Portfolio · Est. Derry, NH · 2026 UPDATE

Three companies. One operator.

Founder, operator, and mentor out of southern New Hampshire. Arthur started with a single bucket and a mobile detail rig, then stacked Avid Auto Detailing, Vorenza Rentals, and Cohostly on top of it — and publishes the real playbook for the next generation of operators.

BasedDerry, NH
Since2022
StackRent · Detail · Software
01Ventures

Three businesses. One operator.

A service stack built in southern New Hampshire — rent the car, detail the car, run the fleet.

01 · MOBILE AUTO DETAILING · DERRY, NH

Avid Auto Detailing

New Hampshire's highest-rated mobile detailer. Paint correction, full details, and ceramic coatings — delivered in your driveway by the founder himself. The business Arthur built from a single bucket to a fleet-serving operation.

SINCE · 2022
4,000+
Vehicles
10yr
Warranty
5.0
Avg. rating
NH·MA
Service area
Flagship Mobile service Paint correction Ceramic coating
avidautodetailing.com
02 · PREMIUM CAR RENTAL

Vorenza
Rentals

New Hampshire's rental service for the rest of us. Economy to luxury, 18+ welcome, airport delivery — five-minute handoff instead of a counter line.

2023
18+
Min. Age
5min
Handoff
24/7
Support
Rental fleet Airport delivery MHT / BOS
vorenzarentals.com
03 · SAAS · FLEET CO-HOSTING

Cohostly

Management software for vehicle co-hosts. Trips, cleaning, inspections, and payouts — built by operators for operators. Ship-date scoped, currently in private beta.

2025
BETA
Stage
B2B
Market
API
First
Software For operators New
cohostlyhq.com
Arthur Fandunyan
02Story

From a polishing cloth to a rental fleet.

Arthur started Avid Auto Detailing out of a single bucket and a mobile rig, driving between driveways across southern New Hampshire. The obsession wasn't the cars — it was the standard. Nothing leaves looking almost done.

That reputation built the fleet. Customers kept asking where to rent something clean, on their terms. So Vorenza Rentals opened on Central St in Derry — 18+ welcome, same-day delivery, the same obsessive handoff every time.

With two operations running, the software he needed didn't exist. He built it. Cohostly is the co-hosting platform for vehicle operators who refuse to run their business in a spreadsheet.

Founder · Arthur Fandunyan · Derry, NH
03Journey

The long road
so far.

A working entrepreneur's timeline — from first customer to third company to a YouTube channel teaching the next generation.

2022
Arthur detailing in the early days of Avid Auto Detailing
Avid · Derry, NH · 2022
Chapter 01 · Avid begins

One bucket, one car, one standard.

Launches Avid Auto Detailing as a solo mobile operation out of Derry, NH. Picks up his first paying customers in neighbor driveways — and learns that word of mouth is the best marketing budget there is.

2023
Chapter 02 · Certified

Elite auto care, not a wash.

Earns professional ceramic coating certification and multi-year warranties. Paint correction becomes a core offer — Avid stops being a "wash" and starts being the name neighbors trade for cars worth protecting.

2023
The Vorenza team and rental fleet in Derry, NH
Vorenza · 15 Central St, Derry
Chapter 03 · Vorenza launches

The rental fleet hits the road.

Opens Vorenza Rental Cars at 15 Central St, Unit B in Derry. Economy to luxury, flexible scheduling, 18+ welcome — a deliberate rebellion against the 21+ counter-line experience.

2024
Succeed With Arthur on YouTube
YouTube · @ArthurFandunyan
Chapter 04 · Content

Succeed With Arthur goes live.

Starts publishing on YouTube and Instagram, documenting the real P&L behind rental car operators. No gurus, no watches — just actual numbers, playbooks, and the mistakes he wishes someone had warned him about.

2025
Avid Auto Detailing 5.0-star customer reviews
Chapter 05 · Avid scales

4,000 vehicles. Five-star rating held.

Avid crosses 4,000 vehicles detailed across NH and MA with a perfect average rating and a commercial mobile rig serving the Merrimack Valley.

2025
Chapter 06 · Cohostly

From operator to builder.

Starts Cohostly — a vehicle co-hosting management platform — after hitting the limits of spreadsheets and stitched-together SaaS. Goes into private beta with a short list of rental operators he's mentored.

2026
Chapter 07 · The stack

Three companies, one playbook.

The mobility stack is live: rent a car (Vorenza), detail a car (Avid), manage the fleet (Cohostly). Mentoring online continues — now with receipts.

04Mentorship

Teaching the rental playbook in public.

Between fleet pickups and detail bookings, Arthur publishes his actual operating playbook — the margins, the mistakes, the scripts, the software. Built for first-time rental operators who want a shortcut that isn't a scam.

Let's work together

Got a car.
Got a fleet. Got a call?