Discover top software development outsourcing agencies in the USA that offer scalable, cost-effective solutions tailored to your business needs. These agencies specialize in delivering custom software, cloud applications, and product engineering with expertise in diverse industries and technologies.
Best United States Outsourcing Developers
10 Companies-Rankings updated: September 03, 2026
DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.
VerifiedVerified by the DesignRush team for authenticity and credibility.
Your trusted AI software development partner
When startups and enterprise clients need AI-driven software or staffing, Diffco delivers custom mobile, web, and IoT applications backed by 17 years of delivery experience. San Jose-headquartered, the team has built solutions for American Express, Starbucks, Whole Foods, and Mars, using React, Node.js...
Top Services:
AI Development
Software Development
Staff Augmentation
Mobile App Development
Web Development
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Location
San Jose, California
Number of Employees
50 - 99
Average Hourly Rate
$110/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
31 Projects Listed
Diffco Services
AI Development
Software Development
Staff Augmentation
Mobile App Development
Web Development
eCommerce Development
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Mars
Food Rocket
FlashGrid
Nokia
Instreamatic
Quire
Legionfarm
Latoken
Genius One
Shift
Data sourced from the agency's DesignRush profile
Diffco Reviews & Testimonials
Oleg Sotnikov CEO at AppMaster
5.0★
AI Development Review from Oleg Sotnikov
Diffco built a complex, production-grade AI agentic system and backend for our client's fintech platform owning architecture, AI/ML components, and AI agents in a security- and compliance-sensitive environment. They delivered on time and within budget, communicated proactively, and operated like part of our own team, taking ownership and suggesting better solutions throughout. Deep AI/ML and senior backend expertise. We'd happily work with them again.
Julia Platova VP Strategic Partnerships at OVA Solutions
5.0★
Mobile App Development Review from Julia Platova
We partnered with Diffco for a comprehensive software development project aimed at delivering a mobile application and backend system for our client. The goal was to create a seamless, secure, and scalable solution within a 4-month timeline and $50k-$200k budget.Diffcos team was highly professional from start to finish. They handled everything: UI/UX design, backend architecture, API integration, and deployment.After the launch, they continued to support us with maintenance and performance optimization.The application received positive feedback and has proven stable and scalable.Were highly satisfied with Diffcos expertise, commitment, and ability to deliver real results.
Max Shmatkov Manager at Centerligh
5.0★
Mobile App Development Review from Max Shmatkov
As an advantage of working with this company I’d like to note that their Agile development method is amazing! Diffco earned my trust through such approach and the team’s professional attitude.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Clients report improved operational efficiency and on-time delivery across complex healthcare and fintech builds. Glorium Technologies operates from Houston with 16 years of software outsourcing experience, delivering AI automation, custom ERP systems including certified Odoo implementation, and full-cycle...
Top Services:
Software Development
AI Development
ERP Consulting
Digital Strategy
Web Development
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Location
Houston, Texas
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
56 Projects Listed
Glorium Technologies Services
Software Development
AI Development
ERP Consulting
Digital Strategy
Web Development
Mobile App Development
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
RealPage
Agfa HealthCare
VitalWare
Astarte Medical
FUEL
Doxy.me
BIOMODEX
Medlab
Speechagain
Project Ipsilon
Data sourced from the agency's DesignRush profile
Glorium Technologies Reviews & Testimonials
Djamel Bettahar CEO at Freedom Years
5.0★
UI/UX Design Review from Djamel Bettahar
We hired Glorium to design the UX/UI for an investment platform we are building.The team conducted research and really dove into what the needs of the users were. They assessed the landscape of the app and focused on key leverage points.I am very happy with the final deliverable. The team was quick to implement feedback and always stayed on top of things. The design came out really beautiful.They really care about us as the client.
Leo Sharp CTO at SunScience
5.0★
Mobile App Development Review from Leo Sharp
Glorium Technologies successfully delivered the project within the set deadlines, and their communication throughout was exemplary. They provided advanced, automated systems that met our needs and surpassed our expectations.Glorium Technologies's technology significantly improved our operational efficiency and resource management. We highly recommend Glorium Technologies to other organizations seeking innovative and reliable solutions in controlled environment agriculture, sustainable living, and energy efficiency.
Sebastian Foster CEO at Howtomixmusic
5.0★
Software Development Review from Sebastian Foster
In our search for an exceptional website, we turned to Glorium Technologies. With their proficiency in .NET, they developed a digital masterpiece that attracted significant visitors within months. The design's simplicity and organization earned praise from our clients. Glorium Technologies maintained consistent communication throughout the project, utilizing Zoom and email to steer the project toward success.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Building AI-Powered Software That Delivers Results
Plavno is an AI-first software development company that helps businesses accelerate innovation through intelligent automation, AI assistants, and scalable digital platforms. With more than two decades of experience and hundreds of successful projects delivered, the company specializes in building advanced...
Top Services:
Mobile App Development
Web Development
eCommerce Development
Blockchain
Software Development
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Location
Alexandria, Virginia
Number of Employees
100 - 249
Average Hourly Rate
$25/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
25 Projects Listed
Plavno Services
Mobile App Development
Web Development
eCommerce Development
Blockchain
Software Development
IT Services
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Mercedes
Xerox
Kia
Amazon
eBay
PayPal
IBM
MediaCube
Data sourced from the agency's DesignRush profile
Plavno Reviews & Testimonials
Alexander Nikolaevsky CEO at Whitebird
5.0★
Web Development Review from Alexander Nikolaevsky
We have hired the Plavno team to develop a cryptocurrency exchange solution.allow users to make cryptocurrency transactions legally and transparently. Plavno team had to create a solution independent of third-party developers, develop frontend solutions for clients and service administrators, build a full-featured back-end that would include integration with banking and payment systems, and a multifunction module for managing currency exchange transactions, exchange rates.
Mitya Smusin CEO at Yellow Systems
5.0★
Financial Review from Mitya Smusin
Some problems can only be solved with code, but others require end-user thinking. So Plavno developers remember that the whole goal is to solve problems — not only to write code. They thought about the problem from the restaurantants point of view.They developed a food delivery app with both customer and admim panels, which covers all the necessary functionality.
Yana Romanovskaya Product Manager at Beeline
5.0★
IT Outsourcing Review from Yana Romanovskaya
Plavno was creating profiles with pulling up a lot of information (clusters). Xunit-based scoring was used when setting up a .NET 2.0 project. Scoring for this format works similarly to Junit. The team extended the products by adding features, fixing bugs. This development can change cluster parameters, cluster management system (current state of the object), customize vectors that lead to this cluster and make predictions.
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Simform is a premier digital engineering company specializing in Product Engineering, Cloud, Data, Agentic AI, and Enterprise Platform Innovation. We help enterprises and high-growth ISVs build digital experiences and scalable, enterprise-grade products what work at scale...
Top Services:
Software Development
Cloud Consulting
AI Development
Big Data Analytics
DevOps Consulting
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Location
Orlando, Florida
Number of Employees
1000 & Up
Average Hourly Rate
$30/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
8 Projects Listed
Simform Services
Software Development
Cloud Consulting
AI Development
Big Data Analytics
DevOps Consulting
IoT
eCommerce Development
UI/UX Design
IT Services
Managed Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Sony Music (EMI)
Pepsico
Zep Inc
Intralinks
Nxt-ID
FreeWire Inc
Accent Inc
Mission Rabies
DoggyBnB
Drizzle Labs
Data sourced from the agency's DesignRush profile
Simform Reviews & Testimonials
Andrew Muroff CEO at Strainprint Technologies Ltd.
5.0★
Software Development Review from Andrew Muroff
We worked with Simform for many years ongoing software development on our core product, the Strainprint mobile outcomes tracker for medical cannabis patients. We have only positive things to say about their work product and attention to detail. We highly recommend them and will work with them again.
Robel Yemane Head of Engineering at Privilee
5.0★
Software Development Review from Robel Yemane
I've been working with Simform for over six months now. The engagement began with bringing our subscription management platform in-house, and we've since expanded the partnership to other projects due to their broad skill set and consistent reliability. They've gone the extra mileeven over weekends and public holidaysto help us move faster when needed. Communication and project management have been excellent, with any issues swiftly addressed. It genuinely felt like Simform was invested in our success. Having worked with similar firms throughout my career, I can confidently say Simform stands out and comes highly recommended.
Russ Makhauri Front-End Engineer at Midas
5.0★
Software Development Review from Russ Makhauri
We worked with Simform to hire a front-end engineer for our SaaS platform. The process was well-organized, and their team was professional, responsive, and efficient. They quickly identified a candidate who met our technical requirements and ensured a smooth onboarding process.Simforms communication and project management were strong throughout the engagement. They were proactive in addressing feedback and remained flexible in adapting to our needs. While there is some room for improvement in developer vetting and quality assurance, their overall service was excellent.For companies looking to scale their development teams efficiently, Simform is a reliable partner. Their structured approach, responsiveness, and commitment to client satisfaction make them a great choice. We would recommend them without hesitation.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Your Digital Innovation Partner. Accelerating innovation through AI, software development, and digital transformation.At Rootstack, we help organizations build scalable digital products, modernize operations, and unlock new business opportunities through technology...
Top Services:
Web Development
Software Development
Mobile App Development
Managed Services
Software Testing
Show more
Location
Austin, Texas
Number of Employees
100 - 249
Average Hourly Rate
$60/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
42 Projects Listed
Rootstack Services
Web Development
Software Development
Mobile App Development
Managed Services
Software Testing
IT Services
DevOps Consulting
eCommerce Development
Big Data Analytics
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
JumpGrowth is a premier AI-led product engineering studio headquartered in Dallas, Texas. JumpGrowth specializes in building scalable, AI-powered software applications and products tailored for tech startups and enterprise innovation teams...
Top Services:
Mobile App Development
Web Development
AI Development
Software Testing
Software Development
Show more
Location
Richardson, Texas
Number of Employees
100 - 249
Average Hourly Rate
$30/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
6 Projects Listed
JumpGrowth Services
Mobile App Development
Web Development
AI Development
Software Testing
Software Development
UI/UX Design
Web Design
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
BAMM
MeroDuniya
ShopItEzy
Fireflies
VoiceStar.ai
THEOH
PennAI
Data sourced from the agency's DesignRush profile
JumpGrowth Reviews & Testimonials
Juhi Jaiswal Manager at MSM
5.0★
Mobile App Development Review from Juhi Jaiswal
Exceptional experience with Jumpgrowth, a leading React Native and App development firm. Their commitment to delivering high-quality mobile applications is truly commendable. The team's proficiency in React Native technology is evident in the seamless and responsive apps they crafted for our project. From conceptualization to deployment, Jumpgrowth exhibited professionalism and efficiency. Their transparent communication and proactive problem-solving approach made the collaboration smooth and enjoyable. The final product not only met but exceeded our expectations, showcasing their expertise in creating cross-platform solutions. Highly recommendJumpgrowth for anyone seeking top-notch React Native development services, as they consistently demonstrate innovation, reliability, and a customer-centric approach."
Juhi Gupta Developer at OTS
4.7★
Mobile App Development Review from Juhi Gupta
Jumpgrowth maintained consistent communication throughout the duration of the project. While consistency could've been better, they addressed and refined any issues that arose. Feedback for the platform has been generally positive.
Olive Gomez Business Analyst at OTS
4.7★
Mobile App Development Review from Olive Gomez
I recently had the opportunity of working with JumpGrowth on a project for my app, and I must say that it was a fantastic experience. JumpGrowth has shown exceptional professionalism and attention to detail. They clearly understood my requirements and made helpful ideas to improve my app. The communication was excellent, and they kept me informed throughout the procedure. I wholeheartedly endorse JumpGrowth's dependable and talented app development services.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Transform your business ambitions into measurable outcomes
Tech strategy advisor & delivery partner with 25+ years of experience. We deliver measurable results through a unique, AI-enabled advisory & delivery framework combining technological heritage with AI-driven optimisation to scale faster, with full governance and compliance...
Top Services:
Software Development
Cloud Consulting
DevOps Consulting
Big Data Analytics
IT Services
Show more
Location
Plano, Texas
Number of Employees
500 - 999
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
20 Projects Listed
Future Processing Services
Software Development
Cloud Consulting
DevOps Consulting
Big Data Analytics
IT Services
Digital Strategy
Managed Services
AI Development
Cybersecurity
Product Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Helping leaders use AI and technology to drive business growth
We specialize in AI-driven digital transformation. With more than 100 successful projects and six Fortune 500 clients demonstrating our technical expertise and cost-effective nearshore services...
Top Services:
AI Development
Software Development
Mobile App Development
UI/UX Design
IoT
Show more
Location
Miami, Florida
Number of Employees
50 - 99
Average Hourly Rate
$45/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
12 Projects Listed
Tres Astronautas Services
AI Development
Software Development
Mobile App Development
UI/UX Design
IoT
Web Development
Web Design
IT Services
Staff Augmentation
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Frogslayer is the custom software, AI, and automation partner for mid-market businesses in Texas. We work as a senior team on retainer AI consulting, strategy, automation, development, and implementation. Plans start at $2,500/month...
Top Services:
Software Development
Mobile App Development
Location
College Station, Texas
Number of Employees
50 - 99
Minimal Budget
$25,000 - $50,000
Frogslayer Services
Software Development
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
NCR
Wrigley
Texas A&M University
Microsoft
National Instruments
Lupl
Dunkin Donuts
AOPA
K2 Integrity
Schlumberger
Data sourced from the agency's DesignRush profile
Frogslayer Reviews & Testimonials
May Halpirn Review from Google
1.0★
May Halpirn's Review Sourced from Google
Curious about another reviewer who looked older, a job applicant, who didn't have his call returned. Frogslayer slung cliche pablum his way. Apparently they hire Jr. Devs but do they hire over a certain age? Do they know the law? Their Senior Dev is under 30 and was hired from being a student employee. Curious and curiouser. Maybe Frogslayer isn't as woke as they appear. Friend of mine went through the ringer with them was told they'd get feedback either way. Instead they got the standard blow off rejection after devoting way too much time on a company that might not value "employees over a certain age." Heads up Frogslayer. There are laws.
Jared L Review from Google
3.0★
Jared L's Review Sourced from Google
one of the only companies in town actively seeking real beginners/students to become junior level developers using all stacks and not focused on a particular one but most importantly not stuck with legacy tech debt.
Heath Phillips Review from Google
5.0★
Heath Phillips's Review Sourced from Google
These guys are incredible at what they do. They helped me design a custom software that fit all of my companies needs. The time they spend understanding what my goals were was incredible. They also made tons of suggestions to control the cost. Highly recommend this team!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Stellars Tech is a software development company specializing in fintech platforms, AI solutions, and complex data-driven systems. We help startups, growing tech companies, and enterprises build scalable digital products, modernize legacy systems, and integrate advanced technologies into their operations. Our...
Top Services:
Software Development
DevOps Consulting
AI Development
Product Design
IT Services
Show more
Location
Lewes, Delaware
Number of Employees
50 - 99
Average Hourly Rate
$80/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
1 Project Listed
Stellarstech Services
Software Development
DevOps Consulting
AI Development
Product Design
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts