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Compare Marketing by Data vs Kelp

Side-by-side comparison of features, pricing, services, ratings and more.

Marketing by Data

B2B Lead Generation Website

Marketing by Data is an industry-leading digital marketing agency since 2008, specializing in SEO, paid ads, and data-driven strategies. They also train other agencies on digital marketing techniques, offering a full suite of services from strategy to execution.

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Winner

Kelp

Cold Email Outreach Website

Kelp is a small, senior-led creative agency focused on building websites and digital systems that perform, scale, and remain maintainable long after launch. They partner with organizations that value clarity, technical precision, and long-term thinking.

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Feature Comparison

Attribute	Marketing by Data	Kelp
Category	B2B Lead Generation	Cold Email Outreach
Rating	-	Winner +4.4 higher
Location	Burbank, California	Brooksville, Florida
Services	Advertising Display Ads Native Advertising PPC Retargeting and Remarketing Video Marketing Marketing Advice Lead Generation Market Research SEO Link Building Local SEO Mobile SEO Technical SEO Branding Brand Strategy Online Reputation Management Marketing Automation Email Marketing Shopify SEO Wordpress SEO Web Development Digital Design Graphic Design Logo Design Product Design UX Design Web Design Website Maintenance Wordpress Design	Advertising Display Ads Native Advertising PPC Retargeting and Remarketing Video Marketing Marketing Advice Lead Generation Market Research SEO Link Building Local SEO Mobile SEO Technical SEO Branding Brand Strategy Online Reputation Management Marketing Automation Email Marketing Shopify SEO Wordpress SEO Web Development Digital Design Graphic Design Logo Design Product Design UX Design Web Design Website Maintenance Wordpress Design
Industries	B2B Services Consumer Goods Fashion Retail Health & Wellness Legal Services	Architecture B2B Services Ecommerce Media & Entertainment Real Estate
Pros	Serves a wide range of industries including legal, e-commerce, and local services Offers free SEO audit and consultation to demonstrate value upfront	Senior-led team with no junior layer ensures high-quality execution and accountability. Strategy-first approach focusing on structure and user flow before visual design. Specializes in WordPress and HubSpot CMS for scalable, marketer-friendly systems. Deliberately small team allows tight communication and faster decision-making.
Cons	No client reviews or ratings available on Semrush profile Minimum project budget of $1,000 may not suit micro-businesses	Small team size (1-9) may limit capacity for large-scale or simultaneous projects. No mention of paid media or PPC services, which may be a gap for full-funnel marketing
Website	Visit Site	Visit Site

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Free Plan Available

You shouldn’t have to overpay for cold email tools. With Mystrika, you won’t.

It does cold email warmup, sequences, unified inbox, and AI writing - all in one place. Every other tool that does this charges somewhere between $100 and $500 a month. Mystrika has a free plan. 500 prospects. No expiry. No card.

The people who consistently book meetings from cold email aren’t smarter. They just stopped leaving money on the table.

See the Free Plan

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