hiring Plans
Event
Person-Based
Michal Pierzchala, Head of Technology, appeared on a podcast called "React Native Radio" on 07/25/2025. Topics discussed include React Native Enterprise Framework.
Events, Podcast
Event
Person-Based
Events, Podcast
See more scoops

Callstack News & Media

  • Re.Pack - Bringing Webpack to React Native

    Callstack recently launched Re.Pack - an Open Source library created with more experienced developers in mind. It's a Webpack-based toolkit which enables building React Native applications with full support of the Webpack ecosystem. (PRWeb August 16, 2021) Read the full story at https://www.prweb.com/releases/re_pack_bringing_webpack_to_react_native/prweb18106927.htm
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Top Business Services Companies

Frequently Asked Questions Regarding Callstack

What is Callstack's official website?
Callstack's official website is www.callstack.com
What is Callstack's Revenue?
Callstack's revenue is $39 Million
What is Callstack's SIC code?
Callstack's SIC: 73,737
What is Callstack's NAICS code?
Callstack's NAICS: 54,541
How many employees does Callstack have?
Callstack has 51-200 employees
What industry does Callstack belong to?
Callstack is in the industry of: Business Services, Software Testing
What technology does Callstack use?
Some of the popular technologies that Callstack uses are: ClickCease, Cloudflare Website Optimization, DoubleClick, Google Universal Analytics
How do I contact Callstack?
Callstack contact info: Phone number: +48 693411272 Website: www.callstack.com
What does Callstack do?

When I started using React Native, I quickly saw the mobile revolution coming. With my love to Open Source, I dedicated myself to spread the word about React Native and apply its strengths to accelerate mobile development. At Callstack, the company understands that new technologies carry lots of opportunities and risks at the same time. The company... is here to guarantee you a bug-free, continuous development in an ever-changing Javascript world. The company is active Open Source citizens and the company want the Open Source community to benefit from the company's work just like the company benefit from theirs. As a group of innovators that works with bleeding-edge technologies, the company often encounter problems that haven't been solved yet. The company is your own full-time employees, but with a short-term commitment. From a start-up to an industry leader, the company has worked with organisations of all sizes and structures to help deliver React and React Native features on time. Check what they are saying. Not only does Callstack have tremendously talented engineers, but I know they care about the success of the project as much as I do. Having a true partner is a wonderful experience and gives the company the ability to move so much faster than the company could without them. In a few words: its been amazing. The company think they are great developers and the company learned a lot from them. They communicate efficiently with the stakeholders and provide helpful feedback and suggestions. Even though they are external contributors, the company consider them as colleagues and part of the team. Callstack became a natural development partner for the company given their deep knowledge of the platform. Despite the geographical distance, the company's collaboration has been successful with strong deliveries on time, together with a good communication. The company worked together to deliver a game-changing educational (...). I would have no hesitation in recommending Callstack to others, to provide a flexible ...Read More

What are Callstack social media links?
Callstack Linkedin page Callstack Twitter page Callstack Facebook page
Is Callstack a public company?
Callstack is private company therefore does not currently have an official ticker symbol
See more information about Callstack

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