A US software development company can mean three different things. It can be a firm where every engineer is a US employee. It can be a US-headquartered firm with nearshore teams in Latin America. Or it can be a US-registered studio with a distributed senior team. All three show up in the same search. Prices and working hours differ a lot between them. This guide compares ten US-headquartered agencies, from a 30-person studio to a 10,000-person consultancy. Each one's headquarters, team model and pricing come from its own website. Where a firm doesn't publish a price, we say so.
Disclosure: NerdHeadz wrote this guide and appears at #3. The list is ordered by delivery model, not by quality score. We explain our placement in the entry, including why we sit below two firms with fully US-located teams.
How we built this list
Most "top software development companies in the USA" lists come from directories or from vendors ranking themselves first. We did three things differently:
- Headquarters verified on the firm's own site. We used its contact page, privacy policy or about page, not a directory profile. If we couldn't find a US headquarters or US legal entity on the company's own site, we dropped the firm. Several well-known names didn't make it for that reason alone.
- No invented prices. Most US agencies don't publish rates. If a figure isn't on the firm's own site, the entry says "no pricing published". We didn't use directory estimates.
- A "not the right fit if" line on every entry, ours included. Knowing when not to call a vendor is worth as much as knowing when to call one.
Review-based directories like Clutch are useful next steps. Clutch lists more than 55,000 software development companies and verifies client reviews. It's a good place to check references once you have a shortlist. If you haven't bought custom software before, start with our guide to choosing a custom software development agency.
Quick comparison
- 1 — Keyhole Software — Kansas City — 100% US-based W-2 consultants — 17+ yrs avg. experience — None
- 2 — 8th Light — Chicago — US + London — 140-plus team members — None
- 3 — NerdHeadz — Sheridan, Wyoming — Distributed, 16 countries — 30+ in-house specialists — $5,000–$30,000 (SelfWare)
- 4 — Atomic Object — Ann Arbor, Chicago, Grand Rapids, Raleigh — US offices only, employee-owned — 200+ organisations served — $50k to $1M+
- 5 — MojoTech — Providence, RI — US + Buenos Aires — 150+ projects shipped — None
- 6 — HatchWorks AI — Atlanta, GA — US + nearshore (Costa Rica, Colombia, Peru) — Est. 2016 — None
- 7 — Praxent — Austin, TX — US + Latin America — 150+ team members — None
- 8 — Softeq — Houston, TX — US + Europe + Mexico — 200+ engineers and staff — None
- 9 — FullStack — San Antonio, TX (legal entity) — US-based + nearshore — 1,100+ talent network — None
- 10 — Thoughtworks — Chicago — Global, 18 countries — 10,000+ people — None
The 10 software development companies
1. Keyhole Software: Best for enterprises that need every engineer in the US
HQ: Kansas City, with offices in St. Louis, Denver and Dallas. Founded: 2008.
Keyhole calls itself a "U.S.-Based Custom Software Development & Consulting Firm". It says all its consultants are full-time W-2 employees based in the US, with an average of 17+ years of experience. Services cover custom and mobile development, APIs, cloud-native builds, legacy and mainframe modernization, DevOps and enterprise AI (including RAG architecture).
Proof point: "Last year, 78% of our projects were with repeat clients." Named clients include AMC Theatres, Lowe's and Commerce Bank.
Pricing: no pricing published.
Not the right fit if: you're an early-stage startup testing an idea. Keyhole's senior, modernization-heavy team is built for large existing systems.
2. 8th Light: Best for teams that want engineering craft plus product strategy
HQ: Chicago, with satellite offices in New York, Los Angeles and Austin, plus London. Operating since: 2006.
8th Light has 140-plus team members. It combines product strategy, experience design and engineering, and now sells agentic AI builds ("Agents that ship. Governance that lets you sleep.").
Proof point: case studies with Pfizer, GeneDx, Cars.com, Grubhub and Fidelity Life Association.
Pricing: no pricing published.
Not the right fit if: you want a fixed-price, fixed-scope quote up front. Nothing on the site suggests that is how it sells.
3. NerdHeadz: Best for startups and SMBs that want a fixed price and weeks, not quarters
HQ: Sheridan, Wyoming (NerdHeadz LLC). Operating since: 2022.
We're US-headquartered with a distributed team: 30+ in-house engineers, designers and PMs, with talent across 16 countries. That's why we sit below Keyhole and 8th Light on this list. If you need every engineer on US soil, they're the better call. Our strength is speed at a published price. We build custom software, AI products and AI agents. With SelfWare, we build a bespoke tool and hand you the codebase, so you aren't locked into a maintenance contract.
Proof point: 60+ products shipped since 2022. The AI Call Center platform went live in 1.5 months, and 80% of our revenue since 2022 comes from returning clients.
Pricing: most SelfWare projects cost $5,000–$30,000 and take 2–6 weeks. Larger builds are quoted after scoping.
Not the right fit if: you need a 100+-person team, on-site staff, or engineers who all sit in the US.
4. Atomic Object: Best for complex products with a real budget
Offices: Ann Arbor, Chicago, Grand Rapids and Raleigh, all in the US. Operating since: 2001. Employee-owned.
Atomic Object is a software design and development consultancy. It builds new products, enhances existing ones, modernizes legacy systems and does AI development across web, mobile, IoT, desktop and cloud. It says it has worked with 200+ organisations, and its client logos include Ford, Cleveland Clinic, Qualcomm, Bosch and Johnson & Johnson.
Proof point: multi-year relationships with many of those 200+ organisations, by its own account.
Pricing: it's one of only two firms here that publish a figure. "Atomic's projects usually run 3-18+ months, with a budget of $50k to over $1 million."
