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The Best CSO Email List On-Demand [2024]

As a contact data provider, we want to assure our customers that they can target their prospects in confidence, leaving compliance and data accuracy to us.

So, if you need a list of Chief Security Officers’ emails for efficient outreach, you’re in luck.

Cognism’s database has sufficient filtering options to find the email addresses of your target prospects and supplement them with their accurate mobile numbers and intent buying signals.

Find out how Cognism stacks up against other CSO email list providers.

1. Cognism

Cognism is a sales intelligence platform. It provides multiple options to create targeted CSO email lists globally and supplement them with verified cell phone numbers.

You can run company and contact searches in the Cognism web app 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 you can build targeted lead lists with highly accurate contact data in seconds! 👇

Alternatively, you can use the Cognism 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 make use of intent data, sales event triggers (i.e. job change), and technographics to target prospects managing security policies and procedures when they’re in-market for your solution.

Best features:

  • Validated European and US-based CSO email lists.
  • Advanced filtering to build lists of ideal leads. 
  • CCPA and GDPR-compliant data.
  • Buying intent data powered by Bombara.
  • Integrations with popular CRMs and sales tools.
  • B2B contact data enrichment. 
  • Phone-verified mobile numbers to connect with 87% of your list (Diamond Data®).
  • Browser extension to enrich Sales Navigator lists and LinkedIn profiles.

Choose Cognism as your new data provider. Click to book a demo.


  • The packages are seat-based.
  • Suitable for individual prospecting and bulk list building and exporting.
  • Unrestricted views and page-level exporting (up to 25 records at a time, subject to fair use).
  • Custom packages with credits for teams with operational workflows that need bulk-list building and exporting.
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Customer testimonial:

With Cognism, our email campaigns have a  95-98%  deliverability rate
Michael Sibley, Digital Marketing Specialist
email deliverability rates

💡 Try calling prospects if they ignore your emails. Check out Cognism’s CSO and CISO cold calling scripts and tips on selling to them.

2. Kaspr

Kaspr is an entry-level prospecting tool acquired by Cognism. It has a browser extension for prospecting on LinkedIn. It retrieves real-time contact information from LinkedIn profiles, groups, events, etc.

It doesn’t have a platform to build CSO email address lists, but you can later organise leads in the dashboard and automate LinkedIn workflows.

Best features:

  • Automatic enrichment workflows.
  • Works on LinkedIn, Sales Navigator, and Recruiter Lite.
  • Send automatic LinkedIn invitations and follow-ups.
  • Lead management and team collaboration functionality.


  • Free plan available.
  • The paid subscription starts at $49 per month/user.

See how Kaspr stacks up against Cognism.

Our open rates used to be between 2-6%. Now they range from 40% to 60%
Elaine Fullarton, Digital Marketing Principal
open rates increase

💡 Check out how some tech companies generate leads.

3. Lake B2B

Lake B2B is another CSO email list provider that extracts email addresses from publically available sources. It also offers other marketing services to help sales and marketing teams reach their target audience.

Best features: 

  • Basic filtering options, ie. SIC Code, NAICS Code, State.
  • Industry-specific datasets for MarTech, FinTech, Mobile gaming, etc.
  • Coverage in over 160 countries.
  • White label data platform service.


  • Available upon request.

4. Blue Mail Media

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.

Best features:

  • Filters to customise your list.
  • Contact data re-verification service. 
  • Technographic and firmographic data. 


  • Fill out a form for a custom quote. 

5. BizProspex

This email data provider obtains its data by public data scraping and offers instant CSO email list downloads. It may include CSO personal and company email addresses. 

Additionally, it provides information about prospects’ technology usage, keywords on their pages, ads spend, and direct contact information. 

Best features:

  • Data mining and appending.
  • Tech install data (focus on ERP/CRM/e-commerce/server-side software).
  • CSO email list cleaning.


  • Depends on the number of records you download.
  • The cost of 5,000 CSO records is $499.

6. Thomson Data

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.

Best features:

  • 75+ specialised segments.
  • Data cleansing and de-duplication.
  • Account profiling service.
  • Compliance with CCPA and GDPR.


  • Pricing isn’t publicly disclosed.

7. DataCaptive

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.

