Dex
YC S19San Francisco, US · Founded 2019 · 7 employees · Hiring · 5 known investors
Dex is a relationship management tool that provides an intuitive, modern rolodex for organizing and maintaining personal and professional contacts. It eliminates manual data entry and tedious processes, designed as a lightweight alternative to spreadsheets and sales CRMs.
Also known as Dana · Dex (was Dana)
Founders & leadership· Y Combinator alumni (S19)
Dex was founded in 2019 by Kevin Sun.
KS
Kevin SuninFounder
J
JackFounding Engineer
O
OmarFounding Engineer
J
JossUX/UI Designer
T
TomásMobile Developer
Investors · 5
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Funding
SEC filings, press & company announcements$5.3M disclosed across 1 of 2 rounds · 2025–2026
- $5.3Mseed roundApr 2026 · 4 sources
Notion Capital (lead), a16z Speedrun, Concept Ventures
Source ↗ - Undisclosed amountPre-SeedApr 2025Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Competitors · 5
by search overlap
BetterUp99 shared keywordsBetterUp provides an AI-powered coaching and professional development platform that helps organizations support employee growth and wellbeing. The platform serves enterprises and their employees through behavioral science-backed coaching and talent management tools.
Zapier80 shared keywordsZapier provides a platform for connecting AI models and agents to workflows and business applications, enabling teams to automate tasks across over 9,000 apps without coding. The platform serves enterprises, operations teams, and businesses of all sizes looking to deploy AI-driven automation for lead capture, customer support, employee onboarding, and other business processes.
Folk list view74 shared keywordsfolk is a CRM that captures relationship context and uses AI assistants to automate sales busywork like follow-ups, relationship recaps, company research, and email outreach workflows. It serves sales and business development teams managing deals and contacts.
Harvard Business Review’s (HBR)73 shared keywordsHarvard Business Review (HBR) publishes articles and content on management, leadership, and business topics for professionals and organizations.
Streak60 shared keywordsStreak is a CRM built directly into Gmail that helps recruiters, fundraisers, sales representatives, and business operators manage customer relationships and workflows without leaving their inbox. The company offers email tracking, task management, pipeline customization, and mail merge features designed for teams already using Gmail.
Companies competing with Dex for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Dex do?
- Dex is a relationship management tool that provides an intuitive, modern rolodex for organizing and maintaining personal and professional contacts. It eliminates manual data entry and tedious processes, designed as a lightweight alternative to spreadsheets and sales CRMs.
- Who founded Dex?
- Dex was founded by Kevin Sun in 2019.
- Who are Dex's investors?
- Dex's investors include Amino Capital, Concept Ventures, Y Combinator, A16Z Speedrun, Notion Capital.
- How much funding has Dex raised?
- Dex has disclosed $5.3M raised across 1 of its 2 known rounds.
- Where is Dex headquartered?
- Dex is headquartered in San Francisco, US.