We built what
we wished existed
when we were scaling.
Sellivio is a founder-led eCommerce growth and systems engineering firm. We operate from the inside of multi-channel brands — replacing guesswork and manual overhead with deterministic infrastructure.
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From marketplace operators to
systems architects.
Sellivio was not born in a boardroom or created as a generic consulting agency. It started in the trenches of running fast-growing marketplace and DTC brands.
As our own eCommerce businesses scaled past seven and eight figures, we experienced the exact pain point that every ambitious founder hits: growth creates complexity, and complexity creates severe operational and technical bottlenecks.
More SKUs meant messy inventory reconciliation. Expanding to new marketplaces meant fragmented data silos. Increasing ad budgets produced diminishing returns because operations could not keep pace with customer acquisition.
We realized that conventional agencies only treat symptoms with more spreadsheets and manual labor. What brands truly need is engineering infrastructure: automated stock velocity models, unified contribution-margin intelligence, and software-grade systems built to last.
Growth should not create chaos. It should create leverage.
We founded Sellivio to give established brands the exact systems and execution discipline required to scale without operational collapse.
Deterministic ApproachWhat we believe.
How we operate.
Five uncompromising principles that guide our partnership selection, engineering standards, and daily execution.
Operators Over Consultants
Execution over adviceWe do not deliver 80-page strategy decks and walk away. We engineer the infrastructure, deploy the campaigns, manage the catalog, and execute daily alongside your team.
Systems Over Manual Work
Deterministic automationManual repetitive tasks are failure points waiting to happen. We replace human data-entry friction with robust API pipelines, predictive scripts, and automated event triggers.
Profitability Over Vanity Metrics
True contribution marginTop-line ROAS is meaningless if net cash flow is negative. Every ad dollar, replenishment cycle, and channel decision is measured against real post-COGS profitability.
Long-Term Infrastructure Over Quick Fixes
Compounding scaleWe build growth architectures designed to compound over 3 to 5 years, not fragile hacks that break on the next marketplace algorithm update.
Selective Partnerships Over Volume
Intentionally limited rosterWe purposefully limit our active client roster to guarantee senior partner attention, deep business immersion, and rapid execution velocity.
AI is an operating layer,
not a marketing buzzword.
We avoid the hype. In our architecture, AI and automation serve one single purpose: improving decision quality and eliminating operational drag.
Decision Intelligence
Machine learning models scanning competitor price movements, Buy Box volatility, and real-time ad placement value to inform high-stakes bidding decisions.
Operational Scripting
Private Python & Node.js automation routines continuously monitoring catalog compliance, review spikes, inventory reorder triggers, and invoice reconciliation.
Data Unification
Connecting fragmented data streams across Amazon Seller Central, Shopify, TikTok Shop, and Walmart into a unified contribution-margin telemetry dashboard.
Engineered through
real-world operations.
From managing 8-figure brand catalogs to formalizing the 8 Growth Pillars architecture.
Operating 8-Figure Marketplace Brands
Founders engineer proprietary internal automation scripts to manage $15M+ in catalog volume across Amazon US and Shopify.
Common questions regarding
our origin & philosophy.
Learn how our operator-first background and deterministic growth architecture set us apart from traditional agency models.
Sellivio was founded by operators who scaled and exited their own multi-million dollar eCommerce brands. We were frustrated by standard agencies built around billable hours and vanity metrics, so we engineered an operations-first firm focused on deterministic systems and contribution margin.
Rather than relying on speculative "growth hacks," deterministic growth is based on first principles: inventory velocity, unit economics, conversion architecture, algorithmic ad structures, and custom Python automation. Every action is backed by mathematical telemetry.
Sellivio is a US-headquartered firm. Our senior operators, ad architects, and systems engineers operate across North America, ensuring real-time communication, rapid execution, and complete alignment with commerce operational hours.
Scaling agency headcount creates bloat and lowers execution quality. By strictly capping the number of active partners each lead operator manages, we guarantee high-bandwidth attention, bespoke engineering, and founder-direct access.
Absolutely. We seamlessly integrate with your internal creative, executive, and warehouse teams—acting either as an embedded growth engineering unit or as your complete outsourced commerce division.
Partner with operators who
understand your scale.
We are selective because we operate from the inside of your business. If your brand is generating $1M+ and ready to build deterministic growth systems, apply to start the conversation.