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Compare Closed:in vs Belkins

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

Belkins

B2B Lead Generation Website

Belkins is a globally recognized B2B lead generation and appointment setting agency. They specialize in helping businesses generate high-quality leads and accelerate sales through personalized omnichannel outreach.

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Feature Comparison

Attribute	Closed:in	Belkins
Category	Cold Email Outreach	B2B Lead Generation
Rating	-	Winner +5.0 higher
Location	Utrecht	Dover, Delaware, USA
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 Appointment Setting Cold Email Outreach LinkedIn Lead Generation Sales Development Lead Research CRM Consulting (HubSpot) Sales Enablement Account-Based Marketing	Cold email campaign design & ops Prospect sourcing & enrichment (Clay stacks) Deliverability engineering & inbox landing Reply qualification workflows & appointment setting Template + sequence personalization at scale Appointment Setting Cold Email Outreach LinkedIn Lead Generation Sales Development Lead Research CRM Consulting (HubSpot) Sales Enablement Account-Based Marketing
Industries	SaaS fintech recruitment agencies e-commerce financial 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	-
Cons	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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