[ Websites, apps and systems ]

Software, explained.

You know your business. We know the code. Tell us what's slowing you down and we'll turn it into software you own, in plain English, with a clear price and a date.

Start a project
See how it works
A business owner and a developer laughing over a laptop at a long wooden table in a bright, plant-filled studio.

$ git commit -m "your idea, explained"

  • 01

    Websites

    So people can find you, trust you and get in touch.

  • 02

    Apps

    For customers who use you often, on the go.

  • 03

    Systems

    For teams drowning in spreadsheets and admin.

Stack

Tools we ship with: 16

[ 01 Manifesto ]

Two people pointing at pencil sketches of app screens on a sunlit wooden table with sticky notes.
Fig. 02 /Plain English first

Code isn't magic. It's just instructions. The hard part is knowing what your business needs, and you already know that part. Tell us the problem in plain English. We turn it into software, show it to you before we build it, update you every week and hand it over when it's done. You own every line.

The mainline&co promise, in one paragraph.

mainline&co
Start a project
See how it works

[ 02 What we build ]

Six ways we help.

Not sure which one you need?

Most businesses need a mix. Tell us the problem and we'll tell you which one fits, in one call.

Start a project
Book a free 30-minute call

[ 03 Process ]

Five steps. No surprises.

The same five steps on every project. You always know which one we're on, and what happens next.

  1. 01Day 1

    We talk

    git checkout -b your-idea

    No code, no jargon. You tell us what's slowing your business down, and we listen until we really get it.

  2. 02Week 1

    We plan

    git commit -m "plan: what, how much, when"

    A simple written plan: what it does, what it costs and when it's ready. One named person you can always call.

  3. 03Week 2

    You see it first

    git push preview

    A clickable prototype you can try on your own phone before we build anything. Change your mind here, not later.

  4. 04Every week

    We build

    git merge feature/* --no-ff

    We build it and you get an update every week, with something you can click. No disappearing act.

  5. 05On the date

    Launch and support

    git tag v1.0.0

    It goes live on the date we agreed. You own every line, and we stay around to look after it.

[ Your turn ]

Got an idea?

Let's talk.

No brief needed. Tell us what's slowing your business down and a real person replies within one working day.

info@mainlineeco.com
Start a project
Book a free 30-minute call

[ 04 The promise, in numbers ]

  • 7 days between updates. Every week you see what changed, and you can click it.
  • 1 person who knows your project inside out, from the first call to launch day.
  • 100% yours of the code, the IP and the credentials, from the first commit.
  • 30 days of on-call support after launch, included in every build.

Every number above goes in writing.

Get a free estimate

[ 05 Engagements ]

Three ways to work with us.

  • Two developers and a shop owner planning an app together at a wall of sticky notes and printed screens.
    01 / 03Fixed price, agreed up front

    Build

    For a website, app or system with a clear goal. We plan it, price it and launch it on a date you can plan around.

    Typical length
    4 to 12 weeks
    Team
    2 to 4 people
    Starts with
    A free call
  • A small software team working together at a long oak desk in a sunlit London studio full of plants.
    02 / 03Monthly, cancel anytime

    Grow

    Your own part-time tech team. New features, fixes and ideas every month, as your business grows. Scale it up or down.

    Minimum
    3 months
    Team
    1 to 3 people
    Starts with
    An intro week
  • A café owner and a developer solving a problem together on a laptop at a plant-filled counter.
    03 / 03Honest check first, then a fixed price

    Rescue

    For the project that got stuck. We check it in a week, tell you the truth about it in plain English, then finish it.

    Check
    1 week
    Then
    Fixed price
    Starts with
    Access to the code

Not sure which one?

Start with a free 30-minute call. Tell us the problem and we'll tell you which one fits.

Book a free call

[ 06 Studio ]

Software, London.

Current time in London

London, GMT51.5072° N, 0.1276° W
People walking through the Barbican Conservatory in London, tropical plants growing over concrete balconies.
Fig. 03 /Barbican, EC2

We're a small London team that works remotely, made of people who like explaining things. Real engineers you can talk to on a video call, in a timezone that suits you.

Fig. 04 /The team, at work
A small software team working together at a long oak desk in a sunlit London studio full of plants.
Two people pointing at pencil sketches of app screens on a sunlit wooden table with sticky notes.
Fig. 05 /Every app starts on paper
Base
London, United Kingdom
Hours
09:00 to 18:00 UK time
Overlap
Europe all day, New York from 14:00
Kick-off
On a video call, whenever suits you

[ 07 Terminal ]

Or ask the terminal.

Code isn't magic, so try some. Type help. Everything on this page is also a command.

guest@mainline: ~

[ 08 FAQ ]

Straight answers.

  • No. You need to understand your business, and you already do. We explain everything in plain English and never hide behind jargon.

Still have a question?

Ask a person, not a chatbot. We reply within one working day.

Email a personStart a project

[ 09 Contact ]

Let’s close it.

Tell us the problem. We'll tell you honestly whether software can fix it. A real person replies within one working day.

Send a brief

* Required

Budget
Timeline