We build the function that sells, so growth stops depending on the founder.
Sales, business development, and client services, built into agencies that have outgrown relationship-led selling. Across five markets.
Most founder-led agencies hit the same four walls.
Founder-dependent pipeline
Every meaningful deal traces back to the founder's relationships. When the founder is heads-down on delivery, the pipeline goes quiet.
The reactive ceiling
Work arrives through referral and inbound. With no engine for proactive selling, growth caps at the size of the founder's network.
Concentration risk
A handful of accounts carry the business. Comfortable, until one of them leaves.
Stalled expansion
New markets, new service lines, and brand equity stay on the someday list, because no one owns the selling that would fund them.
Built into the agency, not bolted on the side.
SSA builds the selling function so growth keeps moving without the founder in every room. Where a sales function is missing or still early, Sebastian co-creates it with leadership and moves the agency from reactive selling to proactive selling. The work is a roadmap across sales, business development, and client services, and the systems and assets that make it run.
The deliverables are working systems and sales assets, not a series of calls and a slide deck.
Outreach specs, content systems, and design prompts are built for LLM tools from the first draft.
US, UK and Ireland, UAE and KSA, Singapore and Hong Kong, and Japan, with delivery available in Japanese.
Calibrated for a specific kind of agency.
If two or three of these describe your last twelve months, we should talk.
- You run a midsized agency or a boutique consultancy
- You or a small group close most of the meaningful work yourselves
- Growth has flattened and the pipeline leans on referrals
- A few accounts represent an uncomfortable share of revenue
- You want to enter new markets or service lines but no one owns the selling
- You have tried tactics and tools, and the selling still depends on the founder
One path, three phases. You can stop after any of them.
Define
We map where growth should come from and build the roadmap across sales, business development, and client services. Market sizing, account strategy, territory whitespace, and account scoring.
Build
We co-create the selling function with leadership and ship the systems that run it. Outreach systems, CRM and trackers, productized offers, and the sales assets that support them. Where the function does not exist, we build it.
Scale
We move the agency from reactive to proactive selling and keep it supplied. Recurring market intelligence, brand and editorial production, and partnership development.
Engagements usually start with a fixed-scope diagnostic or a ten-day Sprint, with the Sprint fee creditable toward ongoing work.
What gets built.
Where SSA works.
Services are available in Japanese.
Sebastian Shimomichi.
Sebastian Shimomichi is a revenue-driven sales and marketing leader with a data-intensive background. His career has moved from surfacing actionable insight tied to growth and efficiency for enterprise and mid-market businesses, to owning that growth directly. At SSA he works with agency founders and leadership to set the roadmap across sales, business development, and client services, and to build the function that runs it. He takes on a small number of engagements at a time, by design.
Recent engagements and prior exposure.
- SystangoAI technology company
- Creative Dockcorporate venture builder
- Chesamelbusiness transformation agency
Google, Microsoft, Criteo, Trax, Rakuten, SoftBank, Pfizer, GSK, Haleon, Adobe, McDonald's, Shiseido, L'Oréal, and others.
What founders usually ask.
A first conversation is free and direct.
Tell me where the agency is trying to go.