Home API Development Belgium Brussels

Top API Developers in Brussels

Ratings Updated: April 18, 2025

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8 Companies

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2 Leaders 6 Contenders

8 Companies

Country: Belgium

City: Brussels

List of the Top Brussels API Development Services

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StepInsight

4.9 7 reviews

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$25,000+

$50 - $99 / hr

10 - 49

Etterbeek, Belgium

Services provided

15% API Development

40% Custom Software Development

30% Mobile App Development +1 service

15% AI Development

StepInsight is a versatile software development company specializing in web and mobile app development, UI/UX design, and backend system solutions. The company is lauded for its high-quality deliverables, timely project management, and effective communication, with no significant negative feedback reported across reviews. Approximately 100% of reviews highlight their strong communication and client-focused approach, establishing them as a reliable partner for diverse project needs.

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Reviews mention Passionate about their work

Clients consistently highlight StepInsight's passion for their work, noting their enthusiasm and commitment to project success. One client remarked on the developers' willingness to go above and beyond to meet milestones, while another appreciated their eagerness to be involved in all aspects of the project. Overall, the sentiment reflects a strong positive perception of StepInsight's dedication and proactive approach, fostering trust and collaboration with clients.

Custom LMS Development for Learning & Performance Platform

5.0 Jun 14, 2024

Clear communication on what was being developed and expectations on timeframes. All developers were skilled and passionate about the outcomes and went over and beyond to ensure milestones were met. Any minor concerns raised throughout the project were dealt with promptly.

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Web App Dev & UI/UX Design for Boat Booking Company

5.0 Jan 23, 2023

StepInsight has demonstrated high enthusiasm about the project, and they want to be involved in every part of it to help us build something special from scratch. They’re very passionate about what they do. Trust them; they know what they’re doing and want the best outcome for their clients.

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Australia (6)

Belgium (1)

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Stellar Development

4.8 2 reviews

$10,000+

$25 - $49 / hr

10 - 49

Bruxelles, Belgium

Services provided

10% API Development

35% Custom Software Development

20% IoT Development +2 services

20% Web Development

15% UX/UI Design

Stellar Development is a design-focused company specializing in UI/UX, web design, and graphic design services. They receive overwhelmingly positive feedback, with 100% of reviewers highlighting their timely delivery, effective communication, and high-quality work. Clients particularly appreciate their swift iterations and creative solutions, demonstrating both creativity and technical expertise.

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Reviews mention Creative

Clients expressed high satisfaction with Stellar Development's creative capabilities, noting their impressive combination of creativity and technical knowledge. One CEO highlighted how the team transformed a vague initial concept into a well-defined website through distinct proposals. The iterative design process was praised, with timely delivery and effective communication throughout. Overall, the sentiment reflects a strong appreciation for Stellar's innovative approach and responsiveness, with no reported areas for improvement.

Web Design & Development for Financial Company

4.5 Mar 1, 2024

We were impressed by a combination of creativity and technical knowledge in one team. Our original idea of the website was quite vague, but with the distinct proposals that we were provided with, we were able to make up our minds and navigate ourselves to the desired output.

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AE

Not yet reviewed

Undisclosed

Undisclosed

250 - 999

Leuven, Belgium

Services provided

20% API Development

20% AI Consulting

20% Business Consulting +2 services

20% Mobile App Development

20% UX/UI Design

Established in 1999, AE is an UX design company. The agency provides UX/UI Design and Mobile App Development.
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AB Digital

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Evere, Belgium

Services provided

20% API Development

20% Cloud Consulting & SI

20% Cybersecurity +2 services

20% IT Staff Augmentation

20% Mobile App Development

Cloud consulting & SI company AB Digital was founded in 2018. The small team focuses on cloud consulting & SI and Cybersecurity.
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Cyrex Enterprise

5.0 1 review

$10,000+

$50 - $99 / hr

10 - 49

Gent, Belgium

Services provided

10% API Development

30% Blockchain

10% Application Testing +5 services

10% Custom Software Development

10% DevOps Managed Services

10% Enterprise App Modernization

10% IT Strategy Consulting

10% UX/UI Design

Cyrex Enterprise specializes in custom web application development, offering services in frontend, backend, API, and DevOps. Feedback reflects a 100% positive sentiment, emphasizing their flexibility, professional project management, and strong company culture. Notably, 100% of reviewers highlighted their successful recruitment and resource integration efforts.

