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Compare Closed:in vs Zeroten Oy

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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Winner

Zeroten Oy

B2B Lead Generation Website

Zeroten Oy is a Helsinki-based marketing agency that creates conditions for growth through data-driven marketing communications. They specialize in increasing awareness, demand, sales, and market share for businesses of all sizes.

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Feature Comparison

Attribute	Closed:in	Zeroten Oy
Category	Cold Email Outreach	B2B Lead Generation
Rating	-	Winner +4.5 higher
Location	Utrecht	Helsinki, Uusimaa, Finland
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 Content Marketing Content Strategy Copywriting Marketing Advice Lead Generation Market Research Marketing Automation Email Marketing SEO Backlink Management International SEO Link Building Local SEO Mobile SEO SEO Consulting Search Engine Marketing Technical SEO Wordpress SEO Web Development Graphic Design Logo Design Web Design Wordpress Design	Cold email campaign design & ops Prospect sourcing & enrichment (Clay stacks) Deliverability engineering & inbox landing Reply qualification workflows & appointment setting Template + sequence personalization at scale Content Marketing Content Strategy Copywriting Marketing Advice Lead Generation Market Research Marketing Automation Email Marketing SEO Backlink Management International SEO Link Building Local SEO Mobile SEO SEO Consulting Search Engine Marketing Technical SEO Wordpress SEO Web Development Graphic Design Logo Design Web Design Wordpress Design
Industries	SaaS fintech recruitment agencies e-commerce financial services	B2B Services Construction Ecommerce Health & Wellness Manufacturing
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	Proven track record of high ROI (up to 28,000% in one case) Full-service agency covering strategy, content, SEO, and web development Works with small, mid, and enterprise businesses Client reviews highlight deep understanding and minimal need for briefing
Cons	No client reviews available on Clutch or G2 Small team (1-10 employees) may limit capacity for large-scale campaigns	Primarily focused on the Finnish market No public pricing - projects are custom-quoted
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.

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