Top .NET Development Companies in Sydney
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Explore Reviewed .NET Development Companies in Sydney — Find Skilled .NET Developers for Your Project
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16 Companies
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Australia
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New South Wales
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Sydney
5.0 (3 Reviews)
51
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
51
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Powering Enterprises with AI and Innovation
Seasia Infotech is an AI-driven digital engineering company with 20+ years of experience building enterprise-grade technology solutions. We help organizations design, develop, and scale secure and high-performance digital products that drive transformation and long-term growth. We operate at the intersection of AI, cloud computing, enterprise engineering, and product innovation, enabling businesses to adopt modern technologies faster and more efficiently. Our focus is on solving real-world business problems using intelligent systems, automation, and scalable architecture. We have worked with startups, enterprises, and global companies across industries such as healthcare, fintech, legaltech, e-commerce, education, logistics, and energy. Our delivery spans custom software, mobile apps, SaaS platforms, AI solutions, and cloud-native systems. At Seasia Infotech, we believe software should continuously evolve with business needs. As an AI-first engineering organization, we embed intelligence, governance, and measurable outcomes into every solution we deliver. Our Expertise Custom Software Development Enterprise Solutions (ERP, CRM, CMS) Enterprise Software Engineering & Modernization AI & Machine Learning Solutions Generative AI (Chatbots, Image & Text Generation) Agentic AI & Intelligent Automation Cloud Computing & DevOps Mobile App Development (iOS, Android, Cross-Platform) Web Development (Frontend & Backend) Data Engineering & Big Data Analytics UI/UX Design & Product Strategy Quality Engineering & AI-Powered Testing Blockchain Development IoT Solutions AR/VR Solutions Cybersecurity & Enterprise Security E-commerce Development Low-Code / No-Code Development Digital Transformation & Smart Automation We are committed to delivering high-quality, transparent, and outcome-driven solutions that help businesses reduce costs, improve efficiency, and accelerate innovation. Our goal is to empower organizations with future-ready digital ecosystems. Seasia Infotech continues to shape the future of digital transformation through AI-first thinking and deep engineering expertise.
See all 40+ Case Studies
Undisclosed/hr
$5,000+
500 - 999
Sydney, Australia
Verified Client Review
E-Commerce Engine for Web Dev Firm
Reviewed by: William Akuoko, CEO at ADEHYEE INFOTECH LTD View all 3 Reviews
5.0 (1 Reviews)
47
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
47
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Design is our passion, Technology is our medium
Designpluz is a highly experienced custom web design and software development agency in Sydney, Australia, delivering premium digital solutions tailored to the unique needs of businesses across various industries. With a strong focus on innovation, performance, and long-term scalability, we help businesses embrace complete digital transformation through custom-built technologies, modern user experiences, and intelligent digital strategies. Our expertise spans across website development, mobile apps, enterprise software, AI-powered solutions, cloud technologies, e-commerce systems, and digital growth services, enabling businesses to streamline operations, improve customer engagement, and stay competitive in an evolving digital landscape. Custom Website Design & Development We create visually engaging, user-friendly, and high-performing websites tailored to each business’s goals and branding. Our team develops custom websites, corporate platforms, landing pages, and web portals that are mobile responsive, SEO-friendly, scalable, and designed to deliver exceptional user experiences across all devices. Custom Software Development Our software development team builds tailored business applications, enterprise software, CRM systems, ERP platforms, booking systems, and workflow management solutions that improve efficiency and simplify business operations. We focus on scalable and secure software architectures designed to support long-term business growth. Mobile App Development Designpluz develops custom mobile applications for iOS, Android, and cross-platform environments. From startup apps to enterprise mobility solutions, we create intuitive and feature-rich mobile applications that enhance customer engagement and provide seamless digital experiences. SaaS Platform Development We specialise in SaaS application development for businesses looking to launch scalable cloud-based software products. Our team develops subscription-based platforms with secure infrastructure, multi-user functionality, performance optimisation, and integration capabilities tailored to evolving business requirements. AI Development & Automation We help businesses adopt intelligent technologies through AI-powered development and automation solutions. Our services include AI chatbot development, workflow automation, predictive analytics, recommendation systems, smart customer support tools, and process optimisation solutions designed to improve productivity and customer experiences. Cloud Solutions & Support Our cloud services include cloud migration, cloud application development, hosting support, server management, and infrastructure optimisation. We help businesses leverage secure and scalable cloud environments using modern technologies and platforms that ensure performance, reliability, and business continuity. API Integration & System Connectivity We provide seamless API integration services that connect websites, mobile apps, CRMs, payment gateways, inventory systems, marketing tools, and third-party applications into a unified digital ecosystem. This allows businesses to automate processes and improve operational efficiency. E-Commerce Development Designpluz develops powerful e-commerce websites and online store solutions using Shopify, WooCommerce, Magento, and custom frameworks. Our e-commerce solutions are designed to improve customer experiences, increase conversions, and simplify product and order management processes. UI/UX Design & Digital Branding Our creative team focuses on delivering engaging UI/UX designs that improve usability, customer interaction, and brand consistency. We also provide logo design, graphic design, and digital branding services that help businesses establish a strong and professional online identity. SEO & Digital Growth Services Beyond development, we support businesses with SEO, digital marketing strategies, performance optimisation, and ongoing website maintenance services. Our goal is to help businesses improve online visibility, attract qualified traffic, and generate long-term digital growth. At Designpluz, we combine creativity, strategy, and advanced technology to deliver complete digital transformation solutions for startups, growing businesses, and enterprises across Australia. With a strong commitment to quality, innovation, and ongoing support, we partner with businesses to create future-ready digital platforms that drive measurable business success.
