# Best Lead Generation Companies in Denver, CO *By [Alanna Iwuh](https://research.g2.com/insights/author/alanna-iwuh)* Lead generation services providers manage campaigns to discover and qualify customers for businesses, also known as leads. These services can be highly beneficial in filling an organization’s sales pipeline with potential clients; providers can also assist with establishing initial communications and building interest in the brand (demand generation). A number of these providers will assist with follow-up campaigns and other "lead nurturing" to ensure the best possible conversion rate. B2B lead generation services, or lead gen services, are typically used by sales departments but have proven to be beneficial for marketing teams when planning targeted outreach or generating new advertising efforts. Working with B2B lead generation companies can eliminate the guesswork of sales cold calls and present brands with high-quality leads (HQL) based on the brand’s ideal customer profile. This can streamline sales and marketing strategy, making sales quotas more easily attainable and setting the company up for success. B2B lead generation services work as a supplement to or a replacement for in-house efforts using [lead generation software](https://www.g2.com/categories/lead-generation) such as [lead capture software](https://www.g2.com/categories/lead-capture). Leads that are collected through an outsourced services provider can be further validated using [lead intelligence software](https://www.g2.com/categories/lead-intelligence) and [lead scoring software](https://www.g2.com/categories/lead-scoring). Lead lists that are assembled and delivered using these services can be uploaded into your organization’s [CRM software](https://www.g2.com/categories/crm) to be organized, accessed, and updated throughout the sales lifecycle. Partnering with B2B lead generation services in conjunction with other outsourced services such as [inbound marketing services](https://www.g2.com/categories/inbound-marketing) and [email marketing services](https://www.g2.com/categories/email-marketing-services) can provide businesses with a robust source to gather and nurture leads. To qualify for inclusion in the Lead Generation Services category, a provider must: - Perform customer profile creation interviews to better understand a company and determine its ideal target customers - Discover and source leads using one or more tactics, such as online research and content marketing - Qualify leads to ensure the information is correct and they are legitimate sales opportunities - Deliver complete lists of quality, verified leads ## How Many Lead Generation Companies Products Does G2 Track? **Total Products under this Category:** 805 ### Category Stats (Jun 2026) - **Average Rating**: 4.64/5 The average rating of products in this category, based on all submitted ratings - **New Reviews This Quarter**: 124 - **Buyer Segments**: Small-Business 50% │ Mid-Market 32% │ Enterprise 18% Represents the distribution of reviewers across all products in this category. - **Top Trending Product**: DemandFactor.com (+100.0%) - Among all products in this category, DemandFactor.com recorded the largest rating increase compared to last month *Last updated: June 09, 2026* ## How Does G2 Rank Lead Generation Companies Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 5,000+ Authentic Reviews - 805+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. --- **Sponsored** ### LevelUp Leads Most B2B companies know they need more outbound pipeline. The hard part is building the team, data, messaging, management, and reporting system required to do it well. LevelUp Leads helps B2B companies run outbound SDR programs without hiring and managing the function internally. We handle the full outbound motion: account research, contact data, messaging, cold calling, email, LinkedIn outreach, meeting booking, reporting, SDR management, and optimization. Our model is built for companies selling high-value products or services into complex B2B markets. That includes SaaS, technology, MSPs, manufacturing, industrial, finance, professional services, logistics, and other industries where buyers are hard to reach and sales conversations need to be qualified before they reach the sales team. Cold calling is a core part of our delivery model. Some clients need high-volume calling to create more market coverage and test messaging quickly. Others need a more account-based approach into a defined list of enterprise targets. LevelUp supports both models with trained SDRs, multi-channel outreach, and clear reporting. We use AI to make the program smarter, not to replace the SDR. AI helps us analyze conversations, identify objections, track buyer pain points, improve messaging, coach reps, and understand which industries, personas, and value propositions are producing the best results. LevelUp is different from email-only agencies, lead list vendors, and low-touch appointment-setting providers. We provide the people, process, data, tools, and management structure required to run outbound as a serious revenue function. [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=1377&secure%5Bdisplayable_resource_id%5D=1377&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=1377&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=160130&secure%5Bresource_id%5D=1377&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Flead-generation-services%3Fpage%3D4%26source%3Dsearch&secure%5Btoken%5D=2a0aab4d2661ae82d2949bf2f16ef8ef56c2c4a70e93304a2b63fad76c240a11&secure%5Burl%5D=https%3A%2F%2Flevelupleads.io%2Fg2-lp%2F%3Futm_source%3Dg2%26utm_medium%3Dlisting%26utm_campaign%3Ddemand-generation%26utm_content%3Dg2-profile&secure%5Burl_type%5D=custom_url) --- ## What Are the Top-Rated Lead Generation Companies Products in 2026? ### 1. [Scorpion](https://www.g2.com/products/scorpion/reviews) Scorpion is the leader in helping local businesses succeed by focusing on what truly matters—driving revenue. Our digital marketing solutions are built to support your business every step of the way, helping you attract more of the right customers, stand out online, and turn opportunities into measurable results. With over 20 years of experience, award-winning AI, and a proven track record, we’re shifting the industry’s focus from just generating leads to driving sustainable revenue growth. That’s why we developed RevenueMAX—the only complete digital marketing solution created to maximize your revenue. Thousands of businesses trust Scorpion to help them succeed, and we’re ready to do the same for you. With Scorpion, there’s no guesswork. Only growth. Learn more at Scorpion.co. **Average Rating:** 4.5/5.0 **Total Reviews:** 60 **Who Is the Company Behind Scorpion?