Looking to connect with Chief Security Officers (CSOs) who can greenlight your cybersecurity solution?
A high-quality CSO email list can be your fastest route to pipeline. But not all lists are created equal, especially when it comes to data accuracy, compliance, and targeting the right persona.
This guide compares top CSO list providers and shows you what to look for, from intent data and GDPR compliance to credit-based pricing.
Whether launching outbound campaigns or enriching your CRM, this breakdown helps you choose a provider that delivers results, not just contacts.
| Provider | Intent Data | GDPR/CCPA Compliance | Key Differentiator | Credit-based pricing structure |
| Cognism | ✅Yes | ✅Yes | Diamond Data (phone-verified) + leading EMEA database | No |
| Lake B2B | ❌ No | ❌ No | Large industry segmentation options | Yes |
| Blue Mail Media | ❌ No | ❌ No | Global B2B lists with multilingual support | Unknown |
| BizProspex | ❌ No | ✅Yes | CRM cleaning & data mining add-ons | Yes |
| Thomsom Data | ❌ No | ❌ No | Focus on niche industries & SIC targeting | Unknown |
| DataCapitve | ❌ No | ✅Yes | Custom segmentation + ABM targeting | Yes |
| InfoCleanse | ❌ No | ✅Yes | Data appending & cleansing focus | Unknown |
| eSalesData | ❌ No | ❌ No | US-centric CSO leads with firmographics | Unknown |
Cognism is a sales intelligence platform that provides multiple options for creating targeted CSO email lists globally and supplementing them with verified cell phone numbers.
You can run company and contact searches in the Cognism web app (Sales Companion) and filter down results depending on who you want to contact (e.g. include or exclude job titles, seniority, departments, and other user details).
Take our platform for a spin and see how to build targeted lead lists with highly accurate contact data in seconds! 👇
Alternatively, you can use the Cognism Sales Companion browser extension to export leads and contacts from LinkedIn and Sales Navigator lists to your integrated CRM or sales tool (Salesforce, Outreach, etc.). It also reveals prospects’ contact details on corporate websites.
Lastly, you can use data enrichment options to refresh the existing contacts in your CRM and new ones when they enter your database.
You can also use intent data, signal data (e.g., job change), and technographics to target prospects managing security policies and procedures when they’re in the market for your solution.
*Subject to a generous fair usage policy.
Lake B2B is another CSO email list provider that extracts email addresses from publicly available sources. It also offers other marketing services to help sales and marketing teams reach their target audience.
With this provider, users can choose between buying a pre-packaged CSO mailing list or having their list customised by the Blue Mail Media team according to their preferences.
It collects data from corporate registers, re-seller programmes, company newsletters, business magazines, and more.
This email data provider obtains its data by public data scraping and offers instant CSO email list downloads. It may include CSO’s personal and company email addresses.
Additionally, it provides information about prospects’ technology usage, keywords on their pages, ad spend, and direct contact information.
Data scraping tools aren’t ideal, especially when contacting Chief Security Officers, as scraping websites for email addresses without permission may conflict with compliance laws in some regions.
Learn more about these restrictions via our blog on whether buying email lists is worth it.
Thomson Data is a US-based company that has recently joined Datarade. It offers pre-built and customised email lists of Chief Security Officers, security personnel, and security consultants. They cover a range of industries, from geospatial to financial to commerce.
It sources its CSO email database from business directories, conferences, Yellow Pages, government records, and more.
DataCaptive offers custom and ready-made CSO email lists. It collects data from various sources, such as directories, business conferences, seminars, webinars, podcasts, etc.
You can place an order with your requirements, and a sales rep will get back to you with a customised CSO marketing contacts list in 2 to 5 business days.
InfoCleanse is a global CSO contact database provider. Their services include data appending, verification, cleansing, and more.
The tool offers pre-packaged and custom-made CSO mailing lists covering industries across the US, Europe, and APAC, such as Technology and healthcare.
💡 Check out where to buy email lists legally in the UK and the US.
eSalesData specialises in providing a segmented CSO email list database for easy customisation.
Like other email list providers on this list, it has a global database of Chief Security Officers – from the US, UK, Canada, Asia, the Middle East, Australia, New Zealand, and South Africa.
The best way to get a CSO email list is to choose a compliant B2B database and run the search yourself. Databases like Cognism allow you to create multiple targeted email lists of C-level executives, including CSO, CISO, cybersecurity senior managers, etc.
Here’s how to run a contact search on Sales Companion:
Each year, more companies fight for Chief Security Officers’ attention. With so many constraints on their time, they often ignore or simply miss your emails. This may explain why as many as 57% of C-level and VP buyers across industries prefer the phone call.
When calling security executives, use verified and compliant mobile data rather than direct dials to avoid gatekeepers and ensure you’re not breaking local privacy laws.
Cognism’s Diamond Data® is a premium cell phone numbers dataset. We manually check each mobile number to ensure you connect with the right prospect. With Diamond Data®, you can:
Connect with 87% of your list.
We also clean the numbers from global DNC lists from the following countries: the USA, Canada, Australia, Germany, France, Spain, Ireland, Belgium, Croatia, Portugal, Sweden, and TPS/CTPS in the UK.
You can enhance CSO email lists with other types of B2B data that make your outreach all the more actionable. You’ll know not only where to send the email but also how to write one that piques their interest and when to send it for the highest chance of a response.
Enhance your email list with the following:
Yes, but only if it complies with data privacy laws like GDPR (for EU contacts), CCPA (California), and CAN-SPAM (US). Ensure your provider uses compliant data collection methods.
Check if they use a lawful basis for processing data (e.g. legitimate interest or consent), and whether they can provide Data Processing Agreements and audit trails.
Most vendors provide a Privacy Policy on their site. You can typically find it in the page footer. The more transparent the email provider, the more you’ll see them mention their compliance status.
For example, Cognism links to our main nav bar. Read all about our dedication to compliance.
Industry standard ranges from 85% to 95%. Rates above 95% (as claimed by Cognism) are exceptional and should ideally be supported by third-party verification.
Yes, tools like Bombora and 6sense track online behaviour that correlates with buying interest, allowing you to target CSOs actively researching solutions.
P.S. Cognism partners with Bombora for compliant intent data.
Why settle for generic CSO lists when Cognism delivers verified, compliant, and intent-rich CSO contacts?
With unmatched data accuracy, GDPR and CCPA alignment, and exclusive Diamond Data™ technology, Cognism ensures you reach the right decision-makers faster.
If you’re serious about pipeline and want a CSO email list that fuels real results, Cognism is the clear choice.
Click the button to book your demo today 👇