Top 100 JavaScript Development Companies in London

The Best of February 2026

Looking for a top JavaScript developer in London?

If you're hiring a JavaScript developer to help you build or update a website that's responsive and interactive, consider the pros and cons of JavaScript as a programming language. Advantages include its speed because it's executed on the client-side; reduction in server load; and diverse functionality. Disadvantages to consider include security such as bugs on the client-side.

Jump to Most Reviewed Companies

List of the Best London JavaScript Developers

571

BAT CODERS

(0 Reviews)

Not yet reviewed.

$5,000+

2 - 9 employees

Chalfont Saint Peter, England

BAT CODERS is a Cybersecurity company. Launched in 2011, the team offers Cybersecurity and Mobile App Development. The agency is based in Chalfont Saint Peter, England.
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572

Digisol HUb

(1 Reviews) 5.0

Timeliness
4.5

Service Excellence
4.5

Value
4.5

Would Recommend
5.0

$1,000+

10 - 49 employees

London, England

Digisol HUb is an e-commerce development company established in 2018. Their small team is located in Lahore, Pakistan. The firm specializes in e-commerce development, web development, packaging design, mobile app development, and more.

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573

Quip Global

(0 Reviews)

Not yet reviewed.

Undisclosed

10 - 49 employees

London, England

Web development company Quip Global was launched in 2014. The agency focuses on Web Development and Mobile App Development, and is small.
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574

Equals Creative

(0 Reviews)

Not yet reviewed.

$10,000+

2 - 9 employees

Guildford, England

Equals Creative is an UX company. The Guildford, England-based agency offers UX/UI Design and Branding.
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