
Custom IT Services
Starting something new? Wrestling with legacy tech? Or need something to scale? That’s where our custom IT services come in.
Onix is your “let’s-finally-get-this-done” team, ready to build, stabilize, or innovate your product with AI. No matter what stage you're at, we make your product faster, smoother, and smarter than it is today.
AI-powered development
Automation, analytics, and smarter workflows.
Faster time-to-market
From idea to launch.
Built to scale
Enterprise-grade architecture and senior engineers.
Seamless integration
CRMs, ERPs, booking engines, and platforms.
Rescue & modernize
Stabilize, refactor, and get your product back on track.

Stats
Trusted by clients
worldwide
82%
of clients return with new projects
100%
of recovery workflows are AI-powered
3+
years average client retention
95%
say we uncovered issues their previous team missed
87%
of rescue audits lead to vendor change within 10 days
25+
years of software development experience
IT services & industry-focused solutions
We help you tackle your toughest tech challenge, whether it’s building something new, upgrading an old system, or scaling your product fast.
Our professional IT services save you time, reduce risks, and boost your business growth.
Travel & hospitality software development
Want to make running your travel business easier and more profitable?
We provide travel software development services to build booking engines, reservation platforms, scheduling systems, and more, helping you automate processes, delight your users, and drive revenue growth.

Discovery & product strategy
UI/UX design
Web development
Mobile app development
Custom software development
CRM/ERP development
24/7 support & maintenance

Our real results speak louder than promises

Duration:
2+ years
Team size:
8 developers
Keith Scioli
CEO and founder, Golf Live
Online Golf Coaching App
From a broken vendor handoff to a scalable platform.

Duration:
4+ years
Team size:
9 developers
Eoin Le Masney
CTO, Vyra
Jack Dwyer
CEO, Vyra
Learning Platform Development
From MVP to a full-scale B2B solution.

Duration:
10+ years
Team size:
10 developers
Tal Revivo
CEO and founder, Adoric
SaaS Marketing Platform
From bug-fixes to a complete product rescue.

Duration:
3+ years
Team size:
9 developers
Ryan Rosenbaum
CPO, Phlex
Smart Swim Training Tracker
From concept to a community-loved app.
Our core expertise
Travel & hospitality software development
Travel platforms juggle a lot: bookings, availability, pricing, payments, and personalization. We build travel software solutions that take care of the hard stuff, so your users get a great experience, and your business has room to grow.
Custom booking engines & reservation systems
Scheduling & resource management tools
AI-powered personalization & recommendation engines
Fraud detection & secure payments
Legacy travel platform modernization





We build and rescue projects with modern tech to deliver real business impact
Today’s products can’t survive on simple development alone. That’s why our IT services and solutions combine AI, automation, smart integrations, and modern engineering practices to help your business run smoothly, deliver better experiences, and stay prepared for what’s next.
AI-driven product intelligence
We integrate intelligent features into custom software products, such as smart search, recommendations, and data-driven logic, to help automate decisions, personalize experiences, and support smarter business operations.
Generative AI & workflow automation
We implement generative AI within digital products and internal tools to automate content-related tasks, customer interactions, and operational workflows, helping teams work faster and reduce manual effort.
Cloud-native platforms & scalability
We design, build, and modernize cloud-native applications that are secure, resilient, and ready to scale, supporting growing user bases, high workloads, and long-term product evolution.
Smart integrations & digital ecosystems
We build and integrate APIs, third-party services, and legacy systems into cohesive digital ecosystems, ensuring reliable data flow, stable operations, and seamless user experiences across platforms.
Immersive & interactive experiences (AR / XR)
We develop immersive and interactive experiences, including AR-based apps, virtual training, and interactive demos that enhance user engagement and support more intuitive product interactions.
Intelligent vision solutions
We implement computer-vision-based features that automate visual tasks such as recognition, verification, and inspection, helping businesses improve accuracy, reduce manual work, and optimize operational processes.
Your product can do more. Make your software smarter, faster, and ready to scale with AI, automation, and advanced engineering.

