4xxi
visit site- $10,000+
- 50 - 249 employees
- London, England
4xxi is a web and mobile development company headquartered in London, UK with satellite offices in Saint Petersburg and Saransk, Russia. 4xxi's team of 50+ employees provides web development, mobile app development, and custom software development services to startups, mid-market businesses, and enterprises alike. They also have a diverse industry presence, working with healthcare, financial services, and education firms.
Client Insights
Industry Expertise
25%
20%
20%
10%
10%
10%
5%
Client Size Distribution
Small Business (<$10M) 40%
Midmarket ($10M - $1B) 40%
Enterprise (>$1B) 20%
Common Project Size
$50K-$199K 4 projects
$200K-$999K 3 projects
$10K-$49K 2 projects
Clients
- FIFA
Highlights from Recent Projects
4xxi was contracted by an auditing firm to develop a platform for auditors and audit companies. The client, who had limited development resources, needed a team to build the infrastructure for their startup based on their initial ideas. 4xxi provided a team of five to six specialists, including a product manager, to handle design and programming tasks. They also provided all the necessary documentation and code. The client was particularly impressed by the team's 24/7 availability and their active involvement in tracking changes and interacting with the client's CTO. The project, which cost the client $100,000, was completed in four months.
Virool, a video advertising and branding firm, hired 4xxi to assist with custom software development. The firm's internal engineering team was overwhelmed by the scope of their project, so they sought the help of 4xxi to build their platform on time and within budget. 4xxi worked on the user interface elements of Virool's customer analytics dashboard, eventually taking over the entire dashboard, which included billing, campaign management, and analytics reports. The team from 4xxi, consisting of a project manager, a QA specialist, and three engineers, adopted an agile methodology to keep the team aligned and autonomous.
Challenge Social, a company that operates an app for creating and engaging in various challenges, hired 4xxi to redevelop their mobile application on both iOS and Android platforms, as well as code their website. After a previous company failed to deliver a satisfactory platform, Challenge Social turned to 4xxi to create a scalable, high-quality platform. The team from 4xxi, which included backend developers, iOS and Android developers, a QA specialist, a business analyst, and a project manager, completely redesigned and recoded the project from scratch. The client praised 4xxi for their reliability, excellent communication, and commitment to delivering a high-quality product.