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We Provide Full Scope Mobile Development Expertise

Onix is a full-cycle software development company that builds well-suited solutions to drive company outcomes for startups, small and medium-sized businesses.

1100+  Successfully delivered projects
23+  Years of experience in software development
55+ Countries represented by clients
370+ Talented multi‑dimensional experts

  • Min project size
    $10,000+
  • Hourly rate
    $25 - $49 / hr
  • Employees
    250 - 999
  • Locations
    Kropyvnytskyi, Ukraine
  • Year founded
    Founded 2000
  • Languages
  • Timezones

2 Languages that we service

  • English
  • Ukrainian

38 Timezones that we service

ACT
Australia Central Time (ACT)
AGT
Argentina Standard Time (AGT)
AKST
Alaska Standard Time (AKST)
ART
(Arabic) Egypt Standard Time (ART)
AST
Arabia Standard Time (AST)
AET
Australia Eastern Time (AET)
BST
Bangladesh Standard Time (BST)
BET
Brazil Eastern Time (BET)
CAT
Central African Time (CAT)
CET
Central European Time (CET)
CNT
Canada Newfoundland Time (CNT)
COT
Colombia Time (COT)
CST
Central Standard Time (CST)
CTT
China Taiwan Time (CTT)
EAT
Eastern African Time (EAT)
EST
Eastern Standard Time (EST)
EET
Eastern European Time (EET)
GMT
Greenwich Mean Time (GMT)
GST
Gulf Standard Time (GST)
HST
Hawaii Standard Time (HST)
IDT
Israel Daylight Time (IDT)
IET
Indiana Eastern Standard Time (IET)
IST
India Standard Time (IST)
JST
Japan Standard Time (JST)
MET
Middle East Time (MET)
MIT
Midway Islands Time (MIT)
MST
Mountain Standard Time (MST)
NET
Near East Time (NET)
NST
New Zealand Standard Time (NST)
PNT
Phoenix Standard Time (PNT)
PRT
Puerto Rico and US Virgin Islands Time (PRT)
PST
Pacific Standard Time (PST)
PLT
Pakistan Lahore Time (PLT)
SAST
South African Standard Time (SAST)
SGT
Singapore Standard Time (SGT)
SST
Solomon Standard Time (SST)
UTC
Universal Coordinated Time (UTC)
VST
Vietnam Standard Time (VST)

3 Locations

  • Kropyvnytskyi , Ukraine
  • Poznań , Poland
  • Bratislava , Slovakia

No have been added yet...

    Pricing Snapshot

    Min. project size $10,000+
    Avg. hourly rate $25 - $49 /hr
    Rating for cost 4.8 /5

    What Clients Have Said

    Onix-Systems is perceived as offering good value for cost, with several clients noting that their pricing fits budgets while delivering quality work. Specific project costs range from $5,000 to over $192,000, indicating flexibility for different client sizes and needs.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    $10,000 - $49,999 based on 39 reviews
    < $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

    Select a service to see pricing information

    Onix-Systems Review Insights

    Overall Review Rating

    4.8
    • Quality 4.8
    • Schedule 4.8
    • Cost 4.8
    • Willing to Refer 4.8

    Top Mentions

    Review Highlights

    • Commitment to Quality and Client Success

      Onix-Systems is committed to delivering high-quality products and ensuring client success. Their dedication to maintaining high standards is consistently recognized by their clients.

    • Strong Adaptability to Client Needs

      Onix-Systems is noted for their adaptability, often tailoring their approach to meet specific client needs and project requirements. This flexibility is a key factor in their successful client engagements.

    • Strong Client Relationships

      Clients often mention feeling like partners rather than just customers, thanks to Onix-Systems' focus on relationship-building. Their personal approach and dedication to client success are frequently praised.

    • Communication Challenges

      While many clients appreciate Onix-Systems' communication, a few noted language barriers and occasional miscommunications. Improving English proficiency, especially among developers, could enhance client interactions.