See all 6+ Case Studies
$50-$99/hr
$1,000+
40 - 50
Sydney, Australia
Verified Client Review
Strong Technical Partner with Great Communication
Reviewed by: Barry Dorgan, Senior Director of Information Security View all 1 Reviews
5.0 (1 Reviews)
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Unleashing Potential Through Custom Software
Microknot, Founded in 2021, we aim to empower businesses with cutting-edge software solutions tailored to their unique needs. As Microsoft-certified software developers in Sydney, we utilise a modern technology stack to create robust and scalable software solutions. At Microknot, we are driven by goals of business automation, productivity, and efficiency, achieving these objectives through a microservices architecture and cloud-native development. Specialising in web development, mobile app development, eCommerce development, web application development, and enterprise software, we deliver innovative and efficient solutions to help your business thrive in the digital age.
See all 3+ Case Studies
$50-$99/hr
$500 - $1,000
15 - 50
Sydney, Australia
Verified Client Review
Expert software perfectly aligned with our premium wellness brand.
Reviewed by: Georgia Copp Barton, CEO View all 1 Reviews
4.9 (3 Reviews)
35
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
35
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Shaping Success through Innovation & Technology Since 2013
Founded in 2013, iFour Technolab is a custom software development company and a proud Microsoft Certified Solutions partner, specializing in providing full-scope software development services to clients across the globe. Thanks to our extensive industry experience spanning a decade, we are equipped with the know-how to fulfill the needs and requirements of our diverse clientele, including prominent Fortune 500 organizations, SMEs, and large-scale enterprises. iFour Technolab’s team of knowledgeable developers has the understanding and skills required to comprehend your business goals and assist you in achieving them with efficiency. Being a leading software development company, we are well-versed in the principal technological stacks and frameworks, such as Angular, .NET, and Java. By blending our long-standing expertise and industry background, we create more than just software solutions; we construct experiences tailored to fulfill your organizational specifications. We stay current with the latest trends and emerging patterns to develop top-notch solutions aligned with your business requirements. If you need a reliable software development partner, choose iFour Technolab. We're here to exceed your expectations and boost your business.
View ifourtechnolab Pvt Ltd Profile
$50-$99/hr
$0 - $100,000
500 - 999
Sydney, Australia
Verified Client Review
Custom Software Development for Security Services Provider
Reviewed by: Kuldeep Sharma, Director at UR Protection Security Servcies View all 3 Reviews
0.0 (0 Reviews)
32
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
32
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Modern AI, Mobile & Web Application Development Company
CREUTO is a digital product engineering and technology partner helping startups, growth-stage companies, and enterprises build scalable, high-performance software solutions. We specialize in transforming ideas into real, market-ready digital products and helping businesses modernize, scale, and innovate through technology. In today’s fast-moving digital world, businesses need more than just developers — they need a reliable technology partner who understands their vision, aligns with their goals, and delivers solutions that create real business impact. At CREUTO, we focus on building long-term partnerships and delivering technology that enables sustainable growth. Our core expertise spans across AI solutions, mobile application development, custom software development, and end-to-end digital product engineering. From early-stage startups building their first MVP to enterprises modernizing legacy systems, we provide the technical expertise, strategic thinking, and execution capability required to deliver scalable and future-ready products. We work closely with founders, product teams, and business leaders to understand their challenges, identify opportunities, and build tailored technology solutions that solve real problems. Our approach combines product thinking, user-centric design, and modern engineering practices to create software that is reliable, scalable, and aligned with business objectives.
