Top C# Development Companies in New South Wales
SelectedFirms reviews agencies and verifies client feedback to support informed decisions. [How SelectedFirms Ensures Trust]
Not sure which
agency is right for you?
Tell us about your project, and get matched with agencies that fit your requirements.
List of the Best C# Development Agencies and C# Developers in New South Wales
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
16 Companies
Filter by
-
Australia
-
New South Wales
5.0 (48 Reviews)
Verified
Look for SF Verified Agencies
Verified agencies on SelectedFirms have passed credibility checks confirming they are legitimate businesses with a proven digital presence. Explore Verification Process
and has 5+ verified reviews
5.0 (48 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
Delivering Digital Excellence
Since 2011, Bytes Technolab has helped founders turn ideas into market-ready products and growing businesses modernize legacy systems and automate operations with AI. For Startups: You have a validated idea or fresh funding but nobody senior on the technical side. Or your build has stalled, for whatever reason. - MVP & Product Build: your first product, designed and built for real users. - Fractional CTO: senior technical leadership, part time, led by our CTO, Bhavik Shah. - Product Rescue: we review where your build stands, tell you what's worth keeping, and get it moving again. We also help when you need your product designed (UI/UX Design), an older product brought up to date (Product Modernization), a technical review before investors look (Tech Due Diligence & Code Audit), or the team that built your product to keep building it (Product Engineering Team). For Businesses: Your team already uses AI tools, but they aren't part of how the business runs. Renewals keep rising for tools that only half fit. Older systems stand in the way of what you want to do next. - AI Agents & Orchestration: we automate repetitive work in your business, such as lease document checks in real estate, admissions queries in education, or maintenance requests in manufacturing. - SaaS Replacement: software built around how your business actually works, instead of another subscription. - Legacy System Modernization: we rebuild or upgrade the core systems your business runs on, so they support what comes next. We also help when you want one specific process automated (AI Workflow Automation), cloud costs brought under control (Cloud Optimization), or a long-term engineering center of your own (Global Capability Center). Product Consulting with Ownership at the Core. We tell you what's worth building, including when an idea should wait, and the team that builds it stays to support it. Clients stay with us for five and ten years. Say hello: hello@bytestechnolab.com | +1 408 5495015 25298 FM 2978 Rd, Unit A, Tomball, TX 77375, USA Get the plan before you spend the budget: Bytes Launchpad for founders. AI Consulting Services for businesses.
See all 13+ Case Studies
$25-$49/hr
$1,000 - $10,000
100 - 249
Blacktown, Australia
Verified Client Review
Webflow Site Development for Creative Agency
Reviewed by: Taylor Powers, Project Manager at Creative Agency View all 48 Reviews
5.0 (5 Reviews)
54
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
54
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Global software development company
Scopic is a leading custom software development company that helps businesses accelerate growth by combining advanced engineering with AI-driven innovation. With nearly two decades of industry experience, Scopic delivers scalable, results-focused software solutions designed to improve efficiency, unlock new opportunities, and future-proof organizations. Backed by a global team of 250+ experts across six continents, Scopic has successfully delivered more than 1,000 projects for clients worldwide. The company’s consistent performance has earned over 100 verified reviews on trusted platforms such as Clutch, DesignRush, Guru, and Google, reinforcing its reputation for quality and reliability. Scopic offers end-to-end software development services, including custom AI development, web, mobile, and desktop application development, AWS cloud services, cloud architecture and optimization, UX/UI design and prototyping, and dedicated staff augmentation. Its solutions are tailored to meet complex business needs across industries such as healthcare, education, media and entertainment, real estate, manufacturing, eCommerce, and blockchain. What sets Scopic apart is its ability to deliver enterprise-grade solutions with competitive pricing, global time-zone coverage, and strict security standards. The company maintains HIPAA-compliant teams for healthcare projects and is SOC 2 Type I certified, demonstrating a strong commitment to data protection and operational excellence. Scopic is a trusted technology partner for organizations seeking secure, innovative, and scalable software solutions.
See all 6+ Case Studies
$50-$99/hr
$10,000+
250 - 999
Blacktown, Australia
Verified Client Review
Mobile App, Web Dev & SEO for Temperature Controller Co
Reviewed by: Scott Shannon, President at SDS Industries View all 5 Reviews
5.0 (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
Trusted App & Software Developer Australia
Supportsoft specializes in designing and developing custom app and software solutions that are tailored to meet the unique needs of your business. Our team of experienced developers is dedicated to providing top-notch service and delivering high-quality products that exceed your expectations. We believe that the key to success is collaboration, and we work closely with our clients to ensure that their vision is brought to life. Whether you need a mobile app, web application, or custom software, we have the expertise and experience to deliver a solution that meets your requirements. We pride ourselves on being a one-stop-shop for all your digital needs. In addition to designing and developing custom app and software solutions, we offer a range of digital services that can help take your business to the next level. From web design and development to digital marketing and branding, our team has the skills and expertise to handle all aspects of your digital presence. We understand that your time is valuable, which is why we offer comprehensive services that save you time and hassle.
