Our Success Stories
From $20M ARR email engines to AI video platforms, discover how we've helped visionary founders build exceptional products.
Trusted by Industry Leaders
Featured Projects
Deep dives into our most impactful collaborations
Instantly.ai
AI Email Engine Powering $20M ARR
We built their core AI email engine from the ground up, enabling intelligent email automation at scale. Our team developed the machine learning algorithms that power smart email sequencing, deliverability optimization, and automated follow-ups. Today, Instantly.ai generates over $20M in annual recurring revenue and serves more than 50,000 users worldwide, processing over 10 million emails daily.
Kalpa.com
AI Video Generation & Conversational AI
We power Kalpa's cutting-edge AI-based video generation and lip-syncing technology, creating hyper-realistic video content at scale. Our team is currently developing a revolutionary conversational AI project that combines natural language processing with real-time video synthesis. Founded by Alykhan, who previously sold his startup for $65M, Kalpa represents the future of AI-generated media.
Permission.io
AI-Driven Personalization & Engagement
We built comprehensive AI-driven personalization and engagement systems that transformed how Permission.io targets and engages users. Our solutions significantly enhanced ad performance by 3x through intelligent user profiling, behavioral analysis, and real-time content optimization. The platform now leverages Web3 technology to create a more transparent and rewarding advertising ecosystem.
What Our Clients Say
Hear from industry leaders who trusted us with their vision
Eddie
Former Director of Engineering at Box ($4.74B) & Engineering Manager at Uber
"Rizer helped build my startup with the same engineering excellence I experienced at Box and Uber. Their team delivers enterprise-grade solutions."
Jeff
Ex-Director of Engineering at Permission.io, previously at Microsoft
"The technical depth and AI expertise Rizer brings is exceptional. They understand both the technology and the business impact."
Alykhan
CEO, Kalpa.com – Sold his last startup for $65M
"After a $65M exit, I know what excellence looks like. Rizer delivers it consistently. They're not just developers—they're true partners."
Spencer
Founder, Median.com – Running $300k ARR SaaS
"Rizer helped us scale from idea to $300k ARR. Their full-stack expertise and startup mindset made all the difference."
Kiril
CTO, Edaider.com – Leading Sweden's largest EdTech platform
"As Sweden's largest EdTech platform, we needed a team that could handle scale. Rizer exceeded our expectations at every turn."
Yoav
CEO, Stads.io – Platform used by top FIFA teams
"When top FIFA teams trust your platform, you can't afford mistakes. Rizer built the robust infrastructure that makes it all possible."
Video Testimonials
Watch our clients share their experience working with Rizer
Yoav
Stads.io
Spencer
Median.com
Kiril
Edaider.com
Eddie
Ex-Uber
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