This is an operational case study from the past six months, written together with one of our Korean advertising agency clients. It covers how we started, where the inflection point happened, and what our 15 VAs are currently doing.
The starting point
Our client is a specialized agency focused on global creator marketing and advertising. With a 30-person team, the core of their business was daily communication with hundreds of overseas creators every month.
The bottleneck was English. They had tried hiring English-capable full-time staff in Korea, but recruiting itself was difficult and the cost was steep. The business was global, but the workforce was stuck inside the domestic market.
At the client's request, Sapienta took on the operational consulting engagement and ran the VA setup alongside it.
September 2025: The first 2 hires
We started with just two hires. No big bang.
The point of this stage was to verify two things: whether VAs could adapt to a Korean advertising agency's workflow, and whether the client's team could learn how to collaborate with them. We refined the internal manuals to fit the client's actual operations and clearly defined what the VAs were and weren't responsible for.
Two candidates who passed our 5-stage verification process began work on creator email correspondence and new creator sourcing.
December 2025: 5 VAs, and the acceleration begins
Over three months, the team grew incrementally, two more and then three more, until it reached five. We tuned hiring speed to the client's campaign calendar and workload. We scaled up when it was time to scale up, and held when it was time to hold.
At the 5-person mark, the change became unmistakable. Korean staff were freed from repetitive work and started spending real time on planning and strategy. Overtime dropped. The labor cost savings reached a level you could actually feel.
From this point on, the client started taking VA expansion much more aggressively. Up to five was the validation zone. After that, it was the acceleration zone.
May 2026: 15 VAs
Today, 15 VAs handle the following:
- Close communication with global creators
- New creator discovery
- Marketing and ad campaign schedule management
- First-pass review of ad videos (brand guideline checks)
- Email correspondence and outbound
- Data entry and management
The first-pass video review, in particular, isn't simple delegation. It's only possible when you match the work to a VA with prior experience in that specific content domain. Not every VA can do review work. The core of VA work matching is designing who goes where, even within what looks like the same job title.
Results
Labor costs are running at over 60% savings compared to Korean full-time hires.
Creator response time has also shortened, though the case mix makes that hard to quantify cleanly. What both sides do agree on is that the total load carried by the Korean team has dropped meaningfully.
What we learned: Why acceleration kicks in at 5
We see this same pattern across other operational engagements.
Almost no company starts by taking on a large headcount, and there's no reason they should. You need a stretch where you start with 2 or 3 people and let the company internally learn what work can and can't be handed off to VAs. Define the work clearly, prepare proper manuals, give clear instructions, and VAs deliver accordingly. And yes, you also get the effect of running a full-time employee for KRW 1.3 to 1.5M a month.
The point where VA onboarding stabilizes and the operating system around them takes shape is usually right around the time 4 to 5 VAs are in place and working. From that point, the company gets faster at spotting "VA-eligible" work inside its own operations, and hiring requests grow naturally.
VA operations is closer to role design than recruiting. Design the first five as the learning zone, and the company accelerates on its own afterward.
Client comment
"Working with VAs has delivered real cost savings, and beyond that, a significant boost in operational efficiency. Our Korean staff can now focus on the work that matters most. By the end of this year, we plan to more than double the team to over 30 VAs." — Client CEO
A model that works once inside a company tends to keep expanding from there.
Closing
Sapienta is not just an overseas talent introduction service. Verification, contracts, settlement, management tools, ongoing monitoring: we directly handle every operational burden that comes with running an overseas workforce as a Korean company. It's a managed service.
If you're a Korean company currently evaluating this, you can start with a free 30-minute consultation.
For consultation on overseas VA hiring, reach out at contact@sapienta.world.
