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Kai Lindemann

Founder & CEO, Foundersbase

Kai is the founder of Foundersbase, the network where founders find co-founders, early teammates and their first supporters. He writes about co-founder matching, early-stage team building and the unglamorous mechanics of getting a startup off the ground.

Articles by Kai Lindemann

Equity & Legal6 min read

Startup Dilution Explained for Founders

Dilution isn't losing your company — it's owning a smaller slice of a bigger pie. How each round, the option pool, and SAFEs dilute founders, with a worked example.

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Kai Lindemann · Sep 12, 2026

How to Handle Co-Founder Conflict Before It Kills You

Co-founder conflict sinks more startups than the market ever does. Here is how to spot the root causes early, prevent them, resolve live fights, and part ways cleanly.

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Kai Lindemann · Sep 9, 2026
Startup Basics7 min read

How to Start a Startup While Working Full-Time

Start a startup while working full-time without blowing up your finances or your job: the contract landmines, what to validate first, and when to quit.

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Kai Lindemann · Sep 3, 2026
Hiring & Team4 min read

How to Find and Work With Startup Advisors

When a startup needs advisors, how to find the right ones, how much equity to give, and how to structure the relationship so advisors actually move the needle.

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Kai Lindemann · Aug 28, 2026
Fundraising4 min read

How to Raise a Seed Round for Your Startup

A founder's playbook for raising a seed round: how much to raise, the traction investors expect, running a tight process, and closing the round cleanly.

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Kai Lindemann · Aug 7, 2026
Fundraising4 min read

What Is a Term Sheet? A Founder's Guide

What a startup term sheet is, the clauses that actually matter — liquidation preference, board control, option pool — and how to negotiate the terms that bite later.

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Kai Lindemann · Aug 4, 2026
Fundraising5 min read

How to Value a Pre-Seed or Seed Startup

How startup valuation really works at pre-seed and seed: why early valuations aren't math, the methods investors use, what sets the number, and how to negotiate it.

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Kai Lindemann · Aug 1, 2026
Equity & Legal4 min read

Startup Cap Tables Explained (for Founders)

What a cap table is, how startup ownership and dilution work across rounds, how option pools and SAFEs affect it, and how to keep a clean cap table from day one.

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Kai Lindemann · Jul 23, 2026
Fundraising4 min read

What Is a Convertible Note? A Founder's Guide

What a convertible note is, how it works, the discount and valuation cap explained, and how convertible notes compare to SAFEs for early-stage startup fundraising.

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Kai Lindemann · Jul 20, 2026

How to Build a Go-to-Market Strategy

A founder's guide to go-to-market: defining your ideal customer, choosing a motion and channel, nailing positioning, and avoiding the spread-too-thin GTM trap.

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Kai Lindemann · Jul 5, 2026
Equity & Legal4 min read

Startup Vesting and Cliffs, Explained

What startup vesting and the one-year cliff mean, why every founder and early hire needs them, standard schedules, and the acceleration terms worth understanding.

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Kai Lindemann · Jul 2, 2026
Equity & Legal4 min read

Employee Stock Options (ESOPs), Explained

How startup stock options work for early employees: option pools, strike price, vesting, exercising, and what an offer of equity is actually worth before you accept.

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Kai Lindemann · Jun 26, 2026

How to Find Product-Market Fit (and Know It)

What product-market fit really means, the signals that prove you have it, how to measure it, and what to do before you have it — a practical founder's guide.

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Kai Lindemann · Jun 23, 2026
Fundraising5 min read

How to Raise a Pre-Seed Round for Your Startup

A founder's guide to raising a pre-seed round: how much to raise, what investors expect, SAFEs versus equity, valuation, and running the round as a tight process.

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Kai Lindemann · Jun 12, 2026

How to Find a CTO for Your Early-Stage Startup

How to find a CTO for your startup: co-founder versus hire versus fractional, where technical leaders actually look, how to vet them, and what equity to offer.

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Kai Lindemann · Jun 11, 2026

Best Platforms & Apps to Find a Co-Founder

The best platforms and apps to find a co-founder in 2026, what each one is good at, and how to actually get a reply once you are on them — a founder's field guide.

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Kai Lindemann · Jun 9, 2026
Equity & Legal4 min read

How to Split Equity Between Co-Founders: A Framework

Equal or earned? A clear framework for co-founder equity splits in 2026 — contribution factors, vesting, cliffs and the founder agreement that keeps it fair.

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Kai Lindemann · May 27, 2026

How to Find a Technical Co-Founder (Without Begging)

A practical, founder-tested playbook for finding a technical co-founder in 2026: where to look, how to pitch, how to run a trial project and when to commit.

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Kai Lindemann · May 20, 2026
Equity & Legal5 min read

What Is a Co-Founder Agreement (and Do You Need One)?

What a co-founder agreement covers — equity, vesting, roles, IP and exits — why every founding team needs one, and how to put it in place before trouble.

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Kai Lindemann · Apr 4, 2025
Equity & Legal5 min read

Salary vs Equity: Startup Compensation Explained

How to pay early team members when cash is scarce: the salary-versus-equity trade-off, typical ranges, vesting, and a framework for fair startup offers.

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Kai Lindemann · Mar 15, 2025

How to Choose the Right Co-Founder for Your Startup

The qualities that matter, the questions to ask, and how to vet a potential co-founder's compatibility before you split equity and sign anything.

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Kai Lindemann · Feb 27, 2025

How to Find a Co-Founder: A Step-by-Step Playbook

Where to meet potential co-founders, how to pitch without begging, and how to test fit before you commit — a practical playbook for finding a startup partner.

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Kai Lindemann · Oct 23, 2024
Fundraising5 min read

How to Attract Investors to Your Startup

What investors actually look for in early-stage founders, how to build credibility before you raise, and the traits that turn a pitch into a real check.

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Kai Lindemann · Oct 1, 2024