See our projects


France
Tourism
MisterB&B travel platform – 1M+ listings in 200 countries
Solution:
We delivered custom travel software development to upgrade the outdated platform, integrate multiple third-party services, enhance search functionality, and implement a fraud detection and secure payment system.
Result:
1 million accommodations in 200 countries, 900K+ LGBTQ members, and recognition by Forbes as the “gay Airbnb.”


Australia
Healthcare
Digital health white-label solution – 6 apps live across platforms
Solution:
Onix developed the platform from scratch, redesigned the UX, implemented a flexible task management system and an admin dashboard, and ensured the platform is scalable and customizable.
Result:
6 branded apps live on markets, faster patient self-care, and a scalable platform supporting multiple healthcare organizations.


USA
Sports & Fitness
Fitness & nutrition platform – all-in-one coaching solution
Solution:
As a software project rescue company, Onix rebuilt the platform architecture, developed a new website and mobile apps, and implemented new functionality.
Result:
A scalable all-in-one solution that lets coaches manage clients, automate routines, and grow their business efficiently.


USA
Beauty, Cosmetics
Cosmetics AI app – 45K products analyzed for safe skincare
Solution:
Onix built an AI-powered iOS app with a sophisticated admin panel, enhanced project architecture, ingredient database powered by ML, and a personalized skincare recommendation engine.
Result:
45,000+ products analyzed, 100K+ happy users, and a leading ingredient transparency solution.
Our expertise across industries
At Onix, we turn ideas into results. Through custom IT services and software project rescue services, we help businesses innovate, solve challenges, and grow, no matter what you’re building.
Travel & tourism
Our travel software solutions make the traveler experience seamless, ensuring businesses stay efficient and customers stay delighted.

Healthcare
We develop solutions that enhance patient care, streamline operations, and inform clinical decisions.

Fitness & sports
We know what modern users expect. Our apps and platforms help users stay active, improve their performance, and retain them daily.

Edtech
We help organizations of all sizes enhance learning, reduce manual work, and deliver a goal-oriented educational experience.

Online scheduling & booking
We build intelligent booking and scheduling systems that streamline operations, minimize no-shows, and provide seamless user experiences for service providers and their clients.

Fintech
We develop robust fintech software that prioritizes security, performance, and seamless user experiences for payments, analytics, and compliance.


Testimonials
Clients rely on us as an IT services & web development company to build new solutions and fix what others couldn’t.
"Post-refactoring, the codebase became maintainable and scalable, leading to a 30% reduction in bug reports related to legacy code problems. Through proactive bug fixing, the number of critical post-launch issues was reduced by 35%, resulting in a smooth UX and fewer support requests."
Ryan Rosenbaum
CPO, Phlex Sports Co
"They took the time to make suggestions to improve my project. They are very talented and worked quickly to achieve my desired outcomes. When requesting further changes, they were very helpful and took on board what I was saying."
James Harrison
CEO, Blueberry Bagel Publishing
"The outcome of the project exceeded our expectations. Their attention to detail, deep understanding of our objectives, and innovative approach resulted in a top-notch learning management system that will serve our needs and those of our HCP learners exceptionally well."
Sandy Breslow
Owner and Investor, NexusMedX
"Onix has successfully reduced the number of issues in Crashlytics and improved the app's stability, earning positive feedback from end customers. The level of communication felt as though they were an extension of our team."
Peter Altholz
CEO, Bar Crawl Nation LLC
Partner with Onix in the way that works best for you
As a custom IT solutions and services company, we offer flexible options for collaboration, allowing you to select the approach that best suits your goals and timeline.
Staff augmentation
Need extra hands? Add Onix specialists to your existing team to fill skill gaps and boost delivery speed.

Dedicated team
Get a remote team focused solely on your project – hand-picked for your business goals and ready to manage everything from start to finish.

Time & materials
Perfect for evolving projects. Pay only for the actual hours and resources used, while maintaining flexibility and control.

Fixed price
Have clear requirements? We’ll provide a precise quote, timeline, and deliver your project on budget – no surprises.

Full-process development
From idea to launch, our software development service experts cover the full cycle: design, development, QA, and support – all under one roof.


Stuck in development chaos? Or just need a reliable start? Our experts are ready to jump in.
Blog




















