How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- The best firm depends on project type: large system rebuilds suit Thoughtworks, EPAM, Globant, and Cognizant, while faster product builds often suit Netguru, BairesDev, ScienceSoft, and Toptal.
- Every firm in this list prices by project or engagement, not by a fixed monthly seat price, so a written scope, team mix, and timeline matter more than a headline rate.
- Ask for the actual team that will build the work, not only a sales presentation, including seniority, time zone overlap, and who owns code quality and delivery.
- Check recent work in your industry, references from similar-size clients, and how the firm handles handover, documentation, and support after launch.
- A short paid discovery or prototype phase reduces risk more than a long proposal, because it tests communication, code standards, and delivery pace before a full commitment.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Thoughtworks | Complex enterprise rebuilds | See website | No |
 EPAM Systems | Large product and platform engineering | See website | No |
 Globant | AI-led digital products at scale | See website | No |
 BairesDev | Nearshore staff augmentation | See website | No |
 ScienceSoft | Mid-size custom software and regulated work | See website | No |
 Netguru | Product design and app builds | See website | No |
 Toptal | Fast hiring of vetted freelancers | See website | No |
 Cognizant | Enterprise IT and AI services | See website | No |
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
The best software development firms
Starting priceSee website
Free planNo
Thoughtworks has built its name on engineering-led consulting, not on body-shop staffing. Clients usually hire it when a system is hard to change, when technical debt slows releases, or when a new platform must last for years. The firm works across cloud, data, and product engineering, and its consultants often pair with internal teams so knowledge stays inside the client organization after the engagement ends. That model suits companies that want better engineering habits, not only more hands.
The trade-off is cost and fit. Thoughtworks engagements tend to be structured, senior, and priced for enterprise budgets, so a startup that needs a simple app in six weeks may find a smaller product studio faster and cheaper. For a bank, retailer, or health organization rebuilding core systems, the discipline around architecture, automated testing, and incremental delivery can save money over time by avoiding rewrites. Ask early about team composition, because the value depends heavily on the senior engineers assigned.
What we like- Deep engineering practice for legacy modernization
- Strong focus on architecture, testing, and delivery discipline
- Senior consulting teams
Watch out for- Premium pricing for enterprise work
- Smaller projects may not fit its engagement model
#2
EPAM Systems
Best for: Large product and platform engineering
Visit epam.com
Starting priceSee website
Free planNo
EPAM is one of the largest product engineering firms in this list, with teams across many countries and deep work in finance, retail, life sciences, energy, and media. That scale helps when a project needs many specialists at once, such as mobile developers, data engineers, cloud architects, and quality engineers working on one platform. EPAM also publishes extensive work on AI platforms and enterprise transformation, which signals where much of its current engineering effort sits.
Scale brings process. A client should expect formal governance, structured delivery plans, and regular reporting, which large organizations often want. A small company may find that process slower than a boutique studio. The practical step is to interview the delivery lead, review a recent project of similar size, and agree on release cadence, code review standards, and how changes to scope are handled. When those points are clear, EPAM can carry a long, multi-team build that smaller firms cannot staff.
What we like- Very large global engineering pool
- Broad industry coverage
- Strong platform and AI engineering work
Watch out for- Large-firm process can feel heavy for small teams
- Account and team quality can vary by location
Starting priceSee website
Free planNo
Globant combines software engineering with design studios, which makes it a fit for customer-facing products where experience matters as much as code. Its teams build apps, platforms, and commerce experiences, and its current work leans heavily on AI-assisted delivery and AI products. Clients in sports, entertainment, retail, and finance use Globant when a product must look polished, perform well, and scale across markets.
A client should bring clear product ownership to the engagement. Globant can design and build, but decisions about audience, pricing, and launch priorities still need a client owner who can approve work quickly. Without that owner, design cycles can stretch. Pricing is project-based, so request a breakdown by phase, including discovery, design, build, testing, and support. For a consumer product with high design standards, Globant offers a depth that pure engineering firms often lack.
What we like- Large creative and engineering studios for digital products
- Strong work in media, sports, retail, and finance
- Global delivery teams
Watch out for- Enterprise focus and pricing
- Product vision work may need strong client-side product ownership
Starting priceSee website
Free planNo
BairesDev focuses on nearshore talent for US companies, with engineers in Latin America working in overlapping time zones. That overlap matters for daily standups, code reviews, and fast feedback, and it avoids the overnight handoff delays that come with far-apart time zones. Clients can hire a single engineer, a small pod, or a larger team, and scale up or down as the roadmap changes. The firm covers a wide set of technologies, from web and mobile to data and cloud work.
