Greyfeld Partners
We buildrevenue engines.
We don't advise from the sidelines. We embed inside your company and build the revenue engines — AI systems, pricing models, go-to-market machines — that generate predictable, compounding growth. You own every system we build. Our fees are performance-tied because we only win when you do.
Selective portfolio — every client gets our full capacity
Numbers that speak for themselves.
We deliberately limit our portfolio. Every client gets the full operating capacity of our senior team — not a diluted version of it.
World-class strategy. AI-powered systems. Founder-level execution. We embed in your team, build the system, hand you the keys — and the problem stays solved.
We've been in your shoes — building companies from scratch, raising capital, hiring teams, and staring at revenue charts that needed to go up and to the right. We started Greyfeld Partners because we saw too many brilliant companies fail not from lack of vision, but from lack of the right operational partner. Every engagement we take is personal. Your growth is our growth — a significant portion of our fees is performance-based, so our incentives are fully aligned with yours.
Why We Do ThisPricing, go-to-market, financial modeling, marketplace design, operational restructuring — every engagement gets the depth it deserves. We don’t spread thin. We go all-in on yours.
What We Do
The 10 highest-impact projects our clients hire us for.
Client names are confidential. Their results speak for themselves.
Revenue Architecture
Most requestedYour pricing is leaving money on the table.
We redesign your entire revenue engine — pricing tiers, packaging, monetization strategy, and unit economics — so every customer segment generates maximum margin. Built for companies preparing for their next raise or seeking profitability.
Processing $2B in annual volume but margins were collapsing quarter over quarter. The board was questioning the path to profitability.
Forensic analysis of 12,000 merchant accounts revealed that 68% of volume came from merchants on legacy pricing tiers negotiated during early growth — tiers that were now below cost-to-serve. The pricing architecture had never been redesigned post-scale.
Rebuilt the entire pricing architecture: introduced value-based tiers segmented by merchant size and transaction profile, designed a migration playbook with 90-day grandfather clauses, and implemented dynamic interchange-plus pricing for enterprise accounts.
Net revenue tripled in 14 months. EBITDA-positive 6 months ahead of plan. Merchant churn during migration was only 3.2% — well below the 12% industry benchmark.
“They forensically analyzed 12,000 merchant accounts and rebuilt our entire pricing architecture. Net revenue tripled in 14 months — and we hit EBITDA-positive 6 months ahead of plan.”
— CFO, Market-Leading Payments Platform (Series C, Southeast Asia)
Boutique by choice.
“We deliberately limit our portfolio so every client gets the depth of attention that drives outsized results. We don't compete on scale — we compete on the value we create inside each engagement.”
Skin in the Game
Our economics are tied to yours. A significant portion of our fees is linked to measurable results — so our incentives are fully aligned with your growth. We invest in your success because we build for growth that compounds, not headlines.
Operators, Not Theorists
Every partner has built and scaled companies from zero. Across 40+ engagements, we've engineered 23 revenue systems and deployed 50+ AI solutions — all designed so clients own and operate them independently. We share what we've scaled, not what we've read.
Solutions You Own, Not Slide Decks You File
Other firms hand you a slide deck and an invoice. We solve the critical growth problem first, then build the system your team owns and evolves — no vendor lock-in, no dependency on us. We sit in your war room, diagnose the bottleneck, design the fix, write the code, build the model, and leave only when the engine runs without us. You keep everything. We make ourselves unnecessary.
Radical Transparency
We'll tell you what's broken before we tell you what we can fix. No sugarcoating, no filler reports. Just the truth and a plan to act on it.
Expert-Validated, Client-Authorized
We validate our recommendations and implementations with a curated network of senior specialists — world-class operators with 15+ years at the world's leading strategy firms, investment banks, and research institutions. Nothing leaves our hands without expert review, and no external specialist sees your data without your explicit written authorization. Every member of our network is bound by NDA. Your information is safe — always.
Strategy firms advise. Dev shops build. We do both — and own the outcome.
Most companies hire strategy consultants who leave behind a deck, or dev shops that build what they're told. Neither is accountable for revenue. We are.