** - **Seller:** [Scorpion](https://www.g2.com/sellers/scorpion) - **Company Website:** https://www.scorpion.co - **Year Founded:** 2001 - **HQ Location:** Salt Lake City, US - **Twitter:** @Scorpiondotco (1,665 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/1495045/ (1,418 employees on LinkedIn®) **Who Uses This Product?** - **Top Industries:** Law Practice, Legal Services - **Company Size:** 88% Small-Business, 8% Mid-Market #### What Are Scorpion's Pros and Cons? **Pros:** - Response Time (5 reviews) - Lead Generation (3 reviews) - Marketing Expertise (3 reviews) - Marketing Strategies (3 reviews) - Business Technology (2 reviews) **Cons:** - Complexity (1 reviews) - Inefficiency (1 reviews) - Lack of Clarity (1 reviews) - Not User-Friendly (1 reviews) - Poor Design (1 reviews) ### 2. [Elevated Third](https://www.g2.com/products/elevated-third-elevated-third/reviews) Elevated Third is a B2B digital agency built for marketers who need to drive more pipeline with fewer resources. We specialize in account-based marketing (ABM), technical SEO, and CRO—integrated directly with enterprise-grade Drupal. We’re part of an exclusive global group of Acquia Elite Partners, and the only agency with the added distinction of being a 6sense Premier Partner. This rare combination gives us a unique ability to connect your Drupal platform with a high-performing ABM and demand gen engine. Our senior team of strategists and engineers bridges marketing and technology to optimize your martech stack, boost performance, and align everything around what actually converts. We don’t wait for perfect plans. We find opportunities fast, generate results early, and scale what works. **Average Rating:** 4.8/5.0 **Total Reviews:** 5 **Who Is the Company Behind Elevated Third?** - **Seller:** [Elevated Third](https://www.g2.com/sellers/elevated-third-c7c59b5e-6330-4470-8977-3b94a1976d7e) - **HQ Location:** N/A - **Twitter:** @elevatedthird (1,351 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®) **Who Uses This Product?** - **Company Size:** 40% Enterprise, 40% Mid-Market #### What Are Elevated Third's Pros and Cons? **Pros:** - Communication (3 reviews) - Customer Support (2 reviews) - Engagement (2 reviews) - Project Management (2 reviews) - Recommendations (2 reviews) **Cons:** - Communication Issues (1 reviews) - Delivery Delays (1 reviews) - Expensive (1 reviews) - Slow Response Time (1 reviews) - Time Management (1 reviews) ## What Is Lead Generation Companies? [Marketing Services Providers](https://www.g2.com/categories/marketing-services) ## What Software Categories Are Similar to Lead Generation Companies? - [Digital Marketing Services](https://www.g2.com/categories/digital-marketing) - [Email Marketing Services Providers](https://www.g2.com/categories/email-marketing-services) - [Outsourced Sales Companies](https://www.g2.com/categories/outsourced-sales-providers) --- ## What Are the Most Common Questions About Lead Generation Companies? ### What is the typical onboarding process for lead generation services? The typical onboarding process for lead generation services generally includes initial consultations to understand client needs, setting up accounts, integrating with existing systems, and training sessions for users. For instance, services like HubSpot and ZoomInfo emphasize personalized onboarding with dedicated support teams, while others like Leadfeeder focus on self-service resources. Most users report that effective onboarding significantly enhances the overall experience, with many noting that a structured approach leads to quicker results and better utilization of features. ### How do lead generation services ensure data quality and accuracy? Lead generation services ensure data quality and accuracy through various methods, including automated data validation, regular updates, and user feedback mechanisms. For instance, platforms like HubSpot and ZoomInfo emphasize real-time data enrichment and verification processes, which are highlighted in user reviews. Additionally, services such as Clearbit and Leadfeeder utilize machine learning algorithms to enhance data accuracy, with users noting improvements in lead relevance and reduced bounce rates. Overall, these practices contribute to maintaining high standards of data integrity across the lead generation landscape. ### What support options are available with lead generation services? Lead generation services typically offer various support options, including live chat, email support, and phone support. For instance, products like HubSpot, ActiveCampaign, and Marketo provide extensive customer support through these channels, with HubSpot noted for its responsive live chat feature. Additionally, many services offer knowledge bases and community forums for self-service support, enhancing user experience and accessibility. The availability of dedicated account managers is also a common feature among top-rated services, ensuring personalized assistance. ### How scalable are lead generation services for growing businesses? Lead generation services are highly