Kaeda
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Doesn't scale. On purpose.

They refused the thing every investor asks for, and the refusal is why the business works.

23 teardowns · $1M–$10M
Club Caddie
Vertical golf ERP · $9M ARR · Michigan
SaaS

One ERP that runs the whole golf course.

$9M ARR
Stated · 2025, founder-stated
Crowded field; most scale came post-buyout.
The edge: He owns golf courses and had built and sold a golf-tech app before, so he knew the buyer well.
Open →
Balsamiq
Wireframing SaaS · bootstrapped since 2008
SaaS

Ugly-on-purpose wireframes designers keep paying for

$6.58M
Stated · 2024 revenue
Figma now does low-fi; TAM is shrinking
The edge: Wireframes look hand-drawn on purpose: every mockup is instantly recognizable and markets the tool for free.
Open →
TitleCapture
Vertical SaaS · Title insurance · US
SaaS

Branded title-quote apps that win agent loyalty

$5.6M
Estimate · ARR · founder-reported '24
Finite US title niche, cyclical with housing.
The edge: One underwriter's sales manager introduced them to every affiliated agency — 1 to 150 customers in year one, zero CAC.
Open →
Boardroom Insiders
Data · USA · sold for $25M (2022)
Data

Deep C-suite dossiers, licensed to B2B sales teams.

$5M
Stated · ARR at $25M exit
Hand-written data; scaling means hiring.
The edge: 14 years and a 25-person research team built 29,000 deep exec profiles rivals couldn't scrape or fake.
Open →
Ebsta
Bootstrapped revenue intelligence
SaaS

Rivals raised $1B+. Ebsta bootstrapped to $5M ARR.

$5M ARR
Estimate · ARR, 2024 · bootstrapped
Small budget against billion-dollar rivals.
The edge: Bootstrapped to about $5M ARR with 30 people while Gong, Clari and Outreach burned $1B+ on the same buyer.
Open →
M2M in Motion
Fleet GPS for small truckers
SaaS

Financed the GPS box so small fleets paid $0 upfront

$5M+
Stated · revenue at 2021 exit
Thin software moat vs funded giants' scale
The edge: Sold to small fleets the funded giants ignored; financed the GPS box so a 5-truck shop paid nothing to start.
Open →
REsimpli
USA · 2016 · bootstrapped vertical SaaS
SaaS

A real-estate wholesaler built the CRM he needed.

$5M+ ARR
Estimate · 2024, self-reported
One niche, US-only, tied to the flip cycle.
The edge: All-in-one OS for real-estate investors: CRM, dialer, skip tracing, direct mail, accounting — one login, one bill.
Open →
WeSuite
Vertical SaaS · Security-install CPQ · USA
SaaS

Quoting software for security-system installers.

$5M
Stated · 2024 revenue · cash exit
Tiny niche: 16 years to reach $5M.
The edge: Ex-integrators built the one quoting tool that models security installs, recurring monitoring and commissions.
Open →
hellotax
EU VAT compliance · bootstrapped
SaaS

Two Amazon sellers turned EU VAT pain into a SaaS

$4.2M
Estimate · est. revenue, 2025
Human accountant layer caps scaling.
The edge: Amazon stores your stock abroad, so EU law forces you to VAT-register there — no threshold, no opt-out.
Open →
ClickClaims
Vertical SaaS · P&C insurance claims
SaaS

The claims desk for storm-chasing insurance adjusters.

$4M+
Stated · ARR · 50 accounts
Tiny buyer pool, revenue rides the storms.
The edge: A claims adjuster who'd already built claims software inside a big firm — he knew the workflow before line one.
Open →
Valkre
Account-planning software for enterprise key-account teams
SaaS

The account plan, out of PowerPoint and into software.

Beyond $4M ARR
Stated · KAM software subscriptions
Slow category to build; the niche is small.
The edge: Valkre wraps the SAMA method KAM teams already train on, so enterprises trust the tool before the demo.
Open →
ZenMaid
Vertical SaaS · maid services · USA
SaaS

Booking software for maid services, and only them.

