Reviews
Reviews of Vainu, in customers’ own words
What people wrote on G2, Google and Trustmary. Each score stays with the site it came from.
“It is the best prospecting tool there is and also excellent in preparing for customer visits.”
Scores as of 30 September 2026.
“Honestly I enjoy using Vainu, espeically signals are great! thank you!”
Spinghar Saduddin
“Good but not perfect.”
Petri Tiitto, Nordic Turf Oy
“Vainu is an integral part of our MarTech-stack and Sales Process.”
Mika K.
“Creating target lists a good feature.”
Riku Elomaa, Pohjantähti
“Good system for obtaining relevant and important information for existing and prospective customers.”
Mathias, Proclient System AB
“Easy to use platform for extracting company financial information”
Verified user, small business
“Vainu is the best prospecting tool I have used”
Marko B., small business
“I like very much of always updated database and download capabilities”
Jukka Lankolainen
“Excellent support / CSM team, fantastic tool”
Christopher S., Account Executive
“Vainu is a great platform for lead generation and prospecting”
Pernilla C., Sales and Marketing Manager
“Fast and easy platform to use. Some details are not up to date. The integrations are great which makes working faster and easier.”
Tiina Koivu
“Easy to use and provides a comprehensive information package in one place.”
Jari Kukkonen
“I have over ten years experience in CEO positions in grought companies.”
Jari K., CEO
“Functional and easy to use service, I would love to recommend”
Verified user, mid-market company
“Easy segmenting tool for B2B marketers in Finland”
Terho T., Marketing Manager
“I get a lot of information about companies with a single search”
Verified user, mid-market company
“I have been using Vainu now 6 years and recommended it my friends but also sold it to my customers”
Janne S., Head of Dynamics 365
“Definitely the best tool for anyone looking to fasten there process on prospecting companies!”
Verified user, small business
“A very good tool for receiving updates of your clients/prospects”
Saija P., Associate
“Were useful for marketing/sales prioritization on a high level”
Verified user, enterprise
“Smooth integration to our CRM, speeds up Sales processes and provides good overview of the prospect”
Verified user, mid-market company
“Vainu is a well-functioning platform that provides a quick overview of companies”
Verified user, small business
“Vainus is helpful and necessary tool for modern marketers”
Verified user, small business
“Great for boosting your CRM with relevant prospects and company data”
Verified user, small business
“Valuable business information to support any decision”
Petra N., small business
“I love vainu. pity i havent had the time in a while to use it.”
Verified user, mid-market company
“Supereasy to use system with many useful filters. The best thing is to easily integrate with your CRM”
Arimo Varis
“A great tool for finding sales opportunies and handling mass prospect lists for our booking team.”
Juuso S., small business
“The promises made have not kept. Still a good product compared to competitors.”
Verified user, small business
“Vainu works, you get new ideas for lead just by browsing through the app.”
Verified user, small business
“The best way to save time and reach the right prospect!”
Therése P., mid-market company
“Vainu requires some work for setting up but using it is a breeze”
Verified user, small business
“Vainu is our primary tool in sales to catch and evaluate new possible customers”
Jouni R., Sales Director
“I get profound information of potential customers, their business and organizational structures.”
Pertti E., small business
“Easy to find relevant prospects based on data.”
Adam W.
“Valuable prospecting tool for the recruitment industry”
Verified user, small business
“So far Vainu is the best available tool for lead/prospect validation. Most comprehensive.”
Oskari J., enterprise
“I use Vainu daily, looking for many different kind of information.”
Verified user, small business
“Vainu gives me a possibility to find prospects in a really fast way.”
mika h., Sales And Business Development
“I have found many interesting companies and their situation, new people, requirements -updating.”
Paula R., small business
“Prospecting new contacs are very easy with Vainu.io”
Verified user, small business
“I use Vainu to find potential tenants and with Vainu I can see the company info I need for leasing”
Tuula S., mid-market company
“Prospect and customer data and analysis with easy to use platform”
Verified user, mid-market company
“Well equipped prospect webcrawler with Hubspot CRM integration and awesome customer support”
Verified user, small business
“Vainu really helps to find profitable sales prospects fast”
Verified user, small business
Quotes are verbatim. Finnish and Swedish reviews are shown in English translation. G2 and Google reviews open on their own sites.