What is Vainu and what does Vainu do?
Vainu develops a data platform that delivers extensive, real‑time company and contact information aimed at enhancing B2B prospecting and CRM data processes. The service provides structured data such as firmographics, technographics, financials, and trigger events—for example, leadership changes or technology usage updates. Users can access this data via CRM integrations, API, or exports to tools like Excel, enabling streamlined prospecting, account research, and CRM enrichment.
The platform targets sales, marketing, and operations teams within B2B companies—especially those focusing on Nordic and broader European markets. It serves clients across Finland, Sweden, Norway, and Denmark, with expanding coverage into wider Europe. Customers interact with Vainu’s platform through integrations into their existing systems (e.g. Salesforce, HubSpot, or Pipedrive), or through direct API or export workflows, receiving timely company insights and alerts to inform outreach and data maintenance.
Trustmary Score
Vainu Trustmary Score is 77/100. It is based on 273 reviews across 2 review platforms (Trustmary and Google) and 53 analyzed customer feedback. The overall score also considers the volume and freshness of reviews and feedback in addition to customer satisfaction.
How Trustmary Score is calculated
Trustmary Score is an overall assessment of a company's customer experience on a scale of 0–100. It is calculated by combining data from multiple reliable sources through three main components:
SATISFACTION
Vainu measures customer satisfaction using NPS. Of the customer feedback, 68.6% is positive, 26.3% neutral and 5.1% negative.
VOLUME
Vainu has received a total of 315 ratings: 273 public reviews (Trustmary + external sources like Google and Facebook) and 53 private feedback (collected via Trustmary, not published). A review and feedback from the same form response are counted once. The total provides a solid basis for analyzing customer satisfaction.
FRESHNESS
Vainu has been actively receiving reviews and feedback in recent months. Recent feedback and reviews are weighted more in the Trustmary Score than older ones, so the indicator best reflects how Vainu has performed recently.
What customers say
Filtering capabilities and database updates have enabled users to build target lists within minutes and track mergers, acquisitions, and leadership transitions for timely outreach, while Pipedrive, Slack, and HubSpot integrations have pushed data directly into CRM systems and eliminated manual entry. A handful of observations noted discrepancies between sales expectations and delivered features, and page load times have slowed when working with large result sets.
Key Trends
Prospecting and list-building capabilities have remained the most consistently referenced use case throughout the entire review period from 2017 to 2026, appearing in roughly 65% of all responses.
Interface and usability observations have increased in recent years, rising from 40% of responses in the 2017–2020 cohort to approximately 55% in feedback collected between 2021 and 2023.
CRM integration and data accuracy discussions have grown more prominent in the past 24 months, mentioned in around 35% of 2022–2026 responses compared to 20% in earlier years.
Where Vainu excels
5 recurring strengths
Where Vainu can improve
In January 2025, one user reported that delivered capabilities differed significantly from sales representations and requested more transparent selling practices.
Page load times have slowed when working with large result sets of approximately 3,000 companies, and users have been unable to customize the order of data fields or jump directly to the last page in pagination controls.
In May 2026, one reviewer noted that summaries generated from public tenders included only the headline and were missing the actual content.
Individual observations about contract cancellation difficulty and a requirement to notify two months before the expiration date date from 2020, with no similar mentions in recent feedback.
How Vainu collects feedback
Vainu collects customer feedback and reviews automatically on Trustmary, Google, G2 and Capterra. Feedback and reviews are collected after onboarding and during service. Customers are reached via email. The primary customer satisfaction metric is NPS.
Automatic feedback
Automatic reviews
Email surveys
NPS surveys
After onboarding, During service
Trustmary, Google, G2, Capterra
Recent reviews
Customers have reviewed Vainu a total of 273 times in 4 different sources. 98 % of reviewers have given 4 or 5 stars — customers are clearly satisfied.
Honestly I enjoy using Vainu, espeically signals are great! thank you!
Valco is excited to start working with Vainu. Better data, less guessing, and more relevant sales work. Also, every good lead helps fund our long-term Death Star project, which, according to our strategy department, remains crucial for the future of humanity.
We’re excited to start working with Vainu. Better company data helps us focus on the right customers at the right time, which is good for B2B sales and, naturally, for funding our long-term Death Star project.
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