$200K MRR
Stated · founder-stated, 2024
Tiny, price-sensitive niche caps the ceiling.
The edge: He ran a maid service before building the tool, so he knows the exact workflows generic field-service apps miss.
Open →
Moraware
Vertical SaaS · countertop shops · USA
SaaS

The default software for countertop fabrication shops.

$2.2M
Estimate · ARR, Latka est. 2025
Countertop-only market caps growth.
The edge: A co-founder's brother ran a countertop shop, so v1 was built inside a real fabricator's daily workflow.
Open →
Alosant
White-label resident apps for master-planned communities
SaaS

White-label the app; every community renews

$2M ARR
Stated · ARR, bootstrapped · 2022
Small TAM: master-planned communities only.
The edge: White-labeled under each community's brand on 3-5 year deals, so residents adopt fast and developers rarely churn.
Open →
SparkToro
Audience-research data · Seattle · 2018
Data

The moat was the founder's audience, not the code.

$1.5M
Stated · ARR · yr-2 (2022)
⚠ Scale capped
niche market by design
The edge: The founder arrived with a ready-made marketing audience, so 200 people sign up free every day - zero ad spend.
Open →
Ministry of Testing
Community · UK · since 2007
Community

Where software testers gather, learn, and get hired.

$1.2M
Stated · a year (2019, stated)
Revenue leans on in-person conferences.
The edge: A free 2007 forum grew into testing's biggest community; she monetized the trust later via conferences and courses.
Open →
TutorCruncher
UK · $0 VC · 2013
SaaS

Scheduling, billing and payments for tutoring firms.

$1.2M
Stated · ARR (2021)
Small niche; limited by tutoring-agency TAM.
The edge: The co-founder is Pydantic's creator — that engineering caliber let a bootstrapped team out-build clunky incumbents.
Open →
Zen Arbitrage
Book-arbitrage SaaS · sold 2022
SaaS

He built the audience, then sold them the tool.

$90K/mo
Stated · MRR at 2022 exit
Rides Amazon's price gap; guru-led.
The edge: Built the buyers before the product: years of book-arbitrage courses meant the $97/mo tool launched to a waiting list.
Open →
AuditMiner
Omaha, US · 2019 · vertical SaaS
SaaS

She audited 401k plans for 15 years, then automated it

$1M ARR
Stated · ARR (2022, last stated)
Only US CPA firms doing ERISA plan audits
The edge: She had done the job by hand for 15 years, so she knew which steps were worth parsing and which auditors would pay.
Open →
BoosterHub
Bootstrapped vertical SaaS · USA
SaaS

One login replaces the 18 a booster club juggles.

$1M
Stated · ARR, founder-stated
Tiny niche; volunteer buyers churn yearly.
The edge: She was the exact customer — a booster-club president — with 30 years of high-touch sales behind her.
Open →
RepairDesk
Lahore - repair-shop POS - bootstrapped
SaaS

The POS a phone-repair shop runs all day on.

$1M+ ARR
Stated · founder-stated (2020)
Finite, softening repair-shop TAM.
The edge: Built by a founder off his brother's repair counter - parts, IMEI and warranty flow fit how shops really run.
Open →
Traffic Think Tank
Gated SEO community · sold to Semrush
Community

3 SEO influencers rented out their group chat.

$1M ARR
Stated · sold to Semrush, 2023
Format is free to copy; the audience isn't.
The edge: Two founders spent a decade building a 40,000 SEO email list. Launch day was warm: 100 paid seats gone in 72 hours.
Open →
UDisc
Bootstrapped since 2012 - Minnesota, USA
SaaS

The scoreboard for 90% of disc golfers.

1.4M
Stated · yearly app users
Niche ceiling: about 1.4M players, $30/yr.
The edge: Gave scorekeeping away free for a decade; the course database it created is now a moat no rival can buy.
Open →