# Top 10 Email List and Phone Number Database Alternatives & Competitors Explore the best alternatives to Email List and Phone Number Database for users who need new software features or want to try different solutions. Other important factors to consider when researching alternatives to Email List and Phone Number Database include reliability and ease of use. The best overall Email List and Phone Number Database alternative is KlientBoost. Other similar apps like Email List and Phone Number Database are memoryBlue, INFUSE, SmartSites, and SmartBug Media. Email List and Phone Number Database alternatives can be found in [Lead Generation Companies](https://www.g2.com/categories/lead-generation-services) but may also be in [HubSpot Consulting Services](https://www.g2.com/categories/hubspot-consulting-services) or [PPC Agencies](https://www.g2.com/categories/ppc-services). ## Best Paid & Free Alternatives to Email List and Phone Number Database - [KlientBoost](https://www.g2.com/products/klientboost/reviews) - [memoryBlue](https://www.g2.com/products/memoryblue/reviews) - [INFUSE](https://www.g2.com/products/infusemedia-infuse/reviews) - [SmartSites](https://www.g2.com/products/smartsites/reviews) - [SmartBug Media](https://www.g2.com/products/smartbug/reviews) - [Otter PR](https://www.g2.com/products/otter-pr/reviews) - [WebFX](https://www.g2.com/products/webfx/reviews) - [CIENCE](https://www.g2.com/products/cience/reviews) - [Martal Group](https://www.g2.com/products/martal-group/reviews) - [INSIDEA](https://www.g2.com/products/insidea-insidea/reviews) ## Top 10 Alternatives to Email List and Phone Number Database Recently Reviewed By G2 Community Browse options below. Based on reviewer data, you can see how Email List and Phone Number Database stacks up to the competition and find the best product for your business. ### 1. [KlientBoost](https://www.g2.com/products/klientboost/reviews) By KlientBoost **Average Rating:** 4.8/5 **Total Reviews:** 403 KlientBoost provides pay-per-click marketing and landing page solutions. Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs KlientBoost](https://www.g2.com/compare/email-list-and-phone-number-database-vs-klientboost) **Compare KlientBoost with other alternatives:** - [KlientBoost vs memoryBlue](https://www.g2.com/compare/klientboost-vs-memoryblue) - [KlientBoost vs INFUSE](https://www.g2.com/compare/infusemedia-infuse-vs-klientboost) - [KlientBoost vs SmartSites](https://www.g2.com/compare/klientboost-vs-smartsites) - [KlientBoost vs SmartBug Media](https://www.g2.com/compare/klientboost-vs-smartbug) - [KlientBoost vs Otter PR](https://www.g2.com/compare/klientboost-vs-otter-pr) - [KlientBoost vs WebFX](https://www.g2.com/compare/klientboost-vs-webfx) - [KlientBoost vs CIENCE](https://www.g2.com/compare/cience-vs-klientboost) - [KlientBoost vs Martal Group](https://www.g2.com/compare/klientboost-vs-martal-group) - [KlientBoost vs INSIDEA](https://www.g2.com/compare/insidea-insidea-vs-klientboost) ### 2. [memoryBlue](https://www.g2.com/products/memoryblue/reviews) By memoryBlue **Average Rating:** 4.6/5 **Total Reviews:** 322 memoryBlue helps B2B tech companies build and scale their go-to-market engines. For more than 20 years, we’ve helped hundreds of clients—from fast-growth startups to global enterprises—generate pipeline, expand markets, and build world-class sales teams. Our model combines the best of people and AI. With 650+ sales professionals across North America, EMEA, and APAC, we deliver global reach in 30+ languages. Every client engagement is supported by our SMART services: Sales, Marketing, Academy training, Recruiting and Technology—to create an end-to-end growth platform. In 2024, memoryBlue and Operatix joined forces to become one of the largest and most experienced outsourced sales growth partners in the world. Together, we bring deep expertise to support all go-to-market functions, plus a network of 1,200+ alumni and active candidates ready to scale with you. Whether you need to launch a new product, break into new segments or regions, fill pipeline fast or create expansion opportunities, memoryBlue has the talent, data and experience to help you hit your goals - predictably and globally. Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs memoryBlue](https://www.g2.com/compare/email-list-and-phone-number-database-vs-memoryblue) **Compare memoryBlue with other alternatives:** - [memoryBlue vs KlientBoost](https://www.g2.com/compare/klientboost-vs-memoryblue) - [memoryBlue vs INFUSE](https://www.g2.com/compare/infusemedia-infuse-vs-memoryblue) - [memoryBlue vs SmartSites](https://www.g2.com/compare/smartsites-vs-memoryblue) - [memoryBlue vs SmartBug Media](https://www.g2.com/compare/smartbug-vs-memoryblue) - [memoryBlue vs Otter PR](https://www.g2.com/compare/otter-pr-vs-memoryblue) - [memoryBlue vs WebFX](https://www.g2.com/compare/webfx-vs-memoryblue) - [memoryBlue vs CIENCE](https://www.g2.com/compare/cience-vs-memoryblue) - [memoryBlue vs Martal Group](https://www.g2.com/compare/martal-group-vs-memoryblue) - [memoryBlue vs INSIDEA](https://www.g2.com/compare/insidea-insidea-vs-memoryblue) ### 3. [INFUSE](https://www.g2.com/products/infusemedia-infuse/reviews) By INFUSE **Average Rating:** 4.5/5 **Total Reviews:** 294 INFUSE is a data-driven B2B demand generation network. Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs INFUSE](https://www.g2.com/compare/email-list-and-phone-number-database-vs-infusemedia-infuse) **Compare INFUSE with other alternatives:** - [INFUSE vs KlientBoost](https://www.g2.com/compare/infusemedia-infuse-vs-klientboost) - [INFUSE vs memoryBlue](https://www.g2.com/compare/infusemedia-infuse-vs-memoryblue) - [INFUSE vs SmartSites](https://www.g2.com/compare/infusemedia-infuse-vs-smartsites) - [INFUSE vs SmartBug Media](https://www.g2.com/compare/infusemedia-infuse-vs-smartbug) - [INFUSE vs Otter PR](https://www.g2.com/compare/infusemedia-infuse-vs-otter-pr) - [INFUSE vs WebFX](https://www.g2.com/compare/infusemedia-infuse-vs-webfx) - [INFUSE vs CIENCE](https://www.g2.com/compare/cience-vs-infusemedia-infuse) - [INFUSE vs Martal Group](https://www.g2.com/compare/infusemedia-infuse-vs-martal-group) - [INFUSE vs INSIDEA](https://www.g2.com/compare/infusemedia-infuse-vs-insidea-insidea) ### 4. [SmartSites](https://www.g2.com/products/smartsites/reviews) By SmartSites **Average Rating:** 4.9/5 **Total Reviews:** 259 SmartSites is a full service digital agency offering website design and development, SEO, and PPC. Our diverse team of designers, developers, and strategists is 50 people strong and spans across the globe. Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs SmartSites](https://www.g2.com/compare/email-list-and-phone-number-database-vs-smartsites) **Compare SmartSites with other alternatives:** - [SmartSites vs KlientBoost](https://www.g2.com/compare/klientboost-vs-smartsites) - [SmartSites vs memoryBlue](https://www.g2.com/compare/smartsites-vs-memoryblue) - [SmartSites vs INFUSE](https://www.g2.com/compare/infusemedia-infuse-vs-smartsites) - [SmartSites vs SmartBug Media](https://www.g2.com/compare/smartbug-vs-smartsites) - [SmartSites vs Otter PR](https://www.g2.com/compare/otter-pr-vs-smartsites) - [SmartSites vs WebFX](https://www.g2.com/compare/smartsites-vs-webfx) - [SmartSites vs CIENCE](https://www.g2.com/compare/cience-vs-smartsites) - [SmartSites vs Martal Group](https://www.g2.com/compare/martal-group-vs-smartsites) - [SmartSites vs INSIDEA](https://www.g2.com/compare/insidea-insidea-vs-smartsites) ### 5. [SmartBug Media](https://www.g2.com/products/smartbug/reviews) By SmartBug Media **Average Rating:** 4.8/5 **Total Reviews:** 213 SmartBug Media is the full service digital agency of choice for organizations looking to create resilient growth across the entire customer lifecycle. From marketing to sales, revenue operations to customer success, and e-commerce to integration, SmartBug combines sound strategies and technology with top talent to de-risk the future and set the course for continued success. Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs SmartBug Media](https://www.g2.com/compare/email-list-and-phone-number-database-vs-smartbug) **Compare SmartBug Media with other alternatives:** - [SmartBug Media vs KlientBoost](https://www.g2.com/compare/klientboost-vs-smartbug) - [SmartBug Media vs memoryBlue](https://www.g2.com/compare/smartbug-vs-memoryblue) - [SmartBug Media vs INFUSE](https://www.g2.com/compare/infusemedia-infuse-vs-smartbug) - [SmartBug Media vs SmartSites](https://www.g2.com/compare/smartbug-vs-smartsites) - [SmartBug Media vs Otter PR](https://www.g2.com/compare/otter-pr-vs-smartbug) - [SmartBug Media vs WebFX](https://www.g2.com/compare/smartbug-vs-webfx) - [SmartBug Media vs CIENCE](https://www.g2.com/compare/cience-vs-smartbug) - [SmartBug Media vs Martal Group](https://www.g2.com/compare/martal-group-vs-smartbug) - [SmartBug Media vs INSIDEA](https://www.g2.com/compare/insidea-insidea-vs-smartbug) ### 6. [Otter PR](https://www.g2.com/products/otter-pr/reviews) By Otter PR **Average Rating:** 4.9/5 **Total Reviews:** 204 Otter Public Relations is the fastest-growing PR agency in the USA. Our growing team of 45+ publicists and media partners focuses on getting your story told in the local and national media. Let us support your business in Media relations, Crisis Communications, & Reputation Management. Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs Otter PR](https://www.g2.com/compare/email-list-and-phone-number-database-vs-otter-pr) **Compare Otter PR with other alternatives:** - [Otter PR vs KlientBoost](https://www.g2.com/compare/klientboost-vs-otter-pr) - [Otter PR vs memoryBlue](https://www.g2.com/compare/otter-pr-vs-memoryblue) - [Otter PR vs INFUSE](https://www.g2.com/compare/infusemedia-infuse-vs-otter-pr) - [Otter PR vs SmartSites](https://www.g2.com/compare/otter-pr-vs-smartsites) - [Otter PR vs SmartBug Media](https://www.g2.com/compare/otter-pr-vs-smartbug) - [Otter PR vs WebFX](https://www.g2.com/compare/otter-pr-vs-webfx) - [Otter PR vs CIENCE](https://www.g2.com/compare/cience-vs-otter-pr) - [Otter PR vs Martal Group](https://www.g2.com/compare/martal-group-vs-otter-pr) - [Otter PR vs INSIDEA](https://www.g2.com/compare/insidea-insidea-vs-otter-pr) ### 7. [WebFX](https://www.g2.com/products/webfx/reviews) By WebFX **Average Rating:** 4.8/5 **Total Reviews:** 203 WebFX is a full-service digital marketing agency, and we create custom strategies for each of our clients based on their needs and goals. Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs WebFX](https://www.g2.com/compare/email-list-and-phone-number-database-vs-webfx) **Compare WebFX with other alternatives:** - [WebFX vs KlientBoost](https://www.g2.com/compare/klientboost-vs-webfx) - [WebFX vs memoryBlue](https://www.g2.com/compare/webfx-vs-memoryblue) - [WebFX vs INFUSE](https://www.g2.com/compare/infusemedia-infuse-vs-webfx) - [WebFX vs SmartSites](https://www.g2.com/compare/smartsites-vs-webfx) - [WebFX vs SmartBug Media](https://www.g2.com/compare/smartbug-vs-webfx) - [WebFX vs Otter PR](https://www.g2.com/compare/otter-pr-vs-webfx) - [WebFX vs CIENCE](https://www.g2.com/compare/cience-vs-webfx) - [WebFX vs Martal Group](https://www.g2.com/compare/martal-group-vs-webfx) - [WebFX vs INSIDEA](https://www.g2.com/compare/insidea-insidea-vs-webfx) ### 8. [CIENCE](https://www.g2.com/products/cience/reviews) By CIENCE **Average Rating:** 3.7/5 **Total Reviews:** 181 CIENCE is human-driven and machine powered managed services for outbound sales. It offers solutions to deliver cost-efficient yet highly-trained research, sales assistance and sales development resources for growth organizations, worldwide. Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs CIENCE](https://www.g2.com/compare/cience-vs-email-list-and-phone-number-database) **Compare CIENCE with other alternatives:** - [CIENCE vs KlientBoost](https://www.g2.com/compare/cience-vs-klientboost) - [CIENCE vs memoryBlue](https://www.g2.com/compare/cience-vs-memoryblue) - [CIENCE vs INFUSE](https://www.g2.com/compare/cience-vs-infusemedia-infuse) - [CIENCE vs SmartSites](https://www.g2.com/compare/cience-vs-smartsites) - [CIENCE vs SmartBug Media](https://www.g2.com/compare/cience-vs-smartbug) - [CIENCE vs Otter PR](https://www.g2.com/compare/cience-vs-otter-pr) - [CIENCE vs WebFX](https://www.g2.com/compare/cience-vs-webfx) - [CIENCE vs Martal Group](https://www.g2.com/compare/cience-vs-martal-group) - [CIENCE vs INSIDEA](https://www.g2.com/compare/cience-vs-insidea-insidea) ### 9. [Martal Group](https://www.g2.com/products/martal-group/reviews) By Martal Consulting Group **Average Rating:** 4.6/5 **Total