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We help ambitious professional-services firms become the name their market trusts. Thought leadership, copy and email systems, built on data, not guesswork.
We don’t sell hours or posts. We sell results: authority, pipeline and revenue you can watch grow on a live dashboard.
Thought leadership on LinkedIn. We ghostwrite for you and run a content engine that builds real authority, so qualified buyers come to you instead of being chased.
Get started 02 / 05Conversion copywriting. Sales pages, launch copy and sequences engineered to convert, so the attention you earn turns into revenue, not just likes.
Get started 03 / 05Email marketing & automation. Welcome, nurture and win-back flows set up once and earning forever. Email’s industry ROI sits near 3,500%. We build you a slice of it.
Get started 04 / 05Data-backed branding. Positioning and identity grounded in real market data, so every decision compounds and nothing rests on a hunch.
Get started 05 / 05AI visibility & GEO. Your buyers are starting to ask AI instead of Google, and it hands back one name. We make sure it is yours, with Generative Engine Optimisation built for how the models actually choose.
Get startedA pipeline that fills itself while you bill clients. Copywriting, email automation and a high-converting landing page, assembled into one integrated system.
Numbers from actual client work. No projections, no averages borrowed from someone else’s case study.
Rebuilt the email strategy for Sizibu and nearly doubled their open rates in under 90 days.
Rebuilt a stagnant automated welcome sequence into one of Sizibu’s highest-performing assets.
One sales page we wrote turned 4.2% of cold visitors into enquiries, ahead of the benchmark for that campaign and audience.
The same approach, pointed at a warm email list, lifted that to 6.8%. A warmer audience with more intent, so the return climbed.
Independent research, not our own numbers. It shows the size of the opportunity the results above are built to capture.
Thought leadership is the core of what we sell, so we practice it ourselves. Six pieces to start with. The full run of eighteen is one click away.
AI search · GEO. Google returned ten links and let people choose. AI returns one name. Here is how to make sure the machine reaches for yours.
Read full piece 02 · · Opinion · 5 min readAI & content · Brand voice. Slop mentions jumped 200% last year. The polish that used to signal quality now signals the opposite. What sounding human actually looks like.
Read full piece 03 · · Opinion · 5 min readCustomer experience · Brand loyalty. Why a flawless brand experience might be costing you loyal customers, and what the data actually says about friction.
Read full piece 04 · · Opinion · 8 min readBrand strategy · Touchpoints. Most brands obsess over the first impression. The human brain discards 70% of new information within 24 hours. Your brand is fighting that biology every day.
Read full piece 05 · · Opinion · 5 min readPositioning · Niche. A firm that speaks to everyone gets chosen by no one. The narrower your promise, the faster the right client recognises themselves in it.
Read full piece 06 · · Opinion · 5 min readSales · Trust. Your buyer does most of the deciding before they ever speak to you. The only question is whether you were in the room while they did it.
Read full pieceBuilt for consulting, legal, accounting and advisory firms that are tired of agencies that overpromise and then go quiet.
You work directly with the founder, not a rotating cast of juniors. The person who plans your strategy is the person who writes your copy.
Professional-services buyers don’t respond to gimmicks. We build positioning and content around how your clients actually choose an advisor.
Every engagement comes with a live dashboard. See every metric, every campaign, every result the moment it happens. No monthly mystery.
The things founders want to know before they book a call. If yours is not here, ask us directly.
Ask us anythingTen 15 J.T. is a Johannesburg digital agency for founder-led professional-services firms. We handle five things: thought leadership on LinkedIn, conversion copywriting, email marketing and automation, data-backed branding, and AI visibility (GEO). Every engagement runs on a live dashboard, so you see the numbers as they move instead of waiting for a monthly report.
Consulting, legal, accounting and advisory firms, mostly in South Africa, usually founder-led and past the start-up stage. The common thread is a firm that sells expertise and needs the market to trust it before a buyer ever books a call. We are not a fit for high-volume e-commerce or businesses that want posts by the dozen.
Retainers and projects are priced per engagement, because a positioning rebuild and a monthly content engine are not the same job. Our AI visibility service has fixed entry points: an AI Visibility Audit at R4,500, a GEO Foundation build at R12,000, and a Visibility Partner plan at R5,500 a month. Everything else is quoted after a free strategy call.
Email and conversion work moves fastest, often inside 90 days. We rebuilt Sizibu’s email strategy and took open rates from 18% to 34% in under 90 days, and their welcome sequence from 22% to 41%. Authority and search visibility take longer, usually two to three quarters of consistent publishing before it shows up in the pipeline.
GEO stands for Generative Engine Optimisation. When a buyer asks ChatGPT, Gemini or Perplexity who they should hire, the model hands back one or two names rather than ten blue links. GEO is the work of making yours the name it returns: structured content, clear entity signals, cited claims and sources the models actually read.
Yes. We are based in Johannesburg and work with clients across South Africa and further afield. Everything runs remotely, and the live dashboard means distance changes nothing about what you can see. If you would rather meet in person, we do that in Johannesburg.
The founder does. You work with the person who plans your strategy and writes your copy, not a rotating cast of juniors and not an offshore content mill. That is the trade-off of a small agency: fewer clients at a time, and no handover to someone who has never read your brief.
The Follow-Up Gap Audit: ten questions, ten minutes, one honest score out of ten. Most businesses do not have a lead problem. They have a follow-up problem. This shows you exactly where.
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Ten 15 J.T. is a digital agency in Johannesburg, South Africa, founded and run by Janeth Thusi. We work with founder-led professional-services firms, consulting, legal, accounting and advisory, across South Africa and further afield.
The work covers five things: thought leadership on LinkedIn, conversion copywriting, email marketing and automation, data-backed branding, and AI visibility (GEO). Every engagement runs on a live dashboard, and the person who plans your strategy is the person who writes your copy.