Custom List Building

Companies often face the challenge of acquiring a vast amount of accurate marketing contact data to support their sales teams. However, this process can be costly, exhaustive, and time-consuming. Enter AppendSolutions® with its cutting-edge Custom List Building service, revolutionizing data acquisition for modern businesses.

Our advanced approach involves creating a new prospect database tailored to your specific target criteria. Harnessing the power of advanced AI tools and our vast database of business contacts, we streamline the process of data acquisition. By leveraging intelligent automation, we curate a new prospect database that aligns with your target criteria, enabling you to reach the right decision-makers in your desired industries. Whether it’s targeting contacts from specific companies, empowering your ABM strategies or reaching decision-makers in specific industries and regions supporting your lead generation programs, our backend engine delivers targeted results with efficiency. 

But we don’t stop there. AppendSolutions® goes the extra mile by providing verified emails for these contacts and obtaining their opt-in through permission mailers. Rest assured, we guarantee 100% deliverability for the data we provide. With our Custom List Building Process, your sales unit gains access to a robust prospect list, simplifying deal closures and empowering your sales efforts in the digital age.

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Exploiting Advantages of Custom List Building

Precise Targeting: Custom List Building allows you to target specific criteria such as industry, company size, job titles, and geographic location, ensuring your marketing efforts reach the most relevant audience.

Enhanced Lead Generation: By building a custom prospect database aligned with your target criteria, you can generate high-quality leads that have a higher likelihood of conversion.

Account-Based Marketing (ABM): Custom List Building enables you to focus on specific companies or key accounts, facilitating effective ABM strategies and personalized messaging tailored to your target accounts.

Efficiency and Cost-effectiveness: The advanced AI tools and automation used in Custom List Building streamline the data acquisition process, saving time and resources compared to manual data collection methods.

Guaranteed Deliverability: AppendSolutions guarantees 100% deliverability for the data.

Opt-in Permission: AppendSolutions obtains opt-in permissions from the contacts, ensuring compliance with data protection regulations and fostering a positive relationship with your prospects.

Simplified Deal Closures: With a robust prospect list generated through Custom List Building, your sales unit can easily identify and engage with potential customers, increasing the chances of closing deals.

Improved Sales Efforts: Custom List Building empowers your sales team by providing them with accurate and up-to-date prospect data, enabling them to focus their efforts on qualified leads and drive revenue growth.

Data Accuracy and Completeness: AppendSolutions ensures meticulous data segmentation, verification, and quality checks, resulting in accurate and complete prospect lists that you can rely on for effective marketing campaigns.

Stay Competitive: By leveraging Custom List Building, you gain a competitive edge in the market by targeting the right audience, personalizing your messages, and maximizing the impact of your marketing efforts.

Custom List Building Process

Identification of Target Criteria:

Client identifies the criteria for the desired target audience. Details containing relevant data (e.g., company name, industry, job titles) is shared by client.

Data Filtering & Segmentation

AppendSolutions uses advanced AI tools to filter and segment data based on the specified criteria. Data is refined to include the most relevant contacts for the target audience.

Data Acquisition & Validation

AppendSolutions leverages its extensive database, partner networks and other resources to acquire accurate and up-to-date contact information. Data validation processes ensure the accuracy and completeness of the acquired data.

Custom List Generation

AppendSolutions combines the refined and validated data to create a custom prospect database tailored to the client's target criteria. The database includes essential details like names, job titles, company information, and contact information.

Email and Data Append

AppendSolutions further enhances the custom prospect database with missing email addresses through Email Append services. This step involves matching and appending verified and permission-based email addresses to the existing records. If requested, additional data fields like social profile links, direct phones and firmographics like company size, industry code are appended.

Data Verification & Quality Assurance

The custom prospect database undergoes rigorous verification checks to ensure data accuracy and eliminate duplicates. Quality assurance measures are implemented to maintain high standards of data integrity.

Delivery & Access

The completed custom prospect database is securely uploaded to AppendSolutions' server. Clients are provided with unique login credentials to access and download the finalized custom prospect database.

Ongoing Support & Updates

AppendSolutions offers ongoing support to clients, addressing any queries or concerns related to the custom list. Regular updates and maintenance of the database are provided to ensure data freshness and relevance.

AppendSolutions Advantage

With a focus on delivering exceptional results, our service provides several key benefits that set us apart from the competition. A few unique selling points (USPs) that make our service a valuable asset for your marketing endeavors.


Extensive Database

With over 200 million contact records, our Master Database provides wide coverage. We utilize innovative strategies, leveraging social media, micro-sites, and co-registration techniques to enhance information profiles and optimize opt-in rates. This ensures high-quality appended data, empowering your marketing endeavors.


Improved Match Rate

Through our Append Process, we consistently achieve an average match rate of 70%+, exceeding 95% in many cases. Our advanced AI algorithms substantialy increase the matching accuracy and greatly enhances the likelihood of locating missing email addresses and enables a more comprehensive data enrichment process.


High Data Accuracy

Our service maintains a data accuracy rate of 95% at all times, minimizing errors and ensuring the reliability of the appended email addresses. Best Append Rates: We provide the best append rates in the industry, maximizing the number of successfully appended email addresses.


Data Security and Confidentiality

We recognize the paramount significance of data security. Upholding the highest standards of confidentiality, we handle your data with meticulous care. Our comprehensive and robust security measures ensure protection against unauthorized access, breaches, or any form of misuse, maintaining the integrity of your valuable information.


Verification and Permission

We perform rigorous verification checks and send personalized communications to obtain explicit consent for relevant mailers and notifications. By prioritizing compliance and respecting recipient preferences, we ensure data integrity and maintain a positive sender reputation.


Deliverability Guarantee

Our commitment to deliverability is backed by a 100% guarantee against hard bounces, ensuring that all appended email addresses are valid, active, and reachable. You can trust us to optimize your email campaigns for maximum reach and engagement.

Team Members

Tracking Our Success in Custom Lists

Measuring our impact through key indicators, showcasing our commitment to data-driven excellence and client success.
Target Audience Coverage
Data Accuracy and Completeness
Email Guarantee