    • Strong Client Recommendations

      Clients frequently recommend Onix-Systems for their expertise, reliability, and the value they provide. Their ability to integrate into client teams and deliver high-quality work is often highlighted.

    • Positive Client Feedback on Deliverables

      Onix-Systems consistently receives positive feedback on their deliverables, with clients noting the quality and functionality of the final products. Their work often exceeds client expectations.

    Onix-Systems Reviews

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    Services
    Project cost

    UX/UI Design for VR App Dev Company

    • AR/VR Development Application Testing UX/UI Design
    • $10,000 to $49,999
    • Feb. - Apr. 2025
    5.0
    Quality
    5.0
    Schedule
    4.5
    Cost
    5.0
    Willing to Refer
    5.0

    "Everything was always on time and within budget with consistently exceptional communication."

    May 8, 2025
    Founder & Director, Livelens
    James McAllister
    Verified
    • Arts, entertainment & music
    • United Kingdom
    • 1-10 Employees
    • Online Review
    • Verified

    Onix-Systems developed a virtual reality app's MVP. The team worked on the app's user flow, UI, user journey, onboarding, event booking, and more.

    Custom Software Dev for Stock Market Solutions Company

    • API Development Custom Software Development DevOps Managed Services
    • $200,000 to $999,999
    • Nov. 2023 - Ongoing
    1.0
    Quality
    0.5
    Schedule
    0.5
    Cost
    2.5
    Willing to Refer
    0.5

    "We would strongly caution others against engaging with this firm based on our experience."

    Apr 24, 2025
    Co-Founder, Stock Market Solutions Company
    Anonymous
    Verified
    • Other industries
    • Hollywood, Florida
    • 11-50 Employees
    • Online Review
    • Verified

    Onix-Systems has been hired by a software company to develop a feature-rich, real-time stock market solution. The team has been tasked with delivering a stable, scalable backend and stable frontend code.

    Branding & UX/UI Design for Sneaker Marketplace

    • Branding UX/UI Design
    • Less than $10,000
    • Nov. 2024 - Jan. 2025
    4.5
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "They are very professional, deliver work to a high standard, and are of great value for money."

    Mar 26, 2025
    Executive, The Sole Supplier
    Anonymous
    Verified
    • Media
    • United Kingdom
    • 11-50 Employees
    • Online Review
    • Verified

    Onix-Systems provided UI/UX design and branding services for a sneaker marketplace. The team designed a user flow and wireframes for the client's product and created brand guidelines and identity.

    Web Development for Flight Deal Source Co

    • Web Development
    • Confidential
    • Feb. 2024 - Feb. 2025
    4.0
    Quality
    4.0
    Schedule
    4.0
    Cost
    4.0
    Willing to Refer
    4.0

    "They consistently address challenges with efficiency and professionalism."

    Mar 25, 2025
    Founder, Secret Flights Ltd
    Yaneev Lanis
    Verified
    • Other industries
    • Tel Aviv, Israel
    • 1-10 Employees
    • Online Review
    • Verified

    Onix-Systems developed a WordPress frontend for a flight deal source company. The team updated and modified plug-ins, themes, and integrations, fixed bugs, and performed maintenance.

    DevOps Services for Software Company

    • Custom Software Development DevOps Managed Services
    • Confidential
    • May 2014 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They have an amazing culture of continuous improvement and an obsession with customer success!"

    Mar 12, 2025
    Head of Product, Software Company
    Anonymous
    Verified
    • Other industries
    • San Francisco, California
    • 51-200 Employees
    • Online Review
    • Verified

    Onix-Systems provides DevOps services for a software company. The team handles CI/CD, cloud infrastructure, and app development, primarily in Python. They manage the client's DevOps function and organization.

    Website Development for Design Agency

    • Application Testing Custom Software Development Web Development
    • Less than $10,000
    • Nov. - Dec. 2024
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "Onix-Systems’ technical expertise and commitment to delivering a high-quality product were truly impressive."

