Custom List Building Services

We help you reach your target audience quickly with custom B2B lists and tailored contact data

Expand your reach with custom B2B list building services

An accurate, updated contact or email list is the key to better sales and marketing. However, compiling and validating a list that fulfills specific business criteria is time-consuming as it requires customer segmentation and understanding.

SunTec Data meticulously builds a custom database based on your target criteria. We extract, compile, cleanse and verify data to create hyper-targeted lists in your preferred format. Our list building service experts find relevant attributes to give you a list of prospects who are likely to convert and generate maximum business opportunities. Our team further builds and exports the lists to Excel or CRM and incorporates them into your pipeline.

Case study

Created a verified contact list for a US-based client

The client, a US-based IT firm, struggled with reduced sales due to ineffective email campaigns.

Our email list building team gathered customers’ email addresses from credible sources and compiled an accurate list. They also verified and validated the existing database for enhanced performance.

As a result, the client’s email marketing campaigns improved and reaped 5X sales.

Experienced resource

Data Security

We understand the importance of your business data and thus adhere to strict policies to keep it secure.

  • ISO 9001:2015 certified for data quality
  • ISO 27001:2013 certified for information security
  • Stringent data security measures
  • Supervised data transfer within a secure facility
  • NDA (Non-disclosure agreement)

Client's speak

"Would definitely work with them in the near future!"

Great job done by the team! They analyzed our requirements, maintained transparent communication, and delivered tailored contact lists. Would definitely work with them in the near future!

Karl Adams, Data Manager, UK

Services covered under our custom list building services

We are an experienced list building company with exemplary skills in extracting critical information and merging it with your existing datasets for better insights and understanding of your customers and competitors. Our custom list building services include:

B2B contact mining

We extract contact emails and phone numbers from credible sources such as websites, business portals, social media channels, hard copy files, etc., to create a consolidated B2B list. We also verify and validate your existing database to remove irrelevant data, complete missing fields, and filter data points.

Email list building

Our email list building team gathers your customers’ and prospects’ email addresses and enters them into your database. We follow a multi-stage verification process to authenticate existing email data and update obsolete IDs for enhanced CTR, email delivery rate, and ROI.

LinkedIn contact discovery

LinkedIn is an incredible platform to connect with accomplished business executives and employees who are capable of becoming your target audiences. Through our LinkedIn contact discovery services, we extract critical information about potential leads and compile them into a secure database. You can leverage the data to create result-oriented campaigns and enhance your reach.

Prospect list building

To build a successful marketing campaign, you must possess a list of prospective customers. SunTec Data’s list building services deliver account and contact data to match your ideal customer profiles and buyer personas. We make sure your lists are verified and validated before delivery.

Data points covered in our list building services

We have helped numerous clients meet their custom B2B list building requirements by covering various data points and presenting a consolidated overview of each prospect.

  • Company name
  • Website url
  • Phone numbers
  • Company location
  • Branch addresses
  • Industry and sub-industry
  • Revenue
  • Contact profiles (first and last names)
  • Email IDs
  • Social media profiles (LinkedIn, Instagram, Twitter, Facebook)
  • Social media follower count (LinkedIn, Instagram, Twitter, Facebook)
  • Company size

Our B2B list building process

1. Understand the marketplace, product, and target audience

2. Build ideal customer profiles

3. Aggregate data from multiple sources

4. Compile all data into a custom list

5. Verify and validate the list

6. Share with the client in their preferred format

Why partner with SunTec Data for custom B2B list building?

List building is a consistent marketing practice that requires persistent effort over a long period. With SunTec Data as your partner, you can easily access an actionable list within a quick turnaround time.

Our list building professionals optimally blend their skills, experience, and proven techniques to create a list of qualified buyers who are interested in your product and services. Here are some additional reasons for choosing us:

Competitive pricing

We provide services at the most competitive pricing & enable cost savings on infrastructure, technology & resources.

Data security

As an ISO 27001:2013 certified company, we keep data security at the core & follow the best practices to protect your data.

Data accuracy

Our QA experts perform rigorous quality & integrity checks to identify & fix errors, ensuring 100% accuracy in our final outcomes.

Quick turnaround time

We allot a dedicated team of data professionals for your project and ensure to deliver your project in a quick turnaround time.

Flexible engagement models

Depending on your unique project requirements, you can hire our data experts on an hourly, monthly, or project basis.

Competent team

You can be assured to get highly-trained, industry-best, strong, competent, and experienced data professionals from us.

Connect with us!

To know more about our custom list building services, get in touch with our data aggregators and analysts. You can also avail a free consultation or request a free quote by briefing us on your requirements at

Custom list building services: FAQs

We assist you in building and verifying lists of all sizes. From building a database of prospects, gathering relevant B2B information, and authenticating existing lists of diverse sizes, we provide 360-degree data list building support to help you succeed.

Mining publically available online data for list building is legally acceptable. Our data aggregators build lists of qualified leads by scraping public data to ensure zero violations.

Here are the top benefits of creating a B2B contact database:
  • Quick access to accurate and updated contact information
  • Better marketing efforts and campaigns
  • Reach the right customers and prospects
  • Acquire better, qualified leads
  • Experience a boost in email delivery rate
  • Amplify your influence and reach by adding new prospects
  • Save the costs of prospect acquisition

Data fields and attributes are chosen according to the client’s requirements. Usually, a contact list includes name, company name, company size, email address, phone numbers, addresses, employee size, job title, demographics, and other critical information.

You can avail of a no-obligation free trial by sharing your sample/requirements at We collect and compile a comprehensive list of relevant data fields and attributes to help you scale our expertise before signing the project agreement. We also assure complete data confidentiality and security by signing an NDA.