See all 1+ Case Studies
$25-$49/hr
$1,000 - $5,000
10 - 49
Sydney, Australia
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
AI and Software Developers
Drive growth. Move faster. Reduce costs. AI Agents and Software built by top engineers. We build the apps and intelligent AI agents that 10× your team's productivity, from customer-facing products to internal automation. AI consulting, enablement and management to help your team thrive.
View Team 400 Profile
N/A
$5,000+
9+
Brisbane, Australia
0.0 (0 Reviews)
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Partner for Web, App & Cloud Solutions
NexusByte is a Sydney-based digital and IT solutions agency specialising in web design and development, mobile app development, ecommerce solutions, cloud consulting, and cybersecurity services. We help startups, small to mid-sized businesses, and growing organisations build secure, scalable, and high-performing digital products. Our team delivers custom websites, web applications, and software solutions backed by reliable IT support, cloud infrastructure, and security best practices. With a practical, results-driven approach and transparent communication, NexusByte partners with businesses to streamline operations, enhance digital performance, and support long-term growth.
View NexusByte Technology Profile
N/A
$1,000 - $5,000
11 - 50
Sydney, Australia
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
Your Growth-Oriented Technology Satellite
DOIT Software is a reliable technology partner helping companies accelerate growth through custom software development and advanced .NET solutions. We work with startups, SMBs, and enterprises to design, build, and scale high-performance digital products that solve real business challenges and deliver measurable ROI. Our core services include: IT Staff Augmentation: Quickly extend your team with experienced, vetted engineers who integrate seamlessly and drive projects forward. Custom Software & Mobile App Development: End-to-end development—from strategy and architecture to deployment—focused on scalability, security, and efficiency. With a results-driven approach and deep technical expertise, DOIT Software turns ideas into powerful, future-ready solutions that move your business ahead.
View DOIT Software Profile
$25-$49/hr
$10,000+
10 - 49
Sydney, Australia
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
Construct and motivate extraordinary experiences
Sitback is a Sydney-based Human-Centred Design and Development Agency focused on creating data-driven digital experiences that deliver measurable results. Leveraging behavioural science, user experience design, and expert web development, we help organizations engage effectively with their audiences while providing 24/7 website support and ongoing optimisation for continuous improvement. Our expertise spans complex, large-scale digital projects across platforms including Drupal, Sitecore, Umbraco, and WordPress, serving leading Australian organizations in government, financial services, education, healthcare, and not-for-profit sectors. By combining analytics, innovative design, and robust development practices, we ensure every project aligns with client goals and maximizes user engagement. At Sitback, our mission is to design, develop, and inspire exceptional digital experiences—enhancing client satisfaction, empowering end-users, and fostering a culture of creativity and collaboration within our team. Partner with us to transform your digital presence into a strategic advantage that drives growth and meaningful customer connections.
View Sitback Solutions Profile
$200-$300/hr
$10,000+
10 - 49
Sydney, Australia
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
IT consulting done correctly!
Diatom Enterprises is a leading custom software development company based in Latvia, originally founded in Canada. With over 18 years of experience, we specialize in delivering high-quality, scalable software solutions for businesses across industries worldwide. Our expertise spans .NET, Blazor, JavaScript, React, Angular, Node.js, and Ruby on Rails, empowering us to build dynamic web, mobile, and desktop applications tailored to client needs. At Diatom Enterprises, we blend innovation, technical excellence, and affordability to help businesses accelerate digital transformation. Trusted globally, we believe in long-term partnerships—many of our clients have grown into friends through years of successful collaboration and shared success.
View Diatom Enterprises Profile
$25-$49/hr
$10,000+
50 - 249
Sydney, Australia
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
When you consider IT, we digitize
Intuition SofTech is a leading software design and development company delivering innovative digital solutions since 2016. We specialize in custom mobile app development, web applications, VR/AR solutions, full-stack development, and UI/UX design, helping businesses and startups turn ideas into powerful, market-ready products. Our expert team follows a full-cycle software development process—from in-depth analysis and design to development, testing, and ongoing maintenance—to ensure exceptional performance and reliability. With deep technical expertise and a passion for innovation, we help organizations gain a competitive edge through cutting-edge technology. At Intuition SofTech, solving business challenges with smart, scalable software is our strength.
