# Best Email Marketing Services Providers in Denver, CO ## How Many Email Marketing Services Providers Products Does G2 Track? **Total Products under this Category:** 499 ### Category Stats (Aug 2026) - **Average Rating:** 4.6/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** Acquisition Inc (+0.25%) - Among all products in this category, Acquisition Inc recorded the largest rating increase compared to last month _Last updated: August 01, 2026_ ## How Does G2 Rank Email Marketing Services Providers Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 3,100+ Authentic Reviews - 499+ 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. ## G2 Grid® for Email Marketing Services Providers ![G2 Grid® for Email Marketing Services Providers plotting products by satisfaction and market presence](https://www.g2.com/categories/email-marketing-services/grids.png?focus%5B%5D=87352&focus%5B%5D=60536&focus%5B%5D=1430549&focus%5B%5D=154740&focus%5B%5D=54702&focus%5B%5D=1192167&focus%5B%5D=38123&focus%5B%5D=30406) Highlighted products: Martal Group, Belkins, Outbound System, ViB.Tech, pharosIQ, Designity, CIENCE, and Campaign Manager +. Underlying data: [Grid® JSON](https://www.g2.com/categories/email-marketing-services/grids.json?focus%5B%5D=martal-group&focus%5B%5D=belkins&focus%5B%5D=outbound-system&focus%5B%5D=vib-tech&focus%5B%5D=pharosiq&focus%5B%5D=designity-inc-designity&focus%5B%5D=cience&focus%5B%5D=eyereturn-marketing-campaign-manager) **Sponsored** ### Apollo.io Apollo.io is an AI-powered go-to-market (GTM) platform that helps revenue teams find, engage, and manage B2B buyers across the entire sales cycle. Apollo.io is the company behind the industry’s first fully agentic GTM platform, transforming how revenue teams execute. Going beyond automation, Apollo’s intelligent agents actively drive results across the entire sales funnel – from prospecting to deal management – all in one place. Trusted by millions of users and hundreds of thousands of companies – including Anthropic, Autodesk, and Docusign – Apollo is making world-class go-to-market simple, intelligent, and accessible for all. Apollo serves sales development representatives, account executives, sales leaders, revenue operations, and marketing teams at B2B organizations of various sizes. Teams use Apollo to build and maintain target account lists, orchestrate outbound and inbound motions, manage opportunities, and understand which activities lead to qualified pipeline and closed revenue. Key capabilities include: Data and targeting: Access to a large B2B database with company and contact details, including firmographic, technographic, and buyer signal data, so users can define ideal customer profiles and create precise segments for outreach. Prospecting and enrichment: Tools to search, filter, and save prospect lists, plus enrichment workflows that keep contact and account records up to date in Apollo and connected systems such as CRM. Sales engagement: Multi-step, multi-channel sequences for email, calls, and tasks that standardize how reps follow up with prospects, with controls for timing, throttling, and deliverability. Agentic and AI-assisted workflows: Intelligent agents and AI features that help with account research, lead scoring, message generation, and next-step recommendations so reps can prioritize and personalize at scale. Deal and activity management: Basic CRM-style functionality for tracking opportunities, stages, activities, and notes, giving teams a single view of pipeline health and sales performance. By combining data, engagement, and deal execution in one platform, Apollo is designed to reduce the number of disconnected tools in a typical GTM stack and provide a consistent workflow for building pipeline and managing deals. This helps organizations improve data quality, increase seller productivity, and run more structured, measurable go-to-market programs. [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=777&secure%5Bchosen_at%5D=2026-08-02T08%3A59%3A38Z&secure%5Bdisplayable_resource_id%5D=628&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=19743&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=19743&secure%5Bresource_id%5D=777&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Femail-marketing-services%2Flocations%2Fdenver-co-us&secure%5Btoken%5D=862e8577cf3616f1c8935f8902f17007a2e7898b7bae4d940f554c97831f5310&secure%5Burl%5D=https%3A%2F%2Fwww.apollo.io%2Fdemo%3Futm_source%3Dg2%26utm_medium%3Dcpc%26utm_campaign%3DG2Clicks%26utm_content%3Dtopic%26utm_term%3Doutboundcalltracking&secure%5Burl_type%5D=custom_url) ### [Fruition](https://www.g2.com/products/fruition/reviews) Fruition is a digital growth agency specializing in web design, web development, and digital marketing services. We work with open source platforms (Drupal, WordPress, and Magento) and deliver high quality SEO, PPC, Email Marketing, and Social Media campaigns. Fruition is a Denver Business Journal, “Best Places to Work” and ColoradoBiz Magazine “Best Marketing+Advertising Agency.” **Average Rating:** 5.0/5.0 **Total Reviews:** 1 #### Who Is the Company Behind Fruition? - **Seller:** [Fruition](https://www.g2.com/sellers/fruition) - **Year Founded:** 2003 - **HQ Location:** Denver, US - **Twitter:** @FruitionSearch 6,524 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=0745e044857d4b7d286a75cf07d2dcdeb25ae2e7b1e7035311f8538b56fb0c26&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ffruition-net%2F&secure%5Burl_type%5D=linkedin_company_website) 70 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Medium #### What Are Recent G2 Reviews of Fruition? **["Great customer service"](https://www.g2.com/survey_responses/fruition-review-1109239)** **Rating:** 5.0/5.0 stars _— Summer N._ [Read full review](https://www.g2.com/survey_responses/fruition-review-1109239) ### [AdVision Marketing](https://www.g2.com/products/advision-marketing/reviews) We are a full service digital marketing agency, specializing in inbound