Not the right fit if: your budget is under $50k or you need something live within a quarter.
5. MojoTech: Best for data modernization and AI product work in the Northeast
HQ: Providence, Rhode Island (legal address). Offices also in Boulder, New York and Buenos Aires. Founded: 2008, by software engineers.
Services include AI transformation, AI product development, data modernization, software engineering, UI/UX, mobile and cloud modernization. MojoTech says it has shipped 150+ projects, and its site states: "We're not here to talk you into the biggest invoice."
Proof point: named client testimonials from Angi, Schneider Electric, Blue Cross & Blue Shield of Rhode Island and MillerKnoll.
Pricing: no pricing published.
Not the right fit if: you need an all-US team. Part of MojoTech's delivery is in Buenos Aires.
6. HatchWorks AI: Best for nearshore teams on US hours
HQ: Atlanta, Georgia (mailing address). US hubs also in Chicago, Dallas and San Jose. Delivery hubs in Costa Rica, Colombia and Peru. Founded: 2016.
HatchWorks runs a nearshore model across the Americas with aligned time zones. Its services include AI strategy, AI-driven development, agentic automation, data modernization and model fine-tuning.
Proof point: says it was named #1 AI Services Company by Clutch, with a 4.9/5 rating from 29 reviews. Clients include Cox, Diebold Nixdorf and AdventHealth.
Pricing: no pricing published.
Not the right fit if: your contract requires work to be performed in the US.
7. Praxent: Best for banks, insurers and fintechs
Base: "Texas-founded", with its team split between Austin, Raleigh-Durham and Latin America. In business: 24 years.
Praxent is 100% focused on financial services: banking, insurance, wealth management, lending, fintech and payments. It covers UX and product design, engineering, AI consulting and managed teams. It reports 150+ team members and SOC 2 Type II certification.
Proof point: "400+ digital transformations delivered". Clients include Ameritas, Open Lending and Texas Mutual.
Pricing: no pricing published.
Not the right fit if: you're not in financial services. The focus is total. For fintech work outside that niche, see our fintech development practice.
8. Softeq: Best for hardware, embedded and IoT products
HQ: Houston, Texas, where it was founded in 1997. EU headquarters in Vilnius, with offices in Los Angeles, Munich, Guadalajara and Warsaw.
Softeq is unusual on this list because it designs hardware as well as software. Its work includes custom software, embedded systems and firmware, PCB and FPGA design, UX, QA, cybersecurity and DevOps. It has 200+ engineers, consultants and technology professionals.
Proof point: client logos include Intel, NVIDIA, AMD, Verizon and Lenovo. It reports an NPS of 75.
Pricing: no pricing published.
Not the right fit if: you're building a pure web or SaaS product with no device component. You'd be paying for capability you won't use.
9. FullStack: Best for scaling a team fast with US leadership
HQ: FullStack Labs, Inc., San Antonio, Texas (legal address in its privacy policy).
FullStack combines US-based and nearshore engineers from a 1,100+ talent network. It offers AI and agentic solutions, AI-enabled product engineering, custom software, data and analytics, product design and DevOps. It lists partnerships with Anthropic, OpenAI, AWS, Google Cloud and Databricks, and says it is SOC-compliant.
Proof point: "600 US companies trust us". It names Uber, Siemens and Ericsson among its clients and reports a client NPS of 68.
Pricing: no pricing published.
Not the right fit if: you want a small, fixed team for a one-off build rather than scalable capacity.
10. Thoughtworks: Best for enterprise-scale transformation
HQ: Chicago (Thoughtworks, Inc., per its privacy policy). Founded: in Chicago, 1993.
Thoughtworks is the largest firm on this list: 10,000+ people in 47 offices across 18 countries. It covers AI-first software and data engineering, system modernization and product design, and sells its own agentic delivery platforms.
Proof point: "95% rate their experience with Thoughtworks 8/10 or above."
Pricing: no pricing published.
Not the right fit if: you have a single product to build on a startup budget. It's built for enterprises changing how whole organisations deliver software.
How to choose a software development company in the USA
Decide what "US" has to mean for you. For some buyers it's a compliance requirement: data residency, government work, or an insurer's vendor policy. For others it just means working hours. Only Keyhole on this list states that every consultant is a US-based employee. Five others add nearshore or offshore delivery. If US-only staffing is a hard requirement, put it in the RFP. Don't infer it from a headquarters address.
Compare against the in-house alternative. The US Bureau of Labor Statistics puts the median annual wage for software developers at $135,980 (May 2025), before benefits, recruiting and management. An agency makes sense when you need a full team for a defined period, or skills you'd only use once. For a scoped internal tool, a fixed-price build is often cheaper than one hire. Our comparison of outsourcing partners covers the offshore end of the market.
Match the firm's size to your project. A $50k project gets a vendor's best people at a studio. At a 10,000-person consultancy it's a rounding error. The reverse holds too: a 30-person team shouldn't staff a 60-engineer program.
Ask who owns what at the end. Ask for the code, the infrastructure accounts and the documentation in writing. Then check what support looks like after launch before you sign.
Start small if you can. A paid prototype or discovery phase shows how a team communicates before you commit a full budget. If your project is AI-heavy, our list of software agencies for AI projects narrows the field further.
More questions
What are the biggest software companies in the USA?
The biggest software companies, like Microsoft, Oracle and Salesforce, sell products. They don't build custom software for clients, so they belong on a different list. Of the custom development firms here, the largest is Thoughtworks at 10,000+ people. The smallest is NerdHeadz at 30+.
Want a fixed-price quote for your build? Talk to our team, or look through 60+ shipped products in our portfolio first.
