How Northsea filters bad traffic before it distorts insights with Fingerprint
Fraud Prevention
Market Research
10
EMEA
Northsea is a research platform built for strategy consultants, private equity firms, and in-house strategy teams. Founded by former Bain consultants, the company helps teams launch primary research studies in minutes instead of days, while delivering higher-quality, more reliable insights.
Northsea is used for a wide range of primary research, from large-scale consumer surveys to targeted studies with B2B decision-makers (e.g., CFOs, CTOs) and medical professionals. Across all use cases, data quality is non-negotiable: Their customers make high-stakes business and investment decisions based on these insights.
For Northsea, data quality is foundational. For every respondent, they must answer three questions: is the respondent a real human, are they speaking from authentic experience, and are the insights credible and decision-grade?
Modern fraud threatens all three.
Traditional defenses such as logic traps, attention checks, and basic validation are no longer sufficient. Across the primary research industry, increasingly sophisticated abuse has become common:
For Northsea, accepting any level of compromised data is not an option. Even small volumes of fraudulent responses can undermine an entire study.
Northsea needed a scalable way to verify real, unique respondents without adding friction for legitimate users.
Even a few bots can destroy confidence in a study. With Fingerprint, we’re able to deliver what we believe is the highest data quality in the market and that trust is fundamental to our growth.
Northsea evaluated building an in-house solution and experimenting with open-source fingerprinting libraries. But both options fell short.
Open-source tools provided a useful starting point, but Northsea required higher accuracy and reliability to operate confidently at scale. Building internally was also considered, but would have diverted valuable engineering time from their core product.
Fingerprint stood out for two reasons:
1. Accuracy at scale, without engineering overhead
Fingerprint’s device intelligence delivered a higher level of reliability than homegrown or open-source approaches, while avoiding the need for Northsea to maintain its own detection infrastructure.
As Geart van Dam, Co-Founder of Northsea, explained:
“We could probably have built something ourselves, but that would mean spending time not developing the core of our platform. For us, quality was more important than cost.”
2. Transparency and explainability
Rather than relying on a black-box score, Fingerprint provides Smart Signals and a combined Suspect Score that explain why a respondent is flagged, including indicators such as VPN usage, device tampering, virtual machines, or inconsistent geolocation.
This transparency allows Northsea to:
Fingerprint plays a critical role within Northsea’s quality architecture, complementing in-interview behavioral analysis to ensure only authentic, decision-grade responses are delivered. It evaluates 100% of incoming respondents, before a survey or interview begins.
Based on Fingerprint’s Suspect Score and underlying Smart Signals, Northsea takes different actions:
By performing these checks up front, Northsea avoids wasting time for both respondents and clients, while minimizing friction for legitimate experts.
Since implementing Fingerprint, Northsea has seen clear, measurable impact:
Fingerprint screens 100% of incoming traffic before it enters a study. Across the survey industry, studies without these protections often see up to 35% of incoming traffic that is fraudulent, duplicated, or otherwise high-risk. Northsea detects and excludes these respondents before they reach the research.
While the impact on growth is indirect, the effect on trust is immediate.
As Northsea continues to scale, building and maintaining trust and credibility remains a top priority. Fingerprint has become a foundational layer of their platform, ensuring every insight is backed by real, verified human input.
By combining device intelligence with their own domain expertise, Northsea is setting a new standard for speed and quality in primary research.