    Dec 19, 2024
    Project Manager, Gapsy Studio
    Anonymous
    Verified
    • Other industries
    • Ukraine
    • 11-50 Employees
    • Online Review
    • Verified

    Onix-Systems developed a website for a creative design agency. The team created a responsive site with a CMS, integrated custom animations, and optimized the site's performance to ensure fast loading times.

    VR Development for Creative Agency

    • AR/VR Development
    • Confidential
    • Sep. - Nov. 2024
    5.0
    Quality
    5.0
    Schedule
    4.5
    Cost
    5.0
    Willing to Refer
    5.0

    "Onix-Systems was able to touch on the essence of our question and interpret our needs well."

    Nov 26, 2024
    Owner, Director & Photographer, First on Mars
    Herman Poppelaars
    Verified
    • Other industries
    • Amsterdam, Netherlands
    • 1-10 Employees
    • Phone Interview
    • Verified

    Onix-Systems provided VR development services for a creative agency's end client's product presentation. The team was responsible for designing 60 seconds of 360-degree animations for a two-minute video.

    Web & Mobile App Dev for Event Marketing & Production Firm

    • Mobile App Development UX/UI Design Web Development
    • $50,000 to $199,999
    • Feb. 2024 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "The level of communication felt as though they were an extension of our team."

    Nov 19, 2024
    CEO, Bar Crawl Nation LLC
    Peter Altholz
    Verified
    • Arts, entertainment & music
    • Boca Raton, Florida
    • 1-10 Employees
    • Online Review
    • Verified

    Onix-Systems provides website and mobile app development for iOS and Android for an event marketing and production firm. The team has fixed bugs, added new features, and improved the UI/UX design.

    UX/UI Design for Software

    • Custom Software Development UX/UI Design Web Development
    • $50,000 to $199,999
    • June 2021 - Sep. 2023
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "Onix-Systems is highly professional and focused on efficiently delivering a high-quality product."

    Aug 13, 2024
    Executive, 4D Insight
    Anonymous
    Verified
    • Other industries
    • United Kingdom
    • 1-10 Employees
    • Online Review
    • Verified

    Onix-Systems developed and designed an immersive training platform for a software company. The team was also responsible for setting up the platform server and providing hosting services. 

    Showing 1-10 of 49 Reviews

    Our Story

    Onix was founded in 2000 by three technology enthusiasts: Roman Serebryakov, Edward Prykhodkin, and Dmitry Durach.

    Onix has always focused on building honest, transparent relationships with customers. We prioritize the evolving, unique customer nee

    The executives’ goal is to secure Onix’s membership in the global business community and our status as a reliable and profitable partner. The executive team guides Onix with a focus on consistent excellent customer experience and continuous education.

    What Sets Us Apart

    Openness

    Transparent, client-first partnership. We keep the process open, guard your IP, adapt to evolving needs, and work comfortably across time zones—so delivery stays clear, flexible, and aligned from discovery to release.

    Support

    Learning-led excellence since 2000. From 8 engineers to 370+ specialists, we’ve grown profitably and steadily. We invest in continuous education and emerging tech, so your product benefits from proven craft and fresh ideas.

    Uniqueness

    Values you can feel. We embrace new ideas, appreciate creativity, respect every voice, and support growth. That culture—plus global experience—creates teams that care, stay reliable, and build long-term results with you.

    Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

    Learn More
    Verified Client Reviews
    43
    Overall Review Rating
    4.8
    Source
    Clutch
    Last Updated
    September 23, 2025

    Business Entity

    Business Entity Name Onix-Systems Limited Liability Company
    Source Youcontrol
    Jurisdiction of Formation Ukraine
    Date of Formation December 25, 2001
    Status Active
    Last Updated March 31, 2022
    ID 31774976

    Credit Report Results

    Clutch was unable to obtain a credit report for this company. However, Clutch performed additional verification on this company and confirmed that there are no negative legal filings or large outstanding debts. This company has also received 3 or more verified reviews on our platform.

    Learn More About The Clutch Verification Process

    Locations (3)

    Tarasa Karpy St, 76 KropyvnytskyiUkraine 25000

    301 - 400

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    Tatiana Kermach

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