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Harmonic Tech Stack

Startup discovery database for investors and GTM teams

Technology, Information and Internet New York 51–200 employees Founded 2020 Privately Held
harmonic.ai LinkedIn

Harmonic operates a startup intelligence platform used by venture investors and go-to-market teams to surface and evaluate emerging companies. The tech stack—React, TypeScript, Python, Claude, and RAG—signals a modern, AI-forward approach to data retrieval and ranking. Active hiring across engineering and sales, paired with projects focused on GTM process improvement and sales optimization, suggests the company is scaling customer acquisition alongside product reliability work.

Tech Stack 12 technologies

Core StackReact TypeScript Greenhouse RAG Python JavaScript Cursor LinkedIn Sales Navigator LinkedIn Claude Codex LangGraph

What Harmonic Is Building

◆Challenges

  • Undiscovered startup opportunities
  • Improving gtm processes
  • Driving critical revenue
  • Reliability issues
  • Performance issues with large datasets
  • Slow data visualizations
  • Improving sales process
  • Streamlining investment workflow
  • Balancing speed of growth and long-term profitability
  • Improving conversion funnels

▲Active Projects

  • Improving gtm processes
  • Prototypes
  • Engaging customers with personalized messaging
  • Core reliability fixes
  • Performance optimization
  • Monitoring and observability
  • Improving sales process
  • Sourcing new opportunities in target vc accounts
  • Building recruiting infrastructure
  • Scaling talent function

Hiring Activity

Accelerating15 roles · 9 in 30d

Department

Engineering
5
Sales
5
HR
2
Marketing
1

Seniority

Mid
5
Senior
3
Junior
2
Staff
2
Lead
1
Company intelligence

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About Harmonic

Harmonic maintains a comprehensive database of startups and founders, serving as a discovery and due-diligence tool for institutional investors and corporate innovation teams. The product is built on a foundation of web data aggregation and ranking, enhanced with large-language-model capabilities for deeper company analysis. Customers include venture firms conducting deal sourcing and corporate GTM teams evaluating partnership and acquisition targets. Founded in 2020 and based in New York, the company operates a 51–200-person organization with ongoing expansion in engineering and sales roles.

HeadquartersNew York
Company Size51–200 employees
Founded2020
Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does Harmonic use?

Harmonic's primary stack includes React and TypeScript for the frontend, Python for backend and data processing, Claude and RAG for AI-powered search and retrieval, and LinkedIn APIs (Sales Navigator and standard LinkedIn) for data enrichment.

What is Harmonic working on?

Current priorities include improving GTM and sales processes, core reliability fixes, performance optimization for large datasets, sourcing new opportunities in target accounts, and scaling talent and recruiting infrastructure.

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