View Intuition SofTech Profile
$50-$99/hr
$25,000+
50 - 249
Sydney, Australia
0.0 (0 Reviews)
0.0 (0 Reviews)
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Setting the Standard for Staff Augmentation and IT Solutions
Cyber InfraStructure INC. (CIS), founded in 2003, is a global IT consulting and staff augmentation leader with offices in Central India, the USA, and the UK. We specialize in delivering top-tier technology solutions, helping businesses scale their teams and optimize operations efficiently. With experience serving over 2,100 clients across 100+ countries, we support industries including education, finance, travel, retail, manufacturing, gaming, and healthcare. CIS is recognized for excellence, holding CMMI Level 3, ISO 9001:2018 certifications, and partnerships such as Microsoft Gold Partner, Magento Silver Solution Partner, and memberships with Drupal and Joomla. Our focus is delivering innovative, reliable IT solutions that drive measurable business results.
View CIS Profile
< $25/hr
$10,000+
250 - 999
Sydney, Australia
0.0 (0 Reviews)
0.0 (0 Reviews)
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We Bring It to Life.
XpertGo is a trusted business solutions and consulting agency dedicated to helping companies and professionals succeed. We provide innovative strategies, expert guidance, and tailored services to navigate challenges, optimize performance, and drive growth in today’s dynamic business environment, making us a reliable partner for long-term success.
View XpertGo Profile
$50-$99/hr
$10,000+
10 - 49
Sydney, Australia
0.0 (0 Reviews)
0.0 (0 Reviews)
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Turn Ideas into Reality
Sentia is a software development consultancy specializing in custom application development, UI/UX design, and digital product strategy for web, iOS, and Android platforms. Founded in 2006, we empower clients with full project transparency and flexibility, allowing evolving requirements without rigid constraints. Our agile, client-centered approach ensures scalable, user-focused solutions that adapt to changing business needs while delivering high-quality, performance-driven digital products.
View Sentia Profile
N/A
$25,000+
10 - 49
Sydney, Australia
0.0 (0 Reviews)
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
AI-driven, end-to-end technology solutions
NSC Software is a Vietnam-based software development and technology consulting company that provides senior-level engineering talent to enterprises across Australia, the UK, Europe, and the US. The company sources engineers exclusively from the top tier of Vietnam’s IT workforce, with every team member holding a minimum of six years of professional experience and the majority operating at senior level. NSC Software delivers full-cycle software development, from product ideation and MVP through enterprise-scale platforms, alongside strategic technology advisory, cloud-native engineering, DevSecOps, data pipeline development, and emerging technology services spanning AI and blockchain. Its delivery model blends experienced engineering talent with AI-enhanced development workflows to help global companies build scalable, high-performing digital products faster and more cost-effectively than traditional Western development markets allow. Teams work in overlapping hours with Europe, Australia, and the US to ensure real-time collaboration. Businesses and startups seeking premium software engineering talent at competitive rates choose NSC Software for its senior-only staffing model, technical rigor, and long-term partnership approach.
View NSC Software Profile
N/A
$1,000+
50 - 249
Sydney, Australia
0.0 (0 Reviews)
0.0 (0 Reviews)
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We transform ideas through innovation and technology
IDEAQU is a Sydney-based software development company specializing in custom mobile and web application engineering for clients ranging from startups to large enterprises. The agency's core capabilities include cross-platform iOS and Android app development, complex web application builds, cloud infrastructure, and AI and machine learning integration, alongside specialized expertise in payment systems, point-of-sale technology, geo-location services, and Internet of Things (IoT) solutions. IDEAQU supports clients through the full software development lifecycle, from initial product engineering and UX/UI design through big data and analytics implementation, quality assurance, and ongoing software consulting. The company positions itself around values of integrity, respect, and transparency, aiming to be a results-oriented technology partner rather than a purely transactional vendor. With a highly qualified in-house team and a focus on customer care throughout project delivery, IDEAQU is suited to organizations seeking a hands-on partner for mobile-first, cloud-connected, and AI-enabled software products.
View IDEAQU Profile
N/A
$1,000+
10 - 49
Sydney, Australia
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