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Compare Closed:in vs Marketing by Data

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

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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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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Feature Comparison

Attribute	Closed:in	Marketing by Data
Category	Cold Email Outreach	B2B Lead Generation
Rating	-	-
Location	Utrecht	Burbank, California
Services	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 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
Industries	SaaS fintech recruitment agencies e-commerce financial services	B2B Services Consumer Goods Fashion Retail Health & Wellness Legal Services
Pros	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	Serves a wide range of industries including legal, e-commerce, and local services Offers free SEO audit and consultation to demonstrate value upfront
Cons	No client reviews available on Clutch or G2 Small team (1-10 employees) may limit capacity for large-scale campaigns	No client reviews or ratings available on Semrush profile Minimum project budget of $1,000 may not suit micro-businesses
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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