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: April 01, 2026
All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.
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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 ]- Location
- New Castle, Delaware
- Number of Employees
- Under 49
- Average Hourly Rate
- $55/hr
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsOnyx8 Digital Agency Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio-thumb-webp.webp)
SEO Project Grillshop Case Study (Dev & SEO)
Reviews verified by DesignRush and sourced from the agency's profileOnyx8 Digital Agency Reviews & Testimonials
SEO Review from Vladimir Abrahamyan
Onyx8 takes a personalized approach to every client rather than offering a one-size-fits-all solution. One of our clients needed an eCommeerce retail store. So the team understood the business needs, prepared a plan, and after aligning it with us started to implement the changes. After 4-5 months, we can already see an increase in organic traffic by over 200% since we started working with them. Thanks team for all your efforts.
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eCommerce Consulting Review from Jacqueline Reingold
We wanted to widen our market from Europe to US market to sell online so we needed digital consultation. Onyx8 Agency did a full analysis of our digital strategy, identified the main gaps and main traffic acquisition channels along with PPC and SEO strategies, and provided a complex digital strategy for penetrating the US market. The team is patient, knowledgeable, responsive, and always goes the extra mile to ensure success.
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Web Design Review from Kelly Olivas
Onyx8 designed a beautiful and user-friendly SaaS website. They exceeded my expectations with their professionalism and efficient project management. They also designedSpectrumSynchs logo which was amazing and included everything business owners highlighted it to have (colors, association, etc.). Both web designers and developers did their due diligence to understand the required business needs. Onyx8s work quality is second to none.
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Data sourced from the agency's DesignRush profileLa COLOMBE Gold's Gym TheBlueground Steezy Studio Hf4you INKjetsclub
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 ]- Location
- New Castle, Delaware
- Number of Employees
- 100 - 249
- Portfolios Count
- 16 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsThe Crowdfunding Formula Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio
B2C Marketing Project CIGA Design 
B2C Marketing Project Kara Pure 
Marketing Consulting Project BionicGym 
eCommerce Marketing Project Poopail 
B2C Marketing Project OEPLAY 
Advertising Project HYPHEN Wireless Earbuds
Data sourced from the agency's DesignRush profileFUELL Inc. Yashica Co., Ltd CIGA Design Winston Privacy Rolling Square Cheerble Particula Kara Water BionicGym Pulsetto
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 ]- Location
- New Castle, Delaware
- Number of Employees
- Under 49
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPropel Services
Reviews verified by DesignRush and sourced from the agency's profilePropel Reviews & Testimonials
Le Con's Review Sourced from Google
I paid to have a flat fixed which was overpriced as is. And then my tire blew out the next day due to th3 incorrect fix. He put the wrong amount of tire pressure. So I paid for a new tire and a tire line. They said it would take two weeks to replace one tire. And then after two weeks they stopped answering the phone. I had to call the other shop to get ahold of someone. Just to find out it will take another eight days to change one tire. Probably the most unprofessional people I've ever met.
Show morePA Creative's Review Sourced from Google
Propel,, did a great job. They gave me a great deal on a remi Demi bike save me about 600 bucks and I love the bike shipped it all the way from New York to Louisiana. No problems. It is fun to ride , about to buy a second one
Show moreEleanor Kaye's Review Sourced from Google
Amazing customer service! I had some challenges with my electric bike purchase (not to do with Propel) but everyone at this store went above and beyond to make sure it was resolved. In particular a huge shoutout to Cat who handled all our correspondence and issues with great care and attention to detail. She made an otherwise challenging process so easy. It makes so much difference when someone clearly cares about their job and the service you are getting. She was incredible and I could not recommend her and Propel Electric Bikes more!
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Data sourced from the agency's DesignRush profileFenice Energy OneistoX LivWell
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 ]- Location
- New Castle, Delaware
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCalling Agency Services
Data sourced from the agency's DesignRush profileFinance Industry Real Estate Industry Transportation & Logistics Industry
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 ]- Location
- New Castle, Delaware
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMediatrenz Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio
SEO Project Above all sports hoops 
SEO Project Quebec Photo Booth
Reviews verified by DesignRush and sourced from the agency's profileMediatrenz Reviews & Testimonials
Web Design Review from Maurice Rissman
This company should not be in business, they destroyed my website & decimated traffic. New site takes around 30 sec's to load EVERY page, charged for services that didn't provide. Farm the work out to India where pay is circa $200USD p/mth, and charge the client circa $35 p/hr!! They are absolutely incompetent beyond belief!!
Show morePreeti Gupta's Review Sourced from Google
I never believed in SEO until I saw what MEDIATRENZ did for us. From page 6 to page 1 in three months—their SEO services are unmatched. Transparent reporting and intelligent keyword usage really impressed us.
Show moreTanishq Gupta's Review Sourced from Google
I’ve worked with other agencies before, but none understood social media marketing like MEDIATRENZ. They know how to speak your brand language and turn likes into conversions. My DMs are now filled with real inquiries, not bots!
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Data sourced from the agency's DesignRush profileStar City Auto ATV Box Le Law Group Maximum Velocity Sports Quebec Photo Booth
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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.
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