OUR WORK
Our work as a product engineering company
BrainStormers is a product engineering company: a technical and product consultancy run by its founders, Roger Grekos and Thanos Gkanas, for startups and scaling companies. We build for some of these companies today, and others are past engagements.
NOW
Current work
The companies we work with today. The scope differs on each, from strategy alone to product and engineering together.
Mayo Law
Cross-border law firm in Toronto and New York
We handle strategy and growth for a firm that practises immigration, business law, white collar defence and compliance.
Illumant
Penetration testing and security compliance firm
Engineering, and help with scaling, for a Palo Alto security firm that runs penetration tests, security assessments and compliance work.
AllOps
AWS cloud consulting and DevOps services company
AllOps is an AWS consulting and DevOps company with offices in Mostar, Sarajevo and Zagreb, and we work with it on product and engineering.

Twizzlo
Appointment booking software for service businesses
Product, engineering and scale for booking software used by barbershops, salons, spas and other appointment businesses.
EARLIER
Past engagements
Earlier product and engineering work for a crypto marketing company and for publications covering news, reviews and reference content.
Find.co
Performance marketing company for the crypto sector
We worked with Find.co on product and engineering; that engagement has ended.
CCN
Crypto, business and finance news publication
We worked on product and engineering for this news publication, which covers cryptocurrencies, business, finance and technology for a global audience.
CryptoManiaks
Crypto product reviews, comparisons and beginner guides
A past product and engineering engagement with a site that reviews and compares crypto exchanges and wallets and teaches beginners.
Webopedia
Technology, finance and crypto reference site
Past product and engineering work for an educational reference on technology, finance and cryptocurrency.
Salon
News, politics and culture publication
Our past engagement with Salon, a US news and commentary publication covering politics, culture, food, science and health, was product and engineering.
HOW IT RUNS
How we run an engagement as a product engineering company
The steps, the services and the people behind the work.
FAQ
Questions about working with us
What founders ask us most before a first call.
What does a product engineering company do?
A product engineering company takes a product from an idea to working software and keeps improving it. It decides what to build, designs it, writes the code and runs it in production. Product engineering companies differ in how much of that they cover. BrainStormers covers both product and engineering, and you can hire either one alone.
Who does the work on an engagement?
One of the two founders leads every engagement. Roger Grekos leads product and Thanos Gkanas leads engineering, and both work on combined product and engineering projects. The founder who leads your engagement is the person you talk to from the first call to the handover.
What stage of company do you work with?
Most of our clients are startups, from pre-seed to Series A. Scale-ups and established companies work with us too, for fractional leaders, audits and short projects. The stage changes where we start: an early team usually needs an idea tested or a first version built, and a later one a second opinion or extra senior hands.
How does an engagement start?
With a short call, followed by a written quote before any work begins. The work itself opens with the Audit step: we look at what exists before changing anything and give you a written, ranked view of what to do first.
NEXT STEP
Tell us what you are building
Start with a 20-minute call. Prefer to write? Tell us about your project and we reply with a next step.