ZCorp Development Let’s talk

WHITE-LABEL DEVELOPMENT FOR MARKETING AGENCIES Your overnight
dev team.

WordPress builds and fixes, landing pages, tracking, reporting and automation for US agencies. Send the ticket at the end of your day. It’s done when you’re back at your desk. Your brand on everything, ours on nothing.

THE PROBLEM WE SOLVE

Plenty of clients.
Not enough dev hands.

Most agencies hit the same wall. You sell websites, SEO and ads, and the dev work piles up behind them. Freelancers disappear mid-project. A full-time hire is a big bet before the work is steady. So small tickets sit for a week and account managers end up apologizing.

We plug in as your dev team. Same tools, same Slack, your name on the work. You get a developer who already knows agency life: clients who change their mind, launches that can’t slip and reports that are due on the first.

WHAT WE HANDLE

The work behind
your services.

If it lives on a client website or in your reporting stack, it’s probably on this list.

01

WordPress builds & fixes

New sites and page builds in Elementor, Divi or custom themes. Location and service pages, speed work, broken updates, white screens and plugin conflicts.

02

Landing pages, forms & tracking

Campaign landing pages, Gravity Forms and webhook hookups to CRMs, GA4 and Tag Manager setup, conversion tracking that actually fires.

03

Reporting & data automation

Search Console, GA4, Business Profile and ad platform data pulled into Sheets, BigQuery or Looker Studio on a schedule, so nobody exports CSVs on the first of the month.

04

AI tools & internal apps

Review reply assistants, pacing dashboards, content workflows and small internal tools your team uses every day. Built so a human checks the output before it goes out.

HOW IT WORKS

Start small.
Keep what works.

No long contract to test us. One real task first, then month to month.

01

TRIAL

Send one real task.

Pick something from your backlog. We scope it, quote a fixed price and deliver it so you can judge the work, not the pitch.

02

ONBOARD

We join your tools.

Your Slack, your project board, your logins. We sign an NDA and set up access the safe way, with our own accounts and only the permissions we need.

03

WORK

Tickets in, work out.

Serbia is six hours ahead of New York. What you send in the afternoon is usually ready the next morning, with notes on what changed.

04

REVIEW

You approve, you ship.

Work goes to staging or a review link first. Nothing goes live on a client site without your OK.

PRICING

Simple monthly plans.
No surprises.

Prices in USD. Bigger builds like full websites or custom apps are quoted separately as fixed projects.

TRIAL

$400one time

One real task from your backlog, at a fixed price.

  • Scoped and quoted before we start
  • Delivered within 3 business days
  • No commitment after
Send a trial task

PRIORITY

$2,750per month

For agencies that ship client work every week.

  • Around 50 dev hours a month
  • Next business day turnaround
  • One automation build per quarter
  • Monthly planning call
  • Month to month
Talk about Priority

RECENT WORK

Built for agencies.
Names left out.

White-label means we don’t name the agencies or their clients. Happy to walk through any of these on a call.

REPORTING AUTOMATION

Monthly SEO reports for about 100 clients, without the manual work

The problem: Account managers filtered Search Console by hand every month for each client, then copied numbers into a sheet.

What we built: A Google Sheets tool that pulls Search Console and GA4 data for every client, strips out branded searches, compares year over year and builds the dashboards. Monthly reporting now runs from one menu instead of by hand.

Apps Script · Search Console API · GA4 Data API · Looker Studio

AI TOOL

Review replies for 130+ Google Business Profile locations

The problem: An agency managing 40+ local clients couldn’t keep up with replying to reviews across every location.

What we built: A tool that pulls new reviews through the Business Profile API and drafts replies in each client’s voice with AI. The team reviews and approves before anything is posted.

Business Profile API · Claude AI · Google OAuth

WORDPRESS

Seven service-area pages for a roofing contractor

The problem: A contractor wanted to rank in seven nearby towns, and the site had just been broken by a failed WordPress update.

What we built: First we restored and cleaned up the site. Then seven unique location pages in Divi, each with its own copy and a live map showing the service radius.

WordPress · Divi · Leaflet / OpenStreetMap

INTERNAL APP

A paid media pacing dashboard for an agency’s ad team

The problem: The paid team tracked spend against client budgets in spreadsheets, so overspend and underspend got caught late.

What we built: A web app that pulls Meta, TikTok and Amazon DSP spend from BigQuery, maps campaigns to client budgets with rules, flags anything off pace and formats alerts for Slack. Team-only access through Google sign-in.

React · BigQuery · Vercel · Google OAuth · Slack

White-label, all the way.

Your brand, your client relationship. We sign an NDA, work in your tools, never contact your clients and hand over everything we build. If your client asks who did the work, the answer is your team.

QUESTIONS AGENCIES ASK

Before we
get started.

Will my clients know you exist?

No. We work under your name, in your channels, and never email or call your clients. If you want us on a client call, we join as part of your team.

How does the time difference work?

We’re in Serbia, six hours ahead of New York and nine ahead of Los Angeles. We overlap with your morning for questions, then work while your office is closed. For most agencies that means faster turnaround, not slower.

Who actually does the work?

ZCorp is run by a developer with 13+ years of web and marketing work for US companies, including years inside agencies. You talk to the person doing the work, not an account manager passing notes along.

How do you handle logins and access?

We use our own user accounts with only the permissions a task needs, shared through a password manager. When we stop working together, you remove our access and nothing breaks.

What if we use up the monthly hours?

We tell you before it happens. You decide whether to hold the rest for next month, add a block of hours or move up a plan. No surprise invoices.

Can we cancel?

Yes. Plans are month to month with 30 days’ notice. We hand over all code, access and documentation when we wrap up.

YOUR NEXT STEP

Send us one task.
See how it goes.

Pick something that’s been sitting in your backlog. We’ll scope it, quote it and get it done.

Start with a trial task