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Cyrex Ltd.

Not yet reviewed

$5,000+

$100 - $149 / hr

50 - 249

Gent, Belgium

Services provided

10% API Development

15% Application Testing

15% Custom Software Development +6 services

10% Blockchain

10% Cybersecurity

10% Mobile App Development

10% UX/UI Design

10% Web Design

10% Web Development

Cyrex Ltd., a custom software development company, was launched in 2015. The midsize team provides Custom Software Development and Application Testing.
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Wizzou

Not yet reviewed

$1,000+

$100 - $149 / hr

2 - 9

Antwerpen, Belgium

Services provided

10% API Development

20% E-Commerce Development

10% Custom Software Development +6 services

10% Mobile App Development

10% Pay Per Click

10% Search Engine Optimization

10% UX/UI Design

10% Web Design

10% Web Development

Wizzou is an e-commerce development firm. Their team is based in Antwerpen, Belgium and specializes in E-Commerce Development and Search Engine Optimization.
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Sumarosoft

Not yet reviewed

$5,000+

$25 - $49 / hr

50 - 249

Gent, Belgium

Services provided

10% API Development

10% AI Development

10% Custom Software Development +7 services

10% DevOps Managed Services

10% IT Managed Services

10% IoT Development

10% Mobile App Development

10% Robotics Process Automation

10% Web Design

10% Web Development

Sumarosoft is a Gent, Belgium-based web design company. Established in 2012, the team specializes in Web Design and IT managed services.
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Ability to deliver

Focus

Proven

Market Leaders

Emerging

Niche

Clutch Leaders Matrix

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1 StepInsight

2 Stellar Development

A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size. Learn More

Focus (x-axis)

Focus accounts for a company’s specialization within a certain service.

Ability to Deliver (y-axis)

Ability to Deliver considers three criteria:

Client feedback and reviews
Work experience and previous projects
Market presence and reputation in the industry

List of the Top 2 Brussels API Development Services

StepInsight

$25,000+

$50 - $99 / hr

10 - 49

Etterbeek, Belgium

Ability to deliver

33.8/40.0

18/20 Reviews

10/10 Clients & Experience

5.8/10 Market Presence

Service focus

15% API Development

85% Other

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Stellar Development

$10,000+

$25 - $49 / hr

10 - 49

Bruxelles, Belgium

Ability to deliver

26.2/40.0

16/20 Reviews

5.7/10 Clients & Experience

4.6/10 Market Presence

Service focus

10% API Development

90% Other

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AE

Undisclosed

Undisclosed

250 - 999

Leuven, Belgium

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

20% API Development

80% Other

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AB Digital

Undisclosed

Undisclosed

10 - 49

Evere, Belgium

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

20% API Development

80% Other

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Cyrex Enterprise

$10,000+

$50 - $99 / hr

10 - 49

Gent, Belgium

Ability to deliver

26.4/40.0

16.2/20 Reviews

5.1/10 Clients & Experience

5.2/10 Market Presence

Service focus

10% API Development

90% Other

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Cyrex Ltd.

$5,000+

$100 - $149 / hr

50 - 249

Gent, Belgium

Ability to deliver

14.6/40.0

0/20 Reviews

9.5/10 Clients & Experience

5.2/10 Market Presence

Service focus

10% API Development

90% Other

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Wizzou

$1,000+

$100 - $149 / hr

2 - 9

Antwerpen, Belgium

Ability to deliver

5.5/40.0

0/20 Reviews

0/10 Clients & Experience

5.5/10 Market Presence

Service focus

10% API Development

90% Other

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Sumarosoft

$5,000+

$25 - $49 / hr

50 - 249

Gent, Belgium

Ability to deliver

4.4/40.0

0/20 Reviews

0/10 Clients & Experience

4.4/10 Market Presence

Service focus

10% API Development

90% Other

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Top API Developers in Brussels

List of the Top Brussels API Development Services

Reviews mention Passionate about their work

Custom LMS Development for Learning & Performance Platform

Web App Dev & UI/UX Design for Boat Booking Company

Reviews mention Creative

Web Design & Development for Financial Company

Get closer to kicking off your next project today

List of the Top 2 Brussels API Development Services