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Compare Closed:in vs The SEO Works

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

The SEO Works

B2B Lead Generation Website

The SEO Works is a digital marketing agency specialising in SEO, PPC, and performance-led search marketing. Founded in 2009, they work with businesses internationally from SMEs to enterprise brands, with specialist capability in AI-led search and answer engine optimisation.

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Feature Comparison

Attribute	Closed:in	The SEO Works
Category	Cold Email Outreach	B2B Lead Generation
Rating	-	Winner +4.5 higher
Location	Utrecht	Sheffield, England, United Kingdom
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 AI Search Optimization LLM optimization Advertising Display Ads PPC Programmatic Advertising Retargeting and Remarketing Amazon Marketing Amazon Advertising Amazon SEO Content Marketing Content Strategy Content Syndication Copywriting Data Analytics Machine Learning and AI Marketing Advice Inbound Marketing Lead Generation SEO Backlink Management International SEO Link Building Local SEO Mobile SEO SEO Consulting Search Engine Marketing Shopify SEO Technical SEO Wordpress SEO Youtube SEO Social Media Marketing Content Creation Facebook Advertising Instagram Marketing Web Development Digital Design Graphic Design Logo Design UX Design Web Design Website Maintenance 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 AI Search Optimization LLM optimization Advertising Display Ads PPC Programmatic Advertising Retargeting and Remarketing Amazon Marketing Amazon Advertising Amazon SEO Content Marketing Content Strategy Content Syndication Copywriting Data Analytics Machine Learning and AI Marketing Advice Inbound Marketing Lead Generation SEO Backlink Management International SEO Link Building Local SEO Mobile SEO SEO Consulting Search Engine Marketing Shopify SEO Technical SEO Wordpress SEO Youtube SEO Social Media Marketing Content Creation Facebook Advertising Instagram Marketing Web Development Digital Design Graphic Design Logo Design UX Design Web Design Website Maintenance Wordpress Design
Industries	SaaS fintech recruitment agencies e-commerce financial services	B2B Services Education Institutions Fintech Healthcare & Hospital 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	Strong client satisfaction with a 4.7 rating and numerous success stories showing
Cons	No client reviews available on Clutch or G2 Small team (1-10 employees) may limit capacity for large-scale campaigns	Pricing is not publicly disclosed, which may be a barrier for budget-conscious buyers. Primarily UK-based with limited local presence in other regions, though they serve
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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