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Compare Closed:in vs Serpact

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

Closed:in

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
Serpact

Serpact

SEO & Organic Growth Website

Serpact is an internationally recognized SEO agency specializing in search engine optimization, content marketing, and website migration. With a 4.8 rating and over 95 reviews, they deliver data-driven strategies for competitive markets across the US, UK, and Europe.

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Feature Comparison

Attribute Closed:in Serpact
Category Cold Email Outreach SEO & Organic Growth
Rating -
Winner +4.5 higher
Location Utrecht Plovdiv Province, Bulgaria
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
  • Market Research
  • SEO
  • Backlink Management
  • International SEO
  • Link Building
  • Local SEO
  • Mobile SEO
  • SEO Consulting
  • Search Engine Marketing
  • Shopify SEO
  • Technical SEO
  • Wordpress SEO
  • Youtube SEO
  • Technical SEO audit and analytics
  • Content analysis
  • 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
  • Market Research
  • SEO
  • Backlink Management
  • International SEO
  • Link Building
  • Local SEO
  • Mobile SEO
  • SEO Consulting
  • Search Engine Marketing
  • Shopify SEO
  • Technical SEO
  • Wordpress SEO
  • Youtube SEO
  • Technical SEO audit and analytics
  • Content analysis
Industries
SaaS fintech recruitment agencies e-commerce financial services
Ecommerce Fintech Gambling IT Media & Entertainment
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
  • Deep expertise in technical SEO and website migration, with over 75 migrations completed.
  • Proven track record in competitive international markets (US, UK, DACH, Japan, etc.).
  • Specialized in content marketing, creating over 100 full strategies per year with
Cons
  • No client reviews available on Clutch or G2
  • Small team (1-10 employees) may limit capacity for large-scale campaigns
  • Focus is primarily on SEO and content - no paid advertising or full-service digital
Website Visit Site Visit Site
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