Generally, I find Cognism to be a good product; despite the sales pitch, their data is *not* flawless and sometimes, like other platforms, it's outdated - there is no getting around that because of... See more
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Company details
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Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster and close more deals. Headquartered in London with global offices, Cognism’s contact data and contextual signals are trusted by thousands of revenue teams to eliminate the guesswork from prospecting.
Contact info
Floor 11 North, The Shard 32 London Bridge St, SE1 9QU, London, United Kingdom
- [email protected]
- www.cognism.com
Hasn’t replied to negative reviews
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Cognism getting people's details without consent
I've been repeatedly cold called by companies trying to sell something to me. I asked them how they got my number and they told me it was from Cognism which took it from LinkedIn. When I asked LinkedIn what my number is used for, this use wasn't mentioned in their policy. Something just isn't right here...
Cognism has been a game changer
Cognism has been a game changer for my LATAM outbound.
The contact data is reliable, the platform is easy to use, and it saves me a ton of time compared to piecing lists together from multiple sources. I especially love how quickly I can find the right people at the right companies and move straight into outreach without spending hours validating basics.
If you do high volume prospecting in LATAM and need strong data coverage, I genuinely recommend it.
I had a great experience using Cognism
I had a great experience using Cognism. It helps me manage and track my client leads, making me use my time more efficiently.
Didn't give consent for my data to be used
I received a call from a company on my private TPS-registered mobile number from someone wanting to sell me services related to my job. They told me that they got my number from Cognism. This is the 2nd call I've had of this nature. How did that happen? I never consented to give my data to Cognism - especially not my personal mobile number. In their LinkedIn header they make reference to 'compliant' and 'GDPR Compliance Software' - it seems that there's been a breach. I've made a report to the ICO.
Integrations and UI
The company makes integrations with CRMs seamless, and the UI is really nice
As someone in the fintech industry for…
As someone in the fintech industry for some time, cognism provides me clean and accurate data for business development activities- ultimately saving time, money and energy. It is also compliant to local UK and EU GDPR regulations.
Very compliant and pretty easy to…
Very compliant and pretty easy to integrate with SF
Cognism has been a very reliable tool…
Cognism has been a very reliable tool for our outbound efforts. The data quality is strong, especially for EMEA contacts, and the platform is easy to use. GDPR compliance is a big advantage for European teams, and customer support has been responsive whenever needed. Overall, a solid solution for B2B prospecting.
A Time-Saving Tool for Effective Prospecting
As a Business Development Representative, Cognism has become an essential tool in my daily workflow. What I appreciate most about the platform is how much time it saves me when prospecting. It allows me to quickly find accurate contact details, including direct phone numbers (both personal and office lines) as well as email addresses, which significantly improves my outreach efficiency.
One of Cognism’s strongest features is its seamless integration with LinkedIn. I can access prospect information directly from LinkedIn without even opening the Cognism platform, which makes the experience extremely smooth and convenient during my prospecting sessions.
Additionally, the platform makes it easy to navigate within a company and identify other relevant prospects, helping me expand my outreach beyond a single contact. Overall, Cognism is a reliable and time-saving solution that strongly supports my prospecting and business development efforts.
Clean UI and solid EU data coverage
Clean UI and solid EU data coverage, but enrichment quality has been hit-or-miss lately, too many bounced emails for the price point.
Good B2B data quality, strong tool with room to improve
Cognism is a practical and well-structured sales intelligence platform that supports daily B2B prospecting effectively. The company data and decision-maker insights are largely reliable and help speed up research and outreach preparation. The browser extension is intuitive and fits nicely into common sales workflows.
There are, however, some minor drawbacks. From time to time, contact details are outdated, and the extension performance could be smoother. Additionally, more granular control over data exports and filtering would improve usability for advanced users.
Overall, Cognism is a valuable tool for sales and business development teams. A few improvements in data consistency and performance would easily justify a full 5-star rating.
platform is easy to use
platform is easy to use, the data is reliable, and it really helped streamline our prospecting process. It saved us time and made outreach more effective.
Shit data
Shit data - terrible platform - I was miss sold by a sales person and it’s been terrible for my business. I hope that someone sees this and doesn’t buy
Avoid them
Cognism appears to sell contact data that is inaccurate. My phone number was incorrectly associated to a person unknown to me, which led to a high volume of unsolicited calls. Based on this experience, I do not trust their data quality or their handling of complaints.
Avoid them!
Easy connect
The integration with salesloft is extremely helpful to schedule and create a list of leads that I would love to connect with. Very reliable data so far
Cognism do not respond to data requests - they sell false data about me.
Cognism have acquired or created false data about me by associating my email address with somebody else who has a finance management responsibility, hence I'm getting deluged with finance related emails from companies that have bought contact details off them. I have made two Subject Access Requests to them on 04/07/2025 and 28/10/2025 but have had no response.
I have tried to use their forms to resolve this but they require Business and LinkedIn details but I have none of those as I am not a business and do not have a LinkedIn account, and without those I cannot submit the forms.
Data Selling
I have just found out they have been selling my data. I am getting daily calls. Also the online form is not working to submit a request to have my data removed.
Great product and usability
Great product! I use it every day for my job as a BDR. Been extremly helpful to get everything done and reach the right people.
Selling my personal data
Just found out you've been selling my personal phone number, which is never used for work purposes, for business to business cold calling. Inappropriate and a breach of GDPR. I dread to think where you've scraped that data from but it makes me very wary about the legitimacy and extent of the records you are selling.
Great quality of numbers and emails
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