Strategy Firms
Big-name advisory firms
Dev Shops & Agencies
Outsourced teams, freelancers
Greyfeld Partners
Strategy + Execution + Ownership
We've deployed 51 AI systems, built 23 revenue engines, and generated $2.1B+ in client outcomes — because we don't just advise. We build.
Book a Fit CallTrusted by operators who build.
I first started working with the Greyfeld team in San Francisco during their Y Combinator batch. Through my experience covering Alibaba and other global consumer marketplaces, I quickly switched from a skeptic to a strong believer in their vision. The team's industry acumen, work ethic, engineering foundation, and intrinsic motivations are archetypal founder traits for this market. Few executives in this industry have their direct, prior marketplace experience or have built a truly differentiated and efficient business model that has the ability to scale globally.
Every client gets the full team. That's the point.
Because we limit our portfolio, we can do what larger firms can't: embed our senior partners directly in your business — backed by a curated network of world-class domain specialists, engaged only with your explicit authorization.
Strategic Management Consulting
Our team embeds in your leadership as fractional CRO, COO, CPO, or VP Growth. You get World-class strategy with founder-level execution — powered by AI. We design systems your team owns forever: revenue engines, AI automation, and growth playbooks built on 50+ proven solutions we've already deployed.
Strategic Advisory
Ongoing strategic counsel for founders and C-suite executives ready to scale — navigating growth, fundraising, or market expansion. Backed by proprietary AI analytics.
Project-Based Engagements
Tailored, scoped projects designed to scale specific revenue levers — pricing strategy, go-to-market plans, financial modeling, marketplace design, or operational restructuring. Each project builds on our library of proven solutions.
The operators behind the work.
Greyfeld Partners was founded by two operators who chose to build a firm where quality of work matters more than quantity of clients. Over a decade together, they've engineered 23 revenue systems, deployed 50+ AI solutions, and led teams across 12 countries. They are supported by a curated network of senior domain specialists — world-class operators with 15+ years at the world's leading strategy firms, investment banks, and research institutions — engaged only with explicit client authorization and bound by NDA. Every engagement gets their direct, personal involvement — not a junior team with a partner's name on the cover.
Diego Fischer
Co-Founding & Managing Partner — Strategy & Revenue
Diego doesn't advise from the sidelines — he builds. He took InstaCarro from a whiteboard idea to $105M in revenue in 2.5 years, delivering a 20x return to investors and creating Brazil's largest consumer-to-business car marketplace. When he saw the same playbook could work again, he co-founded Carupi through Y Combinator (W20), raised $11M, and grew revenue 8x. Across both ventures, he led over 500 people and built the revenue engines that now form the foundation of every Greyfeld engagement. His instinct for finding money inside a business was sharpened at Goldman Sachs, Credit Suisse, and McKinsey — and refined at MIT Sloan, where he graduated with a perfect 5.0 GPA and won first place in both the Advanced Analytics competition and the t=0 Startup Hackathon.
“Diego restructured our entire go-to-market in 90 days. Revenue went from flat to 340% growth in two quarters. He didn't just advise — he sat in our war room and rebuilt the engine with us. The financial model he built is still the backbone of every board presentation we give.”
Onil Pereyra
Co-Founding & Managing Partner — Technology & AI
Onil is the engineer who turns strategy into systems that scale. He architected the technology behind InstaCarro — the platform that processed billions in car transactions and became Brazil's #1 consumer-to-business marketplace. Then he founded Curbo, scaling it across 3 countries, $114M in transactions, and 300 people, building the top-performing used car marketplace in northern Latin America. Over 15 years, he's developed an instinct for turning complex technical challenges into revenue-generating platforms — a skill he refined as VP of Operations at Fusemachines, where he led AI deployment at enterprise scale. Today, every AI system and automation Greyfeld deploys carries his architectural fingerprint. MSc in Project Management from Université du Québec.
“Onil deployed an AI system that replaced a 40-person manual review team — not by cutting corners, but by building something genuinely better. Error rates dropped 94%, processing time went from days to seconds, and the system paid for itself in three weeks. I've never seen an engineer think so clearly about business impact.”