scalable for growing businesses, as they offer flexible pricing models and customizable features. Users report that platforms like HubSpot, Salesforce, and Marketo effectively adapt to varying business sizes and needs, with HubSpot receiving a 4.5 rating for its scalability. Salesforce is noted for its extensive integration capabilities, allowing businesses to expand their lead generation efforts seamlessly. Additionally, Marketo's automation features are praised for supporting growth without significant increases in resource allocation, making these services suitable for businesses aiming to scale. ### What are common challenges when implementing lead generation services? Common challenges when implementing lead generation services include integrating with existing systems, as noted by users who report difficulties in syncing data across platforms. Additionally, many users highlight the need for ongoing optimization of lead quality, with some expressing frustration over the volume of low-quality leads generated. Budget constraints also pose a significant challenge, as companies often struggle to balance cost with the effectiveness of the services. Finally, training staff to effectively use these services is frequently mentioned as a hurdle that can impede successful implementation. ### How do lead generation services handle compliance with data protection regulations? Lead generation services typically prioritize compliance with data protection regulations by implementing robust data handling practices. Many platforms, such as HubSpot, ZoomInfo, and Leadfeeder, emphasize features like GDPR compliance, consent management, and secure data storage. Users frequently highlight the importance of these compliance features in reviews, noting that services provide clear guidelines and tools to manage user consent effectively. Additionally, platforms often offer training resources to help users understand and navigate compliance requirements, ensuring that businesses can generate leads while adhering to legal standards. ### What differentiates lead generation services from traditional marketing methods? Lead generation services differ from traditional marketing methods primarily in their targeted approach and measurable outcomes. Users highlight that lead generation services, such as HubSpot, Marketo, and ActiveCampaign, focus on capturing specific leads through tailored campaigns, resulting in higher conversion rates. In contrast, traditional marketing often employs broader strategies, leading to less precise targeting and lower engagement. Additionally, lead generation tools provide analytics and insights that allow for real-time adjustments, enhancing effectiveness, while traditional methods may lack such immediacy and adaptability. ### What are the average costs associated with lead generation services? The average costs associated with lead generation services vary significantly based on the provider and service level. For instance, services like HubSpot typically range from $50 to $3,200 per month, while services like Leadfeeder can start around $53 per month. Other providers, such as ZoomInfo, may charge between $10,000 to $30,000 annually, depending on the features and scale of usage. Overall, businesses can expect to invest anywhere from a few hundred to several thousand dollars monthly, depending on their specific needs and chosen service. ### How do lead generation services integrate with existing CRM systems? Lead generation services typically integrate with existing CRM systems through APIs, allowing seamless data transfer and synchronization. Users report that platforms like HubSpot, Salesforce, and Zoho CRM offer robust integration capabilities, enabling automatic lead updates and tracking. For instance, HubSpot users highlight its ease of integration with various lead generation tools, while Salesforce users appreciate the extensive customization options available. Additionally, many services provide pre-built connectors or plugins that facilitate quick setup, enhancing workflow efficiency and data accuracy. ### What key features should I look for in lead generation services? When evaluating lead generation services, look for features such as advanced targeting options, integration capabilities with CRM systems, automated lead scoring, real-time analytics, and customizable lead nurturing workflows. Services like HubSpot, ZoomInfo, and Leadfeeder are noted for their robust analytics and integration features, while tools like LinkedIn Sales Navigator excel in targeting and outreach capabilities. Additionally, consider user feedback on customer support and ease of use, as these factors significantly impact overall satisfaction. ### How can I measure the ROI of lead generation services? To measure the ROI of lead generation services, track metrics such as conversion rates, customer acquisition costs, and revenue generated from leads. Analyze user feedback indicating that platforms like HubSpot, Marketo, and Salesforce are praised for their analytics capabilities, allowing users to assess lead quality and campaign effectiveness. Users report that effective lead generation services can yield a return of 3-5 times the investment, emphasizing the importance of aligning lead quality with sales outcomes to accurately gauge ROI. ### What types of businesses benefit most from lead generation services? Businesses in B2B sectors, particularly those in technology, marketing, and professional services, benefit most from lead generation services. These industries often require a steady influx of qualified leads to sustain growth, as evidenced by high user ratings for tools like HubSpot, Salesforce, and Marketo, which are frequently utilized for their robust lead generation capabilities. Additionally, companies with sales teams that rely on data-driven insights to target potential customers effectively see significant improvements in conversion rates.