How to Choose a Custom Software Development Company: 12 Questions to Ask
Choosing a custom software development company is one of the most important decisions in a software project. The right partner turns a business need into reliable software on time; the wrong one leaves you with delays, budget overruns and code nobody wants to maintain.
Portfolios and hourly rates only tell part of the story. This guide gives you 12 questions to ask during your selection, explains what a good answer looks like, and lists the red flags to watch for.
Before you contact vendors
Prepare a short brief so every company answers the same question:
- The business problem and the expected outcomes.
- The main users and workflows.
- Existing systems the software must connect to.
- Constraints: deadline, budget range, hosting, security, compliance.
Not sure how to capture your needs? Our article on requirements gathering techniques explains how to do it.
Expertise and references
1. Have you built software similar to ours?
Look for experience with a comparable business domain, scale or type of application (web platform, mobile app, CRM, ERP integration). Ask to see case studies with concrete results.
2. Can we speak to one of your clients?
A confident vendor will put you in touch with a reference. Ask that client about communication, deadlines and how problems were handled.
3. Which technologies do you recommend, and why?
A good partner explains choices in terms of your needs (scalability, maintainability, available skills) rather than pushing the stack they always use.
Method and communication
4. How do you run a project?
Expect a clear process: discovery, design, iterative development, testing, deployment and support. Most custom projects benefit from an Agile approach with regular demos. See our custom software development process for an example.
5. Who will work on our project?
Ask for the team composition and seniority: project or product manager, developers, testers, designer. Check whether the people you meet during the sale will actually work on the project.
6. How will we follow progress?
Look for sprint reviews, shared backlogs, written reports and a single point of contact. Visibility should not depend on you chasing updates.
Quality and security
7. How do you guarantee code quality?
Good answers mention unit tests, code reviews, continuous integration, separate test environments and a clear definition of done. Read more about testing, QA and QC.
8. How do you handle security and personal data?
Ask about secure development practices, access management, dependency updates and how they help you meet GDPR requirements.
Budget, contract and ownership
9. How do you estimate and price the project?
Compare how estimates are built, not just the total. Ask which pricing model they propose (fixed price, time and materials, dedicated team) and what is excluded. Our guide to custom software development cost helps you read a quote.
10. Who owns the source code and intellectual property?
The contract should state clearly that you own the code and deliverables once paid, and that you receive access to the repositories and documentation.
11. How are changes handled during the project?
Needs evolve. Ask how new requests are estimated, prioritized and approved, and how this affects budget and planning.
After launch
12. What happens after go-live?
Software needs corrective, adaptive and evolutive maintenance. Ask about support levels, response times, hosting and how future evolutions are handled. A partner offering software maintenance services avoids a risky hand-over to another team.
Red flags to watch for
- A fixed price given before understanding your needs.
- No questions about your users, processes or existing systems.
- Vague answers about who will do the work.
- No testing process, or testing only “at the end”.
- Unclear ownership of the source code.
- No plan for maintenance after launch.
A simple scoring grid
| Criterion | What to check | Suggested weight |
|---|---|---|
| Relevant experience | Similar projects, references, case studies | 20% |
| Method and communication | Process, visibility, single contact | 20% |
| Team | Seniority, stability, dedicated people | 15% |
| Quality and security | Testing, code review, GDPR practices | 15% |
| Price and contract | Clear estimate, pricing model, IP ownership | 20% |
| Long-term support | Maintenance, SLAs, evolutions | 10% |
Adjust the weights to your context: a regulated business may weigh security higher, a startup may weigh speed and an MVP approach higher.
Frequently asked questions
Should I choose the cheapest software development company?
Rarely. A lower rate can be offset by rework, delays and maintenance costs. Compare the quality of the estimate, the process and the team, then the price.
Local, nearshore or offshore?
Each option has trade-offs in cost, time zone, language and legal framework. Many European companies choose a local partner for discovery and governance, sometimes combined with distributed delivery teams.
How many companies should I consult?
Three to five is usually enough to compare approaches without spending weeks on proposals.
Looking for a reliable partner? Euro Tech Conseil, a Paris-based custom software development company since 2000, offers custom software development services from discovery to maintenance. Ask us these 12 questions: contact our team.