Best features:

  • 70+ customisable data fields.
  • CRM-friendly email list format (.xls or .csv).
  • Claims GDPR and CCPA compliance.


  • Credit-based plans start at $3,000.
  • Custom data fields and social media profiles are available in the higher-tier plans.

8. InfoCleanse

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. They cover industries across the US, Europe, and APAC, like Technology, Healthcare, etc.

Best features:

  • Data scrubbing and appending services.
  • Customisable CSO email lists based on different criteria.
  • CRM-compatible file formats.


  • Custom quotes upon request.

💡 Check out where to buy email lists legally in the UK and the US.

9. eSalesData

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.

Best features:

  • CAN-SPAM compliant and USPS verified lists.
  • Easy to download formats.
  • Compliance with local and global data privacy laws.


  • Fill out a form to get a custom quote.
We considered ZoomInfo and Lusha. After trialling all three platforms, Cognism’s US data outperformed the others. I also found the UX/UI of the platform easier to understand. Thirdly, Cognism’s Intent Data partnership with Bombora was the final piece of the jigsaw. All of these collective features ultimately led to our decision to have Cognism as our B2B data vendor of
Derayo Adetosoye, Marketing Manager

What’s the best way to get CSOs’ email lists?

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 Cognism Prospector

  1. Upload a list of accounts you want to target. You can also use company-level search filters first to identify them.
  2. Next, narrow your search to specific contact-level criteria using Cognism’s advanced filtering options.
  3. You can tailor your list to a series of concrete events by leveraging Cognism’s sales event triggers and intent data.
  4. After applying all the search criteria, select the prospects you want to add to your list.
  5. Save your search for future use and export the list to your preferred tool or CRM.

How to generate CSO email list with Cognism Prospector.

For example, Metrikus, a PropTech company, used the Cognism platform to find the best accounts that fit their ICP. They used the hiring trigger to search for organisations hiring for relevant job titles in the last six months. This gave them a clear indication that the target businesses were looking to scale.

They also tracked 25 intent topics to filter their ICP and discover companies in demand for their services. They also used Cognism’s email addresses for LinkedIn paid ads.

Choose Cognism as your new data provider. Click to book a demo.

What to do when executives ignore your emails?

Each year, more and more companies fight for Chief Security Officers’ attention. With so many constraints on their time, they often ignore or simply miss your emails. It 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 make sure you connect with the right prospect. With Diamond Data®, you can:

  • Connect with 87% of your list.

  • Increase connect rate by 3x.
  • Stay CCPA and GDPR-compliant.

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.

Get an overview of Cognism’s Diamond Data®. 👇

How to enhance CSO email list?

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:

  • Intent Data: Tracks prospects’ online behaviour so you know when they’re in the market for solutions like yours. 
  • Sales Triggers: Notifies you when certain events take place on a target account that signal the security decision-maker’s readiness to buy (job change, funding). 
  • Technographics: Tracks the technologies, software, and hardware the target company uses and informs you if your product (or competitor’s) is compatible.
  • Company Data: Refers to details like company revenue, employee count, location, industry, and more. 


How to approach Chief Security Officers?

Ran Friedman, Business Development Team Lead at Mend, distinguishes two types of CSO personas – technical-savvy and business-minded. 

If you look up a prospect’s LinkedIn, you’ll notice tech-savvy CSOs start from the bottom up in an IT department and climb the career ladder. Meanwhile, business-oriented CSOs have done more strategic planning for the organisation.

Each persona cares about different things, so you should tailor your pitch accordingly.

Business-minded CSOs care about how your solution will impact the business and ROI. Technical CSOs, on the other hand, want to know how replacing something they currently use or detecting future issues will make their team better. 

This is not to say tech-savvy CSOs don’t ask about business results, and business-oriented CSOs don’t care about tech implementation or adoption. But their mindset is different. 

So, instead of one-size-fits-all pitches, do a background check on your prospects and engage them in personalised, solution-oriented conversation.

Like what you read?

Sign up for the latest and greatest sales insights from Cognism’s VP of Global Sales, Jonathon Ilett, and Cognism’s VP of US Sales, Frida Ottosson.

You’ll get:

  • Actionable tactics and strategies that will help you achieve the next level of growth.
  • Two emails a month, less than a 2-minute read each. No spam – value only 👇

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