B2B Company Directory

Top Custom Software Development Companies

A high performing custom software solution is the backbone of your digital operations. From requirements discovery and system architecture to bespoke development and third party integrations, the right development partner turns ideas into scalable products. 10Firms streamlines your search by collecting in depth, verified reviews and performance data on thousands... Read More

220+ Companies Listed Custom Software Development Packages

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Web Development Mobile App Development E-Commerce Development Enterprise App Modernization Low/No Code Development API Development Blockchain Application Testing AR/VR Development IoT Development DevOps Managed Services Application Management & Support Robotics Process Automation Wearable App Development

Best Custom Software Development Agencies

220+ Companies

Tallium Inc.

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$10,000+ $25 - $49 / hr 11-50 Kyiv, Ukraine

Services Provided

10% Web Development

5% AI Development

35% Custom Software Development

+5 more services

15% Mobile App Development

20% UX/UI Design

5% IT Staff Augmentation

5% Blockchain

5% BI & Big Data Consulti...

About

Tallium Inc. builds custom mobile, web, and AI applications for startups & large enterprises. The team supports clients from early concept and design through development, launch, and ongoing maintenance. With 120+ specialists across design, engineering, QA, and product roles, they deliver scalable digital products across industries like fintech, healthcare, and education while also offering consulting... Tallium Inc. builds custom mobile, web, and AI applications for startups & large enterprises. The team supports clients from early concept and design through development,...

The Weather

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$10,000+ $50 - $99 / hr 1-10 Berlin, Germany

Services Provided

15% Web Development

10% Custom Software Development

10% E-Commerce Development

+4 more services

10% UX/UI Design

10% Low/No Code Developmen...

35% Web Design

10% Branding

About

The Weather is an award-winning digital agency based in Berlin that builds high-performance websites for clients present across the globe. The team has delivered 200+ web projects for tech startups, green energy companies, NGOs, and progressive organizations, keeping a close eye on clear design & practical results. They approach each project with a strong emphasis... The Weather is an award-winning digital agency based in Berlin that builds high-performance websites for clients present across the globe. The team has delivered 200+...

Coherent Solutions

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$50,000+ $50 - $99 / hr 1-10 Minneapolis, MN

Services Provided

15% Web Development

30% AI Development

25% Custom Software Development

+3 more services

10% Cloud Consulting & SI

10% AI Consulting

10% IT Managed Services

About

Coherent Solutions is a global software and digital engineering firm with over 2,000 engineers across 10 countries. The company builds digital products by combining modern technologies, skilled teams, and structured delivery processes. Their focus is on helping businesses meet strategic goals and stay competitive through reliable, scalable software solutions. Coherent Solutions is a global software and digital engineering firm with over 2,000 engineers across 10 countries. The company builds digital products by combining modern...

Cleveroad

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$10,000+ $25 - $49 / hr 200-500 New York, NY

Services Provided

28% Web Development

10% AI Development

30% Custom Software Development

+6 more services

10% Mobile App Development

5% Generative AI

5% IT Staff Augmentation

1% AI Consulting

1% API Development

5% IoT Development

About

Cleveroad builds complex and business-driven digital solutions with a focus on transparency & reliable delivery. The team develops web and mobile applications, cloud and microservices architectures, and advanced technologies such as AI, machine learning, data science, IoT, and augmented reality. They aim to deliver scalable and innovative products tailored to diverse industry needs. Cleveroad builds complex and business-driven digital solutions with a focus on transparency & reliable delivery. The team develops web and mobile applications, cloud and microservices...

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Custom Software Development FAQs

Looking for a Custom Software Development company but not sure where to start? We've put together answers to the most common questions businesses ask when searching for a trusted partner.

How do I choose the right custom software development company for my project?

Start by defining your project scope, budget, and timeline. Look at each firm's portfolio for relevant industry experience, check verified client reviews on 10Firms for reliability and communication, and confirm they have the tech stack your project requires.

How much does it cost to hire a custom software development company?

Costs vary widely based on project complexity, the firm's location, and team seniority. Complex engagements often range from $25,000 to $150,000 or more, depending on scale and specialization required. Use 10Firms filters to compare firms within your budget range.

What is the difference between a custom software development agency and a freelancer?

Agencies typically offer a full team of developers, QA engineers, project managers, and solution architects, with more structured processes, making them better suited for complex or long term projects. Freelancers can be more cost effective for smaller, well defined tasks but often have limited capacity.

How long does it take to build and launch a new application?

These engagements typically take 3 to 9 months, depending on complexity and organizational scale.

Do custom software development companies also handle ongoing support after the project is delivered?

Most firms listed on 10Firms offer post launch support packages covering bug fixes, performance monitoring, and feature enhancements. Check each firm's profile to confirm terms and pricing.

What should I look for in a custom software development company's portfolio?

Look for evidence of clean, scalable code and successful production deployments, and where available, measurable outcomes like faster load times or increased user adoption delivered for past clients.

Can these companies help with related services beyond custom software development?

Many firms on 10Firms offer end to end services covering UX/UI design, quality assurance, and DevOps support alongside core development. If you need a specialist for just one phase, check each firm's service listing to confirm.