marketing, search engine optimization, and search engine marketing, and pay-per-click. #### Who Is the Company Behind AdVision Marketing? - **Seller:** [AdVision Marketing](https://www.g2.com/sellers/advision-marketing) - **HQ Location:** N/A - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® ### [Annabel Media](https://www.g2.com/products/annabel-media/reviews) Annabel Media is a full-service communications management agency, offering services in marketing, public relations, content marketing and social media. #### Who Is the Company Behind Annabel Media? - **Seller:** [Annabel Media](https://www.g2.com/sellers/annabel-media) - **HQ Location:** N/A - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® ### [Buhv Designs](https://www.g2.com/products/buhv-designs/reviews) Buhv Designs is a family of creative technologists with a proven track record of delivering cutting edge website design/functionality, strategically aligned content, and end-to-end digital marketing services. #### Who Is the Company Behind Buhv Designs? - **Seller:** [Buhv Designs](https://www.g2.com/sellers/buhv-designs) - **Year Founded:** 2002 - **HQ Location:** Cleveland, US - **Twitter:** @BuhvDesigns 334 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ad02487e44a333bf67275dd4c2e455ab2bbce25f7694877d585e2a8dbabf0022&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F42connect&secure%5Burl_type%5D=linkedin_company_website) 11 employees on LinkedIn® ### [Inflow](https://www.g2.com/products/inflow/reviews) Inflow is an award-winning digital marketing agency based in Tampa, FL. Our team of SEO, PPC, paid social, and CRO experts helps retailers and brands grow across digital marketing channels. Unlike other agencies, Inflow doesn't have account managers. Instead, clients work directly with industry veterans with decades of experience in their chosen specialty — including eCommerce, lead generation, healthcare, travel/tourism, and much more. Our accolades speak for themselves: - Moz-Recommended Company - Google Premier Partner - Meta Business Partner - Microsoft Advertising Partner - Buy With Prime Agency Partner And, with a 97% client retention rate, a 5/5 average client Clutch review, and a two-year average relationship length, we can boast plenty of happy clients, too. At Inflow, every scope of work is customized to a brand's unique business challenges, goals, and budget, designed to produce the best results possible. We'll bring more than 135 years of combined experience to craft a tailored digital marketing strategy that helps your brand grow sustainably for years to come. Stop settling for missed expectations, communication challenges, and misalignment with your marketing partner. Let Inflow be the last digital marketing agency you ever need — and get ready to see the results that your business deserves. #### Who Is the Company Behind Inflow? - **Seller:** [Inflow](https://www.g2.com/sellers/inflow) - **Year Founded:** 2003 - **HQ Location:** Tampa, US - **Twitter:** @goinflow 1,692 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=6ea0ba785ae6aec05d46938067808cc62b9c3d97bbb808c7fd631038ac198f93&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fgo-inflow&secure%5Burl_type%5D=linkedin_company_website) 14 employees on LinkedIn® ### [Red Door Interactive](https://www.g2.com/products/red-door-interactive/reviews) We are a data-driven marketing agency that help brands effectively and efficiently connect with customers across the right mix of touch points. #### Who Is the Company Behind Red Door Interactive? - **Seller:** [Red Door Interactive](https://www.g2.com/sellers/red-door-interactive) - **Year Founded:** 2002 - **HQ Location:** San Diego, California, United States - **Twitter:** @reddoor 5,184 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=c0181ac826d90cdab198abf62cf2fc6cd2a24a2e381379a1f0249250ebe76684&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fred-door-interactive&secure%5Burl_type%5D=linkedin_company_website) 104 employees on LinkedIn® Spotlight Categories [Live Chat Software](https://www.g2.com/categories/live-chat) [Contract Management Software](https://www.g2.com/categories/contract-management) [Procure to Pay Software](https://www.g2.com/categories/procure-to-pay) [Conversation Intelligence Software](https://www.g2.com/categories/conversation-intelligence) [Virtual Data Room Software](https://www.g2.com/categories/virtual-data-room-vdr) Similar Categories - [Advertising Agencies](/categories/advertising-agencies) - [Mobile Marketing Companies](/categories/mobile-marketing-companies) [Browse Email Marketing Services Themes](/categories/email-marketing-services/themes) ![Yukta Rustagi](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Yukta Rustagi") YR Researched and written by [Yukta Rustagi](https://research.g2.com/insights/author/yukta-rustagi) Updated October 3, 2024 Email marketing is the creation and facilitation of marketing campaigns that are sent via email, usually to a group of people. This form of marketing has broad applications and can help businesses acquire new customers, attract repeat customers, and build customer loyalty. Examples of email campaigns include publishing a recurring newsletter, announcing the launch of a new product, or sending birthday greetings to customers. Email marketing services are often used by businesses that want to keep customers engaged via email but lack the expertise or personnel to produce effective content and manage email lists. Generally, email marketing services can outsource either all or part of a business's email marketing efforts. Some services may offer integration with a business's [customer relationship management software](https://www.g2.com/categories/crm-related/products). Businesses seeking a hands-on approach may choose to facilitate their own email marketing campaigns or supplement outsourced service with [email marketing services](https://www.g2.com/categories/email-marketing-services). Show More