Find the right digital marketing agency in New Castle, Delaware, to boost your online visibility and engagement. DesignRush features agencies that have partnered with industry leaders like Cisco and Mastercard. With over 1M monthly visitors and 100,000 client-agency matches each month, our platform is a trusted resource for businesses seeking effective marketing solutions. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.

Best New Castle Digital Marketing Company Rankings

5 Companies - Rankings updated: July 02, 2026

DesignRush assesses agencies using expertise standards and verified client experiences to help you make better decisions. Certain agencies have paid placements.

United States × Delaware × New Castle ×
  • Get a Refined Strategy.

    Get a Refined Strategy.

    Onyx is a digital agency working globally and providing results-driven solutions. It helps brand's boost their organic presence through digital services such as SEO, Web Design & Web Development.  [... see all Onyx8 Digital Agency reviews ]

    Top Services:

    • Digital Marketing
    • Web Design
    • Branding
    Location
    New Castle, Delaware
    Number of Employees
    Under 49
    Average Hourly Rate
    $55/hr
    Portfolios Count
    2 Projects Listed
  • We Make Million-Dollar Campaigns

    We Make Million-Dollar Campaigns

    We run million-dollar campaigns for brands with innovative products. Thanks to our result-proven ecosystem and the team.  [... view The Crowdfunding Formula profile ]

    Top Services:

    • Digital Marketing
    • Facebook
    • Influencers
    Location
    New Castle, Delaware
    Number of Employees
    100 - 249
    Portfolios Count
    16 Projects Listed
  • Scale Faster with AI-Augmented Lifecycle Marketing Experts

    Scale Faster with AI-Augmented Lifecycle Marketing Experts

    Growth and retention of B2C and D2C brands rely heavily on customer engagement to make sure they keep on coming back and interact with the brand. Propel helps you keep the interaction alive by crafting tailored marketing automation solutions across different channels with tactical strategies.  [... view Propel profile ]

    Top Services:

    • Digital Marketing
    • Marketing Analytics
    • B2C
    Location
    New Castle, Delaware
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
  • B2B Lead Generation Agency | Fueling Your Pipeline with Qualified B2B Leads

    B2B Lead Generation Agency | Fueling Your Pipeline with Qualified B2B Leads

    CallingAgency is your trusted partner in driving business growth through expert B2B lead generation, cold calling, appointment setting, and telemarketing services.  [... view Calling Agency profile ]

    Top Services:

    • Digital Marketing
    Location
    New Castle, Delaware
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • Empowering Digital Innovations.

    Empowering Digital Innovations.

    Mediatrenz stands as a prominent digital marketing agency based in India, providing a comprehensive array of services including SEO, web design and development, mobile app development, PPC, ORM, web application development, server management, ASO, and WordPress development. With a focus on delivering  [... see all Mediatrenz reviews ]

    Top Services:

    • Digital Marketing
    • PPC
    • Digital Advertising
    Location
    New Castle, Delaware
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Portfolios Count
    2 Projects Listed

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About The Author and Expert Reviewer

Natasa Glikman is an experienced editor and content writer with over 10 years of experience in writing, editing, and translating articles across various topics, with a strong focus on marketing and advertising. At DesignRush, Natasa currently works as an editor, where she refines and enhances B2B content to ensure accuracy, clarity, and consistency across agency profiles and industry reports.

Mariana Delgado is the Head of Marketing at DesignRush, with more than ten years of experience across digital marketing, sales management, search, and video advertising. Since joining DesignRush, she has delivered 3× site-traffic growth and 2× growth in monthly revenue by building scalable, performance-led programs that connect acquisition, content, and brand across channels. Her campaigns have achieved a 5:1 ROAS.