Reviews:** 135 Martal is your on demand sales partner in North America, servicing B2B tech companies in US and Canada, generating them qualified leads, providing support staff and services right through to signed contracts. Our fractional sales executives and account managers will help your team in sourcing deals, pitching prospects and winning new business Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs Martal Group](https://www.g2.com/compare/email-list-and-phone-number-database-vs-martal-group) **Compare Martal Group with other alternatives:** - [Martal Group vs KlientBoost](https://www.g2.com/compare/klientboost-vs-martal-group) - [Martal Group vs memoryBlue](https://www.g2.com/compare/martal-group-vs-memoryblue) - [Martal Group vs INFUSE](https://www.g2.com/compare/infusemedia-infuse-vs-martal-group) - [Martal Group vs SmartSites](https://www.g2.com/compare/martal-group-vs-smartsites) - [Martal Group vs SmartBug Media](https://www.g2.com/compare/martal-group-vs-smartbug) - [Martal Group vs Otter PR](https://www.g2.com/compare/martal-group-vs-otter-pr) - [Martal Group vs WebFX](https://www.g2.com/compare/martal-group-vs-webfx) - [Martal Group vs CIENCE](https://www.g2.com/compare/cience-vs-martal-group) - [Martal Group vs INSIDEA](https://www.g2.com/compare/insidea-insidea-vs-martal-group) ### 10. [INSIDEA](https://www.g2.com/products/insidea-insidea/reviews) By INSIDEA **Average Rating:** 4.9/5 **Total Reviews:** 106 INSIDEA is an AI-first, Elite HubSpot Partner rated 4.99 across 450+ reviews. We onboard, migrate, and run HubSpot as your revenue engine across CRM, RevOps, marketing, web, and AI, for 1,500+ businesses in 25+ countries. Known for making HubSpot effortless. Categories in common with Email List and Phone Number Database: [Lead Generation Services](https://www.g2.com/categories/lead-generation-services) **Compare:** [Email List and Phone Number Database vs INSIDEA](https://www.g2.com/compare/email-list-and-phone-number-database-vs-insidea-insidea) **Compare INSIDEA with other alternatives:** - [INSIDEA vs KlientBoost](https://www.g2.com/compare/insidea-insidea-vs-klientboost) - [INSIDEA vs memoryBlue](https://www.g2.com/compare/insidea-insidea-vs-memoryblue) - [INSIDEA vs INFUSE](https://www.g2.com/compare/infusemedia-infuse-vs-insidea-insidea) - [INSIDEA vs SmartSites](https://www.g2.com/compare/insidea-insidea-vs-smartsites) - [INSIDEA vs SmartBug Media](https://www.g2.com/compare/insidea-insidea-vs-smartbug) - [INSIDEA vs Otter PR](https://www.g2.com/compare/insidea-insidea-vs-otter-pr) - [INSIDEA vs WebFX](https://www.g2.com/compare/insidea-insidea-vs-webfx) - [INSIDEA vs CIENCE](https://www.g2.com/compare/cience-vs-insidea-insidea) - [INSIDEA vs Martal Group](https://www.g2.com/compare/insidea-insidea-vs-martal-group) ## Explore Articles - [Top virtual data room provider with strong security features](https://www.g2.com/discussions/top-virtual-data-room-provider-with-strong-security-features) - [What mobile app debugging software supports both iOS and Android testing from a single interface?](https://www.g2.com/discussions/what-mobile-app-debugging-software-supports-both-ios-and-android-testing-from-a-single-interface) - [What are the best tools for monitoring database security events?](https://www.g2.com/discussions/what-are-the-best-tools-for-monitoring-database-security-events) - [Most effective customer success software for app developers](https://www.g2.com/discussions/most-effective-customer-success-software-for-app-developers) - [Top-rated asset tracking solutions with barcode/RFID support](https://www.g2.com/discussions/top-rated-asset-tracking-solutions-with-barcode-rfid-support) - [What's the best SMS marketing platform for driving high engagement without bombarding subscribers and causing message fatigue?](https://www.g2.com/discussions/what-s-the-best-sms-marketing-platform-for-driving-high-engagement-without-bombarding-subscribers-and-causing-message-fatigue) ## Spotlight Categories - [Video Conferencing Software](https://www.g2.com/categories/video-conferencing) - [Expense Management Software](https://www.g2.com/categories/expense-management) - [Knowledge Base Software](https://www.g2.com/categories/knowledge-base-software)