What makes a boutique firm different
We work with ambitious executives and entrepreneurs building the next great company and established businesses ready to scale. Whether you're doing $1M or $500M in revenue, our sweet spot is companies that know they need to grow but haven't yet built the systems to do it efficiently. We work across four pillars: (1) Strategy & Go-to-Market — pricing, positioning, and revenue architecture; (2) Product & Technology — AI systems, automation, and platform engineering; (3) Operations & Processes — workflows, risk management, and organizational design; and (4) Financial Infrastructure — modeling, fundraising, and capital strategy. Industries include tech, marketplaces, SaaS, fintech, and consumer.
Greyfeld Partners operates as a strategic management consulting firm with fractional executive capabilities. We deploy senior operators across any function your company needs — from CRO and COO to CFO, CTO, CMO, CPO, or Chief of Staff — covering strategy, finance, technology, operations, risk management, marketing, and beyond. We engineer profitable growth through revenue architecture, pricing strategy, financial modeling, product development, go-to-market execution, process automation, and AI-powered systems. We don't just advise — we embed in your team and implement.
It starts with a 30-minute Fit Assessment with our Managing Partner (free, no obligation). If we're a fit, we propose a 3-month engagement with clear deliverables and KPIs. Most clients extend beyond the initial period. Our team works 2–3 days per week with yours, attends leadership meetings, and has direct access to founders/CEO. Think of us as a senior team embedded in your trenches — not advisors on the sideline.
Our clients typically see measurable revenue acceleration, margin expansion, and faster time-to-market within the first 90 days. We find the money that's already in your business and build the systems to capture it — systems your team owns and operates independently. Whether that means restructuring pricing, deploying AI automation, launching new revenue channels, or redesigning go-to-market — we build it, hand you the keys, and the problem stays solved. Our managing partners co-founded and scaled InstaCarro from zero to $105M in 2.5 years, delivering a 20x return to investors. Across 40+ engagements in 12 countries, we've impacted over $2.1B in client revenue. Due to confidentiality agreements, we cannot disclose specific client names — but we're happy to discuss anonymized case studies during your Fit Assessment.
Our engagements are designed to deliver 5–10x the total fee in measurable results. Unlike traditional firms that bill by the hour regardless of outcomes, Greyfeld Partners combines a retainer with a performance-based component — a significant portion of our compensation is tied to the outcomes we deliver. This ensures our incentives are fully aligned with yours: we build for growth that compounds, not headlines. Let's discuss specifics during your Fit Assessment.
Because diluting attention dilutes results. We could easily double our client base, but that would mean assigning junior teams to do the work while partners oversee from a distance — exactly what large firms do. We chose a different model: fewer clients, senior-led execution, and deeper impact per engagement. Our economics support this because our fees are tied to outcomes, not billable hours. When we go deeper, we deliver more, and everyone wins.
We take client confidentiality seriously. All our engagements are protected by non-disclosure agreements, and we do not share client names publicly. This is a deliberate choice — our clients trust us with sensitive strategic and financial information, and that trust is non-negotiable. We're happy to discuss anonymized case studies, share specific methodologies, and walk through our results framework during your Fit Assessment.
No. That's the point. Unlike traditional consulting firms that create dependency through recurring engagements, we build systems your team owns and operates independently. Every deliverable — whether it's a revenue engine, an AI automation pipeline, or a pricing model — is designed to run without us. We transfer knowledge, document everything, and train your team. If you want us back, it's because you have a new challenge — not because the old one broke.
The insights we share with our clients.
Now in your inbox.
Every week, we send one piece of intelligence to a small group of operators and executives. Revenue strategies, AI implementation playbooks, market signals — the same material we use with our $100M+ clients.
Join 700+ operators who read us every Thursday.
Build what matters.
Greyfeld Partners is always looking for exceptional operators, strategists, and technologists who want to work on the hardest growth problems in business. We hire senior professionals who combine analytical rigor with execution speed — people who've built, scaled, or turned around real companies.
Areas we hire for
Know someone who needs a revenue engine?
Refer a company to Greyfeld Partners and earn $10,000 for every engagement of 3 months or more — paid at the conclusion. No cap, no catch — just a thank you for connecting us with great companies.
$10,000 per qualified referral
Learn More & Get Your LinkIs there a fit?
We're selective about who we work with — and we expect you to be selective too. Book a 30-minute call with our Managing Partner. No pitch, no pressure. Just an honest conversation about whether there's a mutual fit.
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