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Top IT Service Providers for Custom Software Development

953 IT service providers ranked by rating, review volume and listing quality.

Between them, the 600 best-ranked of these 953 IT service providers cover web development (542), web design (455), software development (399) and mobile app development (290). They also list work in Ahmedabad, Delhi NCR, California and Bengaluru, India. 563 of them have written a profile you can read before you get in touch.

TrustList ranks more than 950 IT service providers offering custom software development, ordered on client reviews and profile quality, never on payment. At the top right now: Savas Labs, Celebrate Drupal and Azoft.

The largest markets we rank for custom software development: USA (306).

What to check before you shortlist

A discovery or specification phase before a fixed estimate
Who is on the team, and whether they stay for the whole project
That you own the intellectual property and the source code
Testing, documentation and maintenance after release

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The order is earned: ratings, verified reviews and listing quality decide it, and nobody can pay to move up. There are two ways to stand out, and each one says what it is.

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How is this ranking worked out?

Each firm's position comes from its client reviews and its profile, blended into one score:

Rating, smoothed so a single five-star review cannot outrank a firm with hundreds of good ones
Review volume, with diminishing returns
Profile completeness: the details a buyer needs to judge the firm
Earned trust: verification and awards, as a small lift

No firm can pay for a position. Sponsored listings are labelled and shown apart from this list. How rankings work