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Client reviews

What clients say after the project, in their own words.

All 7 verified reviews from Clutch and every client testimonial we have, unedited. For each one you can see the project, the team size and what changed.

Clutch

5.0★★★★★

7 verified reviews

Quality5.0
Schedule5.0
Cost5.0
Willing to refer5.0
5.0 The Manifest4.8 Techreviewer
Joannes Vermorel, CEOLokad · Paris, France
★★★★★ Clutch · Sep 2024
“They delivered a polished CRM, working fine and nice looking.”
  • “This is a team of engineers who obviously like what they are doing.”
  • “Given that the client (us) invest in giving them adequate feedback, they deliver high quality, maintainable code.”
  • “Overall, we are very pleased with this project.”
Project
In-house CRM development and UX/UI design
Period
May 2023 – Dec 2024
Team
2–5 engineers
Project size
$50,000–$199,999
Client size
51–200 employees
  • Built Lokad’s own CRM from its functional and architectural specifications.
  • Every change arrived as a pull request reviewed by Lokad’s engineers, following Lokad’s coding guidelines.
  • Delivered on time.
Our later project for Lokad →
ExecutivePeregrine Ship · Hong Kong
★★★★★ Clutch · Jul 2025
“They maintained reliability without needing constant oversight, which made the collaboration efficient.”
Project
Logistics and fulfillment platform
Period
Jun 2024 – Jul 2025
Team
2–5 engineers
Client size
11–50 employees
  • Back end for orders, inventory and fulfillment, an admin dashboard and third-party logistics API integrations.
  • Reported results: fulfillment about 35% faster and 50% less manual admin work.
  • Minimal technical issues after launch.
Read the case study →
A
Chris, OwnerAgTech company · Manson, Washington, USA
★★★★★ Clutch · Jul 2025
“What stood out most was their commitment to delivering a functional and reliable solution, no matter the challenges.”
  • “Relentless focus on customer success”
  • “Project was delivered on time and budget”
Project
Rescue and rebuild of a delayed custom solution
Period
May – Jun 2025
Team
1 engineer
Client size
1–10 employees
  • Took over a project a previous developer had delayed for more than six months.
  • Rebuilt the codebase from scratch for long-term maintainability.
  • Delivered on time and on budget.
Read the case study →
Yaroslava Vasylchenko, FounderKursyPOL · Warsaw, Poland
★★★★★ Clutch · Feb 2024
“The project team demonstrated a high level of commitment.”
  • “OSKI’s solutions are designed with clean code and attention to detail”
Project
MVP for the TutorPRO online lesson platform
Period
Jan 2023 – Jan 2024
Team
2–5 engineers
Client size
11–50 employees
  • An exercise builder for teachers using AI and OCR, plus real-time lessons with interactive exercises.
  • Delivered within the planned timeline and budget.
Read the case study →
Kirill Kiryakov, CEO & Co-FounderVMK Group UA · Zhytomyr, Ukraine
★★★★★ Clutch · Dec 2023
“Simply understanding our needs, perfect communication and transparent pricing.”
  • “They were listening about our needs and offering different solutions.”
  • “They answered for all our questions and were constantly in touch with us.”
Project
Time logging and payroll platform
Period
Since Sep 2023
Client size
11–50 employees
  • Adopted the browser-based time platform OSKI built and uses internally.
  • Team leads log time, track leave, manage projects and tasks, and calculate pay.
S
Simon H., CEOSoftware development consulting company · Carlsbad, California, USA
★★★★★ Clutch · May 2023
“They had excellent project management skills, assigning project managers and QA representatives when needed.”
  • “They’re highly knowledgeable and responsive.”
Project
Umbraco websites and Okta integrations delivered under the client’s brand
Period
Mar 2021 – May 2025
Team
2–5 engineers
Client size
11–50 employees
  • Custom Umbraco websites and third-party integrations, including Okta, for the consultancy’s own clients.
  • Quick help when a short turnaround was needed.
  • The client asked for more initiative when reading tickets and very specific acceptance criteria, which we now agree up front.
Read the case study →
Andrey Mir, CEOHS High Stake GmbH · Karlsruhe, Germany
★★★★★ Clutch · Jan 2023
“Their communication skills, speed of development, and cost were incredible.”
  • “They are a great team.”
  • “Guys proved to be experts in their field.”
Project
Business portal for a well-known company’s German division
Period
Since Jan 2021
Team
7 developers over the project
Project size
$10,000–$49,999
Client size
11–50 employees
  • Portal modules for dealers and employees, including product materials and staff training.
  • Deadlines regularly met and bugs fixed quickly.
Read the case study →
More from clients

Client testimonials

Feedback clients sent us directly. These are not verified by a third party, so we show them separately from Clutch.

The OSKI solutions team was able to deliver multiple projects successfully and are able to fix bugs in a timely manner. Their project management was excellent and deliverables were finished within the given timeline.
Andrey MirCEO, HS High Stake GmbH
Multi-project development and bug fixing
OSKI belongs to a professional team who had experience in every aspect of the job we required. The team delivered on schedule and at the level or exceeding our expectations. We were very happy to deal with Kyrylo and all members of his team. They communicated well, produced good ideas and gave good resolutions to all requirements we challenged them with.
Kim L.CEO, SalesMatrix Ltd
Website development in Umbraco
Kyrylo’s team is amazing! He has incredible attention to detail, completes tasks on time and his work doesn’t require a lot of revisions. I highly recommend him to anyone!
D
Daria P.All-in-one gamified community and courses app
Gamified community and courses app
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