Rubén Domínguez Ibar

Co-Founder

Spain6 yrs 2 mos experience

Highly Stable

Key Highlights

Founder of a top-ranked tech newsletter.
Experienced angel investor in pre-seed startups.
Expert in venture capital and business development.

Stackforce AI infers this person is a Venture Capitalist with expertise in startup investments and media.

Contact

Skills

Core Skills

Venture CapitalBusiness DevelopmentInvestment Valuation

Other Skills

AccountingAdaptabilityAprendizaje automáticoC++CommitmentContinuous LearningCritical thinkingDeal SourcingDecision MakingEconomicsFinTechFinancial AnalysisFinancial modellingForecastingMachine Learning

About

Industrial Engineer turned tech early stage investor and builder of a media company. I’ve worked as a VC backing early and late stage startups, and now invest globally at pre-seed as a business angel, helping founders with distribution and go-to-market. I also write and run two of the leading tech newsletters for founders: ▪ The VC Corner (85k+ on Substack, 115k on LinkedIn): Actionable VC insights, fundraising strategies, and curated resources → Ranked #7 tech newsletter globally on Substack → Fastest-growing tech newsletter on Substack → Largest Substack in any category created by a Spaniard ▪ The Founders Corner (30k+ on Substack, co-written with Chris Tottman): Real-world tips and tactics from top founders

Experience

Various startups

Angel Investor

Jan 2025 – Present · 1 yr 2 mos · San Francisco Bay Area

Investing globally in pre-seed startups, helping founders with distribution and visibility
▪️Throxy (YC X25) - Vertical AI agents that automate the full sales funnel
▪️Cubic (YC X25) - AI powered code review platform
▪️Murphy - AI Powered Debt Collection
▪️QFEX (YC X25) - The 24/7 exchange for traditional financial markets
▪️Bloom (YC X25) - Build and share mobile apps in seconds
▪️Minerva Intelligence (YC X25) - AI to replace SMB bookkeepers
▪️Altan - Create projects by talking to AI
▪️Novoflow (YC X25) - AI employees that automate medical ops for clinics
▪️YouShift (YC W25) - The operating system for healthcare staffing
▪️Emblematic AI - Transforming Financial Ops with AI
▪️Klavis AI (YC X25) - Open source MCP integrations for AI applications
▪️Cua (YC X25) - Docker for Computer-use Agents

Deal SourcingFinancial AnalysisRisk ManagementVenture capitalInvestment valuation

Itnig - startup ecosystem

VC Investor

Jan 2025 – Jan 2025 · 0 mo · Barcelona

€15 M pre‑seed VC fund deploying €100 K–250 K checks
Founded by entrepreneurs; co‑founded/exited startups like SaaS unicorn Factorial
Runs Spain’s most listened-to entrepreneurship podcast

Venture capital

The vc corner

Founder

Nov 2023 – Present · 2 yrs 4 mos · Madrid, Community of Madrid, Spain

Helping founders raise capital, stay ahead, and truly understand venture capital.
I manage and write The VC Corner, a newsletter built to make startup life easier for founders and CEOs. With sharp insights, fundraising advice, and the best resources to use day-to-day.
85,000+ subscribers (50% US)
1M+ monthly reads
#7 biggest Substack tech newsletter in the world
#1 fastest growing tech newsletter on Substack
Largest Substack newsletter in any category created by a Spaniard
Read by founders, CEOs and VCs who want actionable content and resources that actually help.

Market ResearchFinancial AnalysisNegotiationDecision MakingBusiness DevelopmentVenture capital

Mundi ventures

VC Investor

Jan 2022 – Jan 2025 · 3 yrs · Madrid, Comunidad de Madrid, España

$500M AUM Global Venture Capital firm that invests in growth stage technology startups
Invested in 6 unicorns, including Wefox (Berlin), Bolttech (Singapore), Betterfly (Santiago), and Shift Technology (Paris)

Venture capital

Ladorian

Finance & Strategy

Jan 2021 – Jan 2021 · 0 mo · Madrid, Community of Madrid, Spain

Data-Driven Decision Support. Joined after Ladorian’s €5M Seed round led by Rakuten Capital and Endeavor Catalyst.

Endesa

Data Scientist

Jan 2020 – Jan 2020 · 0 mo · Madrid, Community of Madrid, Spain

Predictive Modeling for Energy Consumption & Revenue Optimization

Repsol

AI Research Engineer

Jan 2019 – Jan 2019 · 0 mo · Madrid, Community of Madrid, Spain · Remote

Quant Models for Commodity Trading

Real federación española de fútbol

Football Referee

Jan 2015 – Jan 2017 · 2 yrs

Refereeing from age 15 taught me how to lead in high-pressure situations, make confident decisions, and stay calm when everything around me was loud 😅