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Compare Marketing by Data vs Closed:in

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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Closed:in

Cold Email Outreach Website

Closed:in is a cold-email specialist and Clay/Instantly partner building hyper-personalized outbound systems that book meetings and generate pipeline. They use Clay-powered outbound campaigns for B2B service companies to deliver sales calls within 2-3 weeks.

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Feature Comparison

Attribute	Marketing by Data	Closed:in
Category	B2B Lead Generation	Cold Email Outreach
Rating	-	-
Location	Burbank, California	Utrecht
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 Cold email campaign design & ops Prospect sourcing & enrichment (Clay stacks) Deliverability engineering & inbox landing Reply qualification workflows & appointment setting Template + sequence personalization at scale	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 Cold email campaign design & ops Prospect sourcing & enrichment (Clay stacks) Deliverability engineering & inbox landing Reply qualification workflows & appointment setting Template + sequence personalization at scale
Industries	B2B Services Consumer Goods Fashion Retail Health & Wellness Legal Services	SaaS fintech recruitment agencies e-commerce financial services
Pros	Serves a wide range of industries including legal, e-commerce, and local services Offers free SEO audit and consultation to demonstrate value upfront	High reply rates on top campaigns (claimed 50%+) Quick pipeline generation (e.g., $190K in 60 days) Official Clay Solutions Partner and Certified Instantly Expert End-to-end automation using Clay and Instantly Trusted by 50+ B2B companies
Cons	No client reviews or ratings available on Semrush profile Minimum project budget of $1,000 may not suit micro-businesses	No client reviews available on Clutch or G2 Small team (1-10 employees) may limit capacity for large-scale campaigns
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.

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