Websites and custom software for large companies.
A website that Google and ChatGPT can read and name, and software built around how your teams actually work. We design and build both for large companies across the United States: one set package price agreed in writing, a live link from the first week, and the code, the domain and every account in your company’s name.
A person reads every inquiry and answers inside one business day.
One studio for the site, the software and getting found.
Websites at scale.
Corporate, brand and multi-location sites, product pages by the hundred, in English and Spanish, each one written and structured so Google, Bing and ChatGPT can read it and name you.
Websites and BrandCustom software.
Internal systems, customer portals, web apps, mobile apps and the integrations between the tools you already pay for, built around how your teams actually work.
Custom SoftwareFound on Google and named by ChatGPT.
Structured data, listings and the pages buyers ask about, then the same buyer questions asked of ChatGPT, Gemini, Perