Top .NET Development Companies in Colorado
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List of the Best .NET Development Agencies and .NET Developers in Colorado
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
11 Companies
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Colorado
4.9 (40 Reviews)
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and has 5+ verified reviews
4.9 (40 Reviews)
79
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
79
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom software and AI development, scoped and priced before code
SoftDoes is a Kansas City custom software and AI development company, founded in 2019, that builds custom software, web platforms, mobile apps, MVPs and AI automation for startups, growing businesses and enterprise teams in the United States. One SoftDoes team handles discovery, UX and UI design, development, testing, launch and ongoing support. What SoftDoes builds: Custom software: internal operations platforms that replace spreadsheets, customer and patient portals, SaaS products and integrations, built with React, Node.js, Python and .NET on AWS and Azure. AI development: AI agents, chatbots, document extraction and workflow automation on OpenAI and Anthropic Claude models, added to the systems a business already uses. Web and e-commerce: custom web applications, business websites and online stores, including Shopify. Mobile apps: iOS and Android apps for customers and field teams. Best fit for SoftDoes, with results from client reviews: Operations teams replacing manual work: an educational support company cut time spent on administrative work by 30% and internal follow-up emails by 35%, and a real estate agency cut time spent on manual administrative tasks by 35%. AI automation: an education company cut student-teacher matching from 15 minutes to under 5. Enterprise and public sector: a $200,000+ reporting platform for a government agency with more than 10,000 employees cut reporting time by 30%. Customer-facing apps: a marketing company's new mobile app raised engagement by 34% and 90-day retention by 22%. "[SoftDoes] built our full AI-powered SaaS platform from scratch. They were communicative and reliable, consistently delivering quality work on schedule." (Upwork client review, AI-powered SaaS platform for construction) How SoftDoes prices work: every project starts with a written scope and price before any code is written. A paid discovery and estimate costs $490 and is credited toward the build. Hourly development starts at $50, AI automation projects at $2,500, MVPs at $8,000, dedicated developers at $4,000 per month and support plans at $500 per month. Clients own 100% of their code, accounts and IP from day one. Track record: as of October 2026, SoftDoes has completed more than 600 client engagements since 2020 and is rated 4.92 out of 5 across 283 rated engagements on Upwork and 5.0 on Clutch. SoftDoes is a member of the AWS Partner Network, a Zapier Silver Solution Partner and a Shopify Partner. SoftDoes carries general liability, professional liability (errors and omissions) and cyber liability insurance. A certificate of insurance is available on request.
See all 21+ Case Studies
$50-$99/hr
$1,000+
50 - 249
Kansas City, USA
Verified Client Review
Internal Platform Design & Development for a Manufacturing Company
Reviewed by: Anonymous, Analyst at Manufacturing Company View all 40 Reviews
5.0 (2 Reviews)
5.0 (2 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Inspiring Creativity to Unleash Potential
ApexTech is a trusted node.js development company and a certified Salesforce partner with a decade of professional experience in providing comprehensive digital solutions along with world-class customer service. Their dedicated team of experts accelerates businesses by improving inefficient processes and implementing the right set of technologies. They offer technical excellence and unparalleled expertise in the Salesforce platform, its core products, and custom software engineering. Founded in 2011, ApexTech has helped enterprises adopt high-end cloud solutions across industries, including Fintech, Healthtech, Insurtech, Logistics, Travel & Hospitality, and Food Retail. Their passion is to provide value-added experiences to the clients and their customers through a personalized approach.
See all 4+ Case Studies
$25-$49/hr
$25,000+
10 - 49
Littleton, USA
Verified Client Review
Mobile App Development for Medication Management Company
Reviewed by: Alex Korol, Sr Director of Product Management at MedMinder View all 2 Reviews
5.0 (3 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom Software and Web Application Development
Volare Systems is a custom software development company based in Denver, Colorado. They build high-quality web and mobile apps that run fast and look great on every device. They are small, friendly, and easy to work with. Since 2009, they’ve been delivering software solutions for their clients like the Air Force, AT&T, Jeffco Public Schools, Amerit Fleet Solutions, and more.
See all 2+ Case Studies
$150-$199/hr
$25,000+
10 - 49
Denver, USA
Verified Client Review
Dev Partnership with Auto Company
Reviewed by: David Sharp, Director of Process Engineering at Amerit Fleet Solutions View all 3 Reviews
0.0 (0 Reviews)
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Dedicated Teams, Smarter Solutions.
Infigo Solutions helps businesses overcome technology challenges with innovative, tailored solutions. We are a growing software company focused on exceptional service and long-term partnerships. Our skilled developers and IT professionals deliver efficient results aligned with client goals. In the US, we offer managed IT resources, providing top developers quickly and seamlessly. Beyond technology, we empower businesses to achieve lasting success.
View Infigo Solutions Profile
< $25/hr
$3,000 - $7,000
10 - 50
Denver, USA
4.9 (5 Reviews)
4.9 (5 Reviews)
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Sherpa for the Digital Path Ahead
Located in Denver, Colorado, Epic Apps is a leading software design and development agency that has been crafting custom website and mobile app solutions since 2012. We excel in transforming ideas into robust digital assets for businesses, government agencies, entrepreneurs, and non-profits, boasting a successful history of delivering hundreds of innovative applications. Our Specializations - Mobile App Development: Our expert team specializes in creating high-quality, scalable mobile apps for iOS and Android using advanced technologies like Swift, Java, React Native, and Flutter. - Custom Website Development: We design and build performance-driven websites with various frameworks, including WordPress, React, .NET, and Ruby on Rails, ensuring security and tailor-made solutions for each client. We provide dedicated resource options for smooth collaboration with your IT team, ensuring precision and efficiency in achieving project objectives. At Epic Apps, we seamlessly blend creativity with technical know-how to empower businesses and stimulate innovation. Elevate your digital presence—contact us today for a complimentary consultation to explore your project needs!
View Epic Apps Profile
$50-$99/hr
$10,000+
10 - 49
Greenwood Village, USA
Verified Client Review
Developing a Mobile App for a Travel Fitness Platform
Reviewed by: Jeremy Gordon, Co-Founder & CEO at The Travel Trainer LLC View all 5 Reviews
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We use transparent approach. Consider the difference
Sunmait Technologies, a US-based software development firm, specializes in fintech and e-commerce, collaborating globally in 20+ countries. Key features include: 7+ years in the global software market 250+ skilled specialists in Europe and the US 140+ successfully completed projects worldwide Offices in the USA, UAE, Poland, and Georgia Client-friendly time zone for seamless collaboration Extensive expertise in fintech and e-commerce Flexible collaboration options
View Sunmait Technologies Profile
$50-$99/hr
$10,000 - $20,000
200 - 251
Aurora, USA
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Web & Mobile App Development Company
Concetto Labs, India India-based company established in 2014. Concetto Labs is a leading solution provider for Cross Platform / Hybrid Mobile App development.
View Concetto Labs Profile
$50-$99/hr
$30 - $60
100 - 200
Broomfield, USA
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0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Where Imagination Meets Innovation
At Brilliant Systems, we live by one simple creed: "No vision too big, no tech too complex". We’re a full-service digital solutions powerhouse specializing in cutting-edge web design, AI-driven development, and future-proof technology implementation. Whether you’re a startup dreaming big or an enterprise ready to disrupt your industry, we transform visions into scalable, high-performance digital realities. What We Do Bespoke Web & App Development: From sleek SaaS platforms to immersive e-commerce experiences. AI & Automation: Custom ChatGPT integrations, predictive analytics, and process optimization. UX/UI That Converts: Data-driven designs focused on user engagement and ROI. Blockchain & Web3: Smart contracts, dApps, and secure decentralized architectures. Why Choose Us? 500+ Projects Delivered: Proven expertise across 12 industries, from healthcare to fintech. Tech-Agnostic Approach: We use the right tools for your goals—React, Flutter, Python, CRMs, or beyond. White-Glove Service: Dedicated teams that align with your workflow, not vice versa. Ethical by Design: AI audits, accessibility compliance, and sustainable coding practices. Our Difference We don’t just write code—we engineer competitive advantages. Our R&D lab stays ahead of trends (think: generative AI, edge computing), while our agile process ensures your project launches faster, smarter, and under budget.
View Brilliant Systems Profile
$25-$49/hr
$15,000 - $25,000
50 - 200
Denver, USA
4.8 (1 Reviews)
4.8 (1 Reviews)
22
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
22
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
The .Net CMS Agency
We founded a business in 2001 with the goal of bridging the gap between the newest technology and the demands of marketers. We have developed into a consultative-first technology company over the years, including innovation and openness into all aspects of our work. The hand-raisers are us. We are enamored with technology. Additionally, we approach clients honestly in order to provide the greatest solution that has a significant impact. We are this. We employ this person. To assist our clients thrive with digital technology, we exclusively seek team members who share our values of openness, effectiveness, and high value.
View BlueModus Profile
$150-$199/hr
$50,000+
50 - 249
Denver, USA
Verified Client Review
Kentico Migration & Web Maintenance for Medical Device Firm
Reviewed by: Cara Hugghins, Digital Marketing Manager at LivaNova View all 1 Reviews
0.0 (0 Reviews)
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Quality. Transparency. Efficiency.
Founded in 2013, Valor Software is a global software consulting and engineering company specializing in high-quality, scalable, and open-source–driven solutions. We partner with CTOs, engineering leaders, and growing businesses to deliver expert technology consulting and custom software development that drives measurable results. With a team of 100+ experienced software engineers, we combine deep technical expertise with business-focused thinking to solve complex challenges efficiently. Valor Software is an active contributor to the open-source community, leveraging and enhancing modern frameworks and technologies to accelerate development, improve productivity, and ensure long-term solution stability. Our services include software architecture consulting, full-cycle software development, system modernization, and team augmentation for organizations seeking reliable, future-ready platforms. We are known for being transparent, collaborative, and easy to work with. Our ability to communicate clearly, deliver projects on time, and adapt to evolving business needs sets us apart. Trusted by companies worldwide, Valor Software consistently delivers innovative, robust solutions that scale with growth. We believe in the transformative power of technology to solve real-world problems, empower teams, and create lasting business value through precision, creativity, and engineering excellence.
View Valor Software Profile
$50-$99/hr
$10,000+
50 - 249
Lakewood, USA
0.0 (0 Reviews)
0.0 (0 Reviews)
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Digital consulting that makes an impact
Tonic is a values-driven technology agency based in Denver, Colorado, specializing in building secure, high-performing, and scalable enterprise digital platforms. The agency serves organizations that need a strong technology partner to carry out complex digital ecosystems, offering services in technology consulting, custom application development, mobile app development, and staffing. Tonic's cross-disciplinary team of strategists, designers, and engineers focuses on improving the usability, performance, security, and scalability of enterprise applications. Guided by the core values of Do the Right Thing, Get Involved, and Have Fun, Tonic partners with clients ranging from startups to international enterprises to deliver purposeful digital solutions that drive meaningful business impact.
View Tonic Profile
$150-$199/hr
$25,000+
10 - 49
Denver, USA
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