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Compare Sigma Solutions vs ROI Amplified

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

Sigma Solutions

B2B Lead Generation Website

Sigma Solutions is a B2B online marketing agency that helps producing and trading companies achieve measurable growth through their internet channel. They provide strategic guidance, implementation, and ongoing management of websites, webshops, and apps.

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ROI Amplified

Cold Email Outreach Website

ROI Amplified is a retainer-based full-service digital marketing agency offering Google Ads, SEO, social media, HubSpot management, website design, and email marketing. They have managed over $100 million in ad spend and generated $1 billion+ in sales for clients across healthcare, legal, real estate, e-commerce, and professional services.

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Feature Comparison

Attribute	Sigma Solutions	ROI Amplified
Category	B2B Lead Generation	Cold Email Outreach
Rating
Location	Alkmaar, North Holland, Netherlands	Tampa, Florida
Services	PPC Content Marketing SEO Social Media Marketing Web Development Lead Generation Marketing Automation Data Analytics Inbound Marketing Email Marketing Google Ads & PPC Management Social Media Advertising & Strategy SEO & Local SEO HubSpot Management & CRM Implementation Website Design & Development Email Marketing & Automation Display Ads Retargeting and Remarketing Search Engine Marketing WordPress SEO	PPC Content Marketing SEO Social Media Marketing Web Development Lead Generation Marketing Automation Data Analytics Inbound Marketing Email Marketing Google Ads & PPC Management Social Media Advertising & Strategy SEO & Local SEO HubSpot Management & CRM Implementation Website Design & Development Email Marketing & Automation Display Ads Retargeting and Remarketing Search Engine Marketing WordPress SEO
Industries	Automotive Construction Consumer Goods IT	B2B Services Ecommerce Manufacturing Healthcare Legal Real Estate Professional Services
Pros	Over 20 years of experience in B2B online marketing since 2003 Full-service agency covering strategy, implementation, and maintenance Strong focus on measurable ROI and sustainable growth for clients Serves both small and mid-sized businesses with project budgets starting at $2,500	Transparent, data-driven approach with no long-term contracts and full reporting. HubSpot and Adobe Marketo partners, enabling enterprise-level marketing automation. In-house team of certified experts across all digital marketing channels.
Cons	Primarily focused on the Netherlands market, limiting geographic reach No client reviews or testimonials publicly available on Semrush profile	Small team (1-9 employees) may limit capacity for very large or simultaneous projects. Retainer-based pricing may not suit businesses looking for one-off or project-based
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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