View Supportsoft Technologies Profile
$50-$99/hr
$10,000+
50+
Sydney, Australia
Verified Client Review
Web Development for Nonprofit Charitable Organization
Reviewed by: MaMoon Ali, Manager Events & Promotions at Labsans Australia Association View all 3 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)
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
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
Need help choosing a company?
Share your project requirements and we’ll connect you with the best-matched c# development companies – for free.
Get Matched Now
-
100% Free
No obligation and no hidden fees -
Save Time
We match you with the right companies -
Expert Support
Get help from our research experts
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)
11
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
11
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom software development for Australian businesses
Dev House Australia is headquartered in Sydney, with delivery across Australia and APAC. Backed by Dev Centre House’s 14+ years of global product engineering, we build custom web, mobile, cloud, and AI solutions for enterprises and startups, with local accountability, senior technical leadership, and structured execution from day one. Dev House Australia is a Sydney based software engineering company and a member of the Dev House international group, operating alongside our established European and Middle Eastern offices. With over 70 successfully delivered projects globally, our specialised teams deliver technical results through a Software Squads as a Service model, deploying small, senior engineering squads focused on driving clear commercial outcomes. From our headquarters in Sydney, we serve enterprise and scale-up clients across Australia and the wider APAC region. Our local account managers and architects leverage our group’s global delivery capabilities to combine rigorous engineering standards with deep technical expertise.
View Dev House Australia Profile
Undisclosed/hr
$1,000 - $10,000
50 - 249
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
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
Your Source of Expert Programmers
GetAProgrammer is a Sydney-headquartered software development and outsourcing company with branch offices in the United States, United Kingdom, and India. Since 2005, the team has provided manpower outsourcing and custom-oriented development services to clients across education, legal, accounting, financial services, medical, logistics, and trade industries. GetAProgrammer's offerings span custom software development, web development, ecommerce solutions, mobile application development, and online marketing, supported by more than 150 professionals across six countries. The company differentiates itself through a customised, outcomes-focused approach that assembles dedicated development teams tailored to each client's requirements, ensuring high-quality deliverables and timely project completion. Clients consistently highlight the team's responsiveness, professionalism, and ability to serve as a long-term extension of their business. With over a decade of consistent performance, GetAProgrammer continues to help Australian and international businesses scale their technology capabilities cost-effectively.
View GetAProgrammer Profile
N/A
$1,000+
50 - 249
St Leonards, 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
A product development company delivering robust digital products
Metarouge Innovations is a Sydney-based business and technology solutions firm founded in 2010, focused on developing innovative software enabled by disruptive technologies for organisations of all sizes. The team builds web applications, Android and iOS applications, enterprise mobile applications, ecommerce solutions, and ERP systems, covering the full software development lifecycle from business analysis and design through to quality assurance and post-project support and maintenance. Metarouge's client base ranges from government entities and multi-million-dollar enterprises to startups with strong entrepreneurial drive, reflecting the team's ability to scale its approach to each engagement. More recently, the company has expanded into machine learning, cloud consulting, chatbots, and voice applications, alongside AI product suites that automate workflows and enable conversational interaction with databases and documents. Spread across three countries, Metarouge combines experienced digital practitioners and visionary product developers to act as a genuine catalyst for client digital transformation.
View Metarouge Innovations Profile
$25-$49/hr
$1,000+
10 - 49
Barangaroo, Australia
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
Enterprise Systems, Startup MVPs & IoT Integrated Software
XEESOFT is a software development agency with offices in Islamabad, Pakistan, and Kingsford, Australia, bringing over 16 years of experience to enterprise, startup, and hardware-integrated software projects. The agency's core services span web development, mobile app development, cloud architecture, IoT and hardware integration, AI and machine learning, and biomedical device software. XEESOFT is particularly known for integrating over 30 hardware peripherals into custom software, including medical devices, POS systems, and industrial sensors, giving it a distinctive edge in hardware-software convergence projects. The team has completed 120+ projects supporting systems used by 600,000+ daily users, working with clients such as HP and Cybertonica. As a Top Rated Plus agency on Upwork with a reported 100% job success rate, XEESOFT combines technical breadth with proven delivery reliability. Its specialization in FDA-compliant biomedical software and enterprise-grade IoT integration makes it a strong choice for organizations needing secure, scalable, hardware-aware software development.
View XEESOFT Profile
$25-$49/hr
$1,000+
10 - 49
Kingsford, Australia
Need help choosing a company?
Share your project requirements and we’ll connect you with the best-matched c# development companies – for free.
Get Matched Now
-
100% Free
No obligation and no hidden fees -
Save Time
We match you with the right companies -
Expert Support
Get help from our research experts
Why Companies Trust SelectedFirms?
SelectedFirms bridges the gap between businesses and digital service providers as a trusted B2B research and listing platform. With the trust of 14,000+ companies and a growing community of 1M+ users, we empower businesses with reliable insights to make confident decisions.
Human-verified companies
We manually review companies to ensure they meet our quality standards before they appear on the platform.
Research-driven rankings
We rank companies using a clear ranking methodology based on real client feedback, expertise, market credibility, and how well teams execute — not hype.
Always up-to-date insights
We regularly refresh listings with new reviews, case study updates, and market changes to keep decisions relevant.
Verified credibility signals
From verified badges to editorial reviews, we highlight companies that show real commitment to quality and transparency.
