Cortexia (cortexiaco.com) has a 5.0 out of 5 rating on OK.one, based on 47 user reviews collected here. It is listed under Business Services and its reputation is excellent. Praise is nearly unanimous, with 100% rating it 4 stars or higher; 31 of them were added in the last 12 months. Last updated 2026-08-10.
The initial contact and screening was done through LinkedIn, it was extremely simple and very straightforward. My first call came about a week later; scheduling was simple, communication was great before and after, the call itself went great, and payment was received within 30 minutes of the call. This was a great experience and I’m looking forward to working with this organization again in the future.
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Asaf Kraus · 1 review · Experienced 2026-05-05 ·
★★★★★
Great and professional experience
I was asked to participate in conversation through Musa and it was super easy and pleasant. The whole short process was professional and reliable.
Good Luck !
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David R · 1 review · Experienced 2026-05-15 ·
★★★★★
Great Experience! Highly Recommended
I was contacted via email through LinkedIn. The process was very straightforward; I answered some screening questions and once I was approved, they provided a list of times that their client was available for the call. They were very flexible, and it was a great experience to share some of what I do professionally and get compensated for it! I would 100% participate in another study with them!
Musa was very helpful the entire process, outreach, vetting - the client and consultant match was beneficial.
He's very responsive to your messaging and prompt. 5 stars!
I recommend working with Cortexia. 4 stars only because payment processing took a little longer than anticipated. [would have given 4.5, but this rating system is meh]
Most importantly, Cortexia is a legitimate consulting service that you can trust with your expertise.
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Kevin Q · 1 review · Experienced 2026-05-01 ·
★★★★★
Working with Cortexia
Working with Cortexia was an outstanding experience and looking forward to future opportunities. The team asked insightful questions for their research.
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nidhi behl · 1 review · Experienced 2026-05-21 ·
★★★★★
Beautiful Surprise by Cortexia
It happened, like a beautiful surprise in Your LinkedIn inbox. That you are selected for the interview for your expertise. Its a new concept probably where industry experts are called and they are paid, even to share their experience. A legit and real organization. Highly recommended!
I recently had the opportunity to participate in a survey focused on evaluating a website design intended to help pinpoint specific materials for production and provide valuable technical information to better determine their applications and use cases. The experience was very professional and well organized from start to finish.
I was contacted by Cortexia and worked directly with their representative, Musa, who was extremely informative and clear about what was expected from me throughout the process. He explained the goals of the evaluation, how the tools were being tested, and how my feedback would contribute to the client’s development efforts.
The survey itself was straightforward and engaging, allowing me to provide practical insight based on usability, functionality, and how effectively the platform communicated production material information. It was great to know that my input and feedback were considered valuable and useful toward continuing the development and improvement of the platform.
Overall, it was a positive experience collaborating with a team that genuinely values user insight and applies it constructively to refine their tools and technology.
Excellent approach towards research with existing ecosystem players with a very ethical framework of payouts
Highly recommended
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Christen · 2 reviews · Experienced 2026-04-03 ·
★★★★★
I participated in a paid study with…
I participated in a paid study with Cortexa and it was not only an enjoyable experience, but I was happy to provide insight into a topic for which I had advanced knowledge.
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Tobias · 3 reviews · Experienced 2026-03-26 ·
★★★★★
Solid and trustworthy experience
Solid and trustworthy experience - I provided insights into lead generation using diverse marketing channels. Communication with Cortexia was seamless and highly professional.
The professionalism was evident right away. The pre qual was on target and well thought through. This quickly impressed me that Cortexia was 110% legitimate.
The actual consultation was pre communicate with the proper amount for pre information for me and perfect for the client. ( to obtain optimum results). The client was a Fortune 100 company who presented cutting edge technology that was 90% ready for launch. My feedback and mutual dialog gave them valuable insights and a few key Ahhh moments that excited everyone. It was a pleasure for all parties involved and everybody made the world a better place that day!
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kglavan · 4 reviews · Experienced 2025-11-10 ·
★★★★★
Great communication and project work…
Great communication and the projects have been positioned well with my background.
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Matt Runyan · 2 reviews · Experienced 2025-11-18 ·
★★★★★
a great group to deal with and pushing…
a great group to deal with and pushing for improvements to areas that others just ignore. a solid group of people working to solve modern issues. keep up the good work
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Bob Strand · 1 review · Experienced 2025-12-09 ·
★★★★★
Great company trying to innovate in an…
Great company trying to innovate in an area of need. Interview was straight forward. Appreciate the added side $. Would do another again.
Great to work with! Musa is very attentive and helpful at all times. He is very professional and easy to work with.
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Arjun Gupta · 1 review · Experienced 2025-10-28 ·
★★★★★
I had an excellent experience…
I had an excellent experience interacting with Cortexia. Their team reached out to me for technical insights on an engineering-focused application they’re developing, and I was genuinely impressed by their professionalism, clarity of vision, and commitment to solving real problems for engineers.
The exploratory discussion they arranged was thoughtful, well-structured, and showed that they truly value user input while building their product. It’s rare to see a company so invested in understanding the needs of their audience before scaling their solution.
If Cortexia continues operating with this level of transparency, curiosity, and user-centered thinking, they’re well on their way to creating something game-changing. Highly recommend working with them.
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VLAD ST · 2 reviews · Experienced 2025-10-15 ·
★★★★★
I've had a great experience with Cortexia
I've had a great experience with Cortexia market survey team.
They were considerate in approach, kept the promised deadlines, were genuinely interested to go in-depth in their study.
I would highly recommend their services to any interested company.
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Kim M · 1 review · Experienced 2025-10-23 ·
★★★★★
Easy to work with
Very easy to work with and found a solution when everything didn’t go as planned
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Yve · 1 review · Experienced 2025-09-17 ·
★★★★★
Excellent experience and prompt payment
I was contacted on LinkedIn by a Cortexia Rep and asked to participate in a study. With all the scammers out there, I approached with caution. The company is newer but legit and the Rep had a complete LinkedIn profile and was answering my questions promptly. After going through the screening questions, I had the client call which was a wonderful experience. I was able to assist with my insight and feedback. Payment after the call was super quick. I would participate again and can only recommend the company.
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Scott Cameron · 2 reviews · Experienced 2025-09-10 ·
★★★★★
Excellent experience with Cortexia
Excellent experience with Cortexia. Well coordinated, fast payment. Looking forward to working with them again!