Custom software development companies

Ailoitte

Bengaluru, India

AI and software engineering company with dedicated developers from $23 an hour.

Founded Est. 201750–249 staff

AOE

Wiesbaden, Germany

Digital platform builder with 300-plus staff, delivering ecommerce, custom software and n8n automation.

250–999 staffn8n Select Expert Partner

ByteSnap Design

Birmingham, United Kingdom

Electronics and embedded software design consultancy building connected and IoT products.

Founded Est. 2008

Capital Numbers

Kolkata, India

Digital engineering company with 600-plus professionals providing software teams, AI and Salesforce services.

250–999 staff

DiUS

Melbourne, Australia

Consultancy building custom software, AI, data and IoT products, with a Sydney office.

Founded Est. 2004

EB Pearls

Sydney, Australia

Software and app developer with an in-house engineering team in Kathmandu, offering AI-native builds and dedicated development squads.

Founded Est. 2004250–999 staff

Equal Experts

London, United Kingdom

Technology consultancy, placing experienced engineers to build digital products and platforms.

Founded Est. 20071,000+ staff

Future Processing

Gliwice, Poland

Software delivery and consulting partner with 800-plus specialists and a London office.

Founded Est. 2000250–999 staff

Webisoft

Montreal, Canada

Software firm building custom software, AI automation and blockchain systems.

Founded Est. 2016

Whitecap Canada

Toronto, Canada

Custom software and Microsoft Power Platform developer, started in 1997 and staffed by a fully Canadian team.

Founded Est. 1997

10Clouds

Warsaw, Poland

Software and AI company building AI agents and automation for banks, insurers and fintechs.

7Span

Ahmedabad, India

Product engineering company with 150-plus staff, ISO 9001 and ISO 42001 certified.

Founded Est. 201550–249 staff

8th Light

Chicago, United States

Software consultancy that builds custom software and ships AI into production.

Founded Est. 200650–249 staff

Adaca

Sydney, Australia

Software consultancy with 150-plus engineers, building custom software and AI, no minimum project size.

Founded Est. 201550–249 staff

Ahex Technologies

Hyderabad, India

Software, app and AI developer with 125-plus specialists.

Founded Est. 200950–249 staff

Apptension

Poznań, Poland

Senior-only software team, building AI products and SaaS platforms.

Founded Est. 2012

AppVerticals

Dallas, United States

Product engineering company building software, apps, AI and Odoo ERP solutions.

Founded Est. 2016250–999 staff

Architech

Toronto, Canada

Engineering firm that rebuilds costly business processes with AI on fixed-fee projects.

Founded Est. 2004

Aspirity

Palo Alto, United States

Business automation and custom development company, a Make Silver Partner.

Make Silver Partner

Atomic Object

Grand Rapids, United States

Custom software firm, building web, mobile and embedded apps, with offices in Ann Arbor, Chicago and Raleigh.

Founded Est. 200150–249 staff

AVAMAE

London, United Kingdom

Bespoke software developer using AI-assisted delivery with UK-based engineers, ISO 27001 certified.

Azilen Technologies

Irving, United States

Product engineering company, building AI agents and enterprise software.

Founded Est. 2009

Bit Zesty

London, United Kingdom

Ruby on Rails developer, also offering fractional CTO and AI consulting.

Founded Est. 2009

Bluefruit Software

Redruth, United Kingdom

Embedded software developer offering firmware development, software testing and consulting for quality-critical products.

50–249 staff