Staff augmentation is not the same as a fully managed project. The client usually keeps product direction, architecture decisions, and delivery management, while BairesDev supplies engineers and support. That model works best when the client already has product managers and technical leads. Companies without that internal leadership should ask about managed team options and how BairesDev handles onboarding, performance reviews, and replacement if an engineer leaves mid-project.
What we like- Time-zone aligned teams for US clients
- Large vetted talent pool across many technologies
- Flexible team scaling
Watch out for- Staff augmentation still needs strong client management
- Quality depends on the specific engineers assigned
#5ScienceSoft
Best for: Mid-size custom software and regulated work4.7/5 on
G2 (4 reviews, checked Oct 2026)
Visit scnsoft.com
Starting priceSee website
Free planNo
ScienceSoft has worked in custom software since 1989, and its site highlights healthcare, finance, and other regulated sectors. That background helps when a project needs compliance thinking from the start, such as data protection, audit trails, and secure handling of sensitive records. The firm offers consulting, custom development, modernization, testing, and support, so a client can stay with one vendor from discovery through maintenance.
The firm suits mid-size and large projects where planning, documentation, and quality checks matter. A client with a small, fast-moving prototype may prefer a leaner studio. ScienceSoft publishes sample cost and process details on its site, which helps buyers compare engagement models before a call. Ask for a project plan that names risks, testing coverage, and handover steps, because those items decide whether a regulated system passes review and stays maintainable after launch.
What we like- Long history in custom software, healthcare, and finance
- In-house project management office
- Broad QA and security services
Watch out for- Broad service range can make scoping slower
- Enterprise-grade process may feel formal for very small builds
#6Netguru
Best for: Product design and app builds4.3/5 on
G2 (2 reviews, checked Oct 2026)
Visit netguru.com
Starting priceSee website
Free planNo
Netguru builds digital products with design and engineering in one team, and its recent work covers commerce, marketplaces, fintech, and consumer apps. Clients often hire Netguru when they have an idea and need help turning it into a tested, launched product, including user research, interface design, development, and release. The firm also offers managed services and cloud operations, which helps after launch when monitoring and iteration matter.
Product studios work best with a clear launch goal and a client who can give feedback each week. Netguru teams move fast when decisions are quick, and they slow down when approval stalls. Before signing, agree on the first release scope, what counts as done, and how many design revisions are included. For a startup or a corporate innovation team that needs a polished app without building an internal team first, Netguru is a strong shortlist pick.
What we like- Strong product design and mobile work
- Clear focus on commerce, fintech, and consumer apps
- Experienced delivery teams
Watch out for- Less suited to very large enterprise system rebuilds
- Project pricing varies widely by scope
#7Toptal
Best for: Fast hiring of vetted freelancers4.7/5 on
G2 (270 reviews, checked Oct 2026)
Visit toptal.com
Starting priceSee website
Free planNo
Toptal is not a traditional development firm. It runs a screened network of freelance developers, designers, product managers, and other specialists, and it matches clients with talent, often within days. That speed helps when a team needs a specialist for a few months, such as a mobile lead, a data engineer, or a designer for a launch. Clients can start with a trial period and keep only the talent that fits, which lowers hiring risk compared with a long contract.
The model puts delivery responsibility on the client. Toptal supplies people, but the client still sets priorities, reviews code, and manages the roadmap, unless it hires a full team with its own lead. Rates depend on the person and the engagement, so budget from the actual quote, not from a general rate card. For companies that already have engineering leadership and need to add capacity fast, Toptal is often the quickest path. For companies that want a vendor to own the whole product, a full-service firm is a better fit.
What we like- Fast matching with screened developers and designers
- Flexible hourly to full-time engagements
- Trial period for fit
Watch out for- Freelancer model needs client-side management
- Rates vary by skill and seniority
- No single firm owns full delivery
Starting priceSee website
Free planNo
Cognizant serves large enterprises that need software, cloud, data, and AI work at scale, often alongside existing IT operations. Its teams handle application development, modernization, managed services, and industry-specific platforms, and its current positioning centers on AI-led delivery for large clients. A company that already buys IT services at scale may find Cognizant easier to approve through procurement, because it fits standard enterprise contracting and security reviews.
The risk for smaller buyers is attention and pace. Large vendors prioritize large accounts, and a modest project can move slowly through account teams. Buyers should confirm the delivery team, the escalation path, and the service levels in writing, and they should start with a bounded phase rather than a multi-year commitment. For a large organization that needs a vendor able to staff many workstreams and support systems long term, Cognizant belongs on the shortlist.
What we like- Very large enterprise delivery capacity
- Broad IT, cloud, and AI services
- Strong presence in US industries
Watch out for- Large-firm engagements can be slow to start
- Smaller projects may get less senior attention
How we chose
We reviewed vendor homepages, service pages, and public documentation, and we checked public reviews on G2, Capterra, and Clutch-style listings where available, plus company case material. We favored firms with a current, verifiable homepage, a clear service focus, and recent work relevant to US buyers. We compared engagement models, team structure, industry focus, and support after launch, rather than ranking firms only by size. No firm paid for placement, and we did not claim hands-on testing of any engagement.
How to hire the right firm without overpaying
Start with a one-page brief before talking to sales teams. State the problem, the users, the must-have features for the first release, the systems the new software must connect to, and the budget range. A firm that asks sharp questions about that brief is usually more useful than a firm that promises a fixed price on the first call. Ask each firm to show a similar project, with the team size, timeline, and what changed during the build.
Compare team, not only price
A low hourly rate with junior engineers and weak review can cost more than a higher rate with senior engineers who ship clean code. Ask who will write code, who reviews it, who manages delivery, and how often you will see working software. Request a weekly demo, written progress notes, and access to the code repository and issue tracker from the start. Those controls matter more than a polished proposal.
Protect the handover
Agree on code ownership, documentation, test coverage, and support terms before work starts. The contract should state that the client owns the code and data, that documentation covers architecture and deployment, and that a handover period includes knowledge transfer to internal staff or a new vendor. Also agree on how bugs found after launch are handled, and for how long. A firm that resists clear handover terms is a warning sign, even if its initial price looks low.
Start small, then scale
A discovery phase or a small first release tests the real working relationship. Set a fixed scope for that phase, with clear success measures such as a working prototype, a tested integration, or a defined set of user stories completed. If communication, quality, and pace meet the bar, expand to the full build. If they do not, the cost of changing vendors stays low, and the client keeps the discovery output to use with the next firm.
Frequently asked questions
What is the best software development firm?
The best firm depends on the project. Thoughtworks and EPAM suit large, complex builds, Globant and Netguru suit design-led products, BairesDev and Toptal suit adding talent fast, and ScienceSoft and Cognizant suit regulated or enterprise work. Shortlist two or three firms by project type, then compare teams and references.
How much does a software development firm cost?
Most firms price by project, team, or time and materials, so there is no single starting price in this guide. Cost depends on team size, seniority, location, timeline, and scope. Ask for a phase-by-phase quote and for what is excluded, such as licenses, cloud costs, and post-launch support.
Should I hire a firm or freelancers?
Hire a firm when you need a full team, product ownership, QA, and long-term support under one contract. Hire vetted freelancers through Toptal or a similar network when you already have product and engineering leadership and need extra capacity or a specialist. Many companies use both, with a firm for the core product and freelancers for short-term gaps.
How long does custom software take to build?
A small app can take eight to sixteen weeks for a first release, while a complex platform can take six to eighteen months or more. Timeline depends on scope, integrations, design work, and how fast the client approves decisions. A firm should give a phased timeline with working demos, not only a single launch date.
Who owns the code after the project?
In most custom engagements, the client should own the code, documentation, and data, and that ownership should be written into the contract. Confirm this before work starts, including rights to third-party libraries, licenses, and any reusable components the firm wants to keep. Keep repository access in client-owned accounts.
What should I check in references?
Ask references about delivery pace, code quality, communication, staff turnover, and how the firm handled problems or scope changes. Ask whether the firm met its timeline, whether the product needed major rework after launch, and whether the reference would hire the firm again. References from similar-size companies in a similar industry carry the most weight.
Sources we checked (8)
- https://www.thoughtworks.com/
- https://www.epam.com/
- https://www.globant.com/
- https://www.bairesdev.com/
- https://www.scnsoft.com/
- https://www.netguru.com/
- https://www.toptal.com/
- https://www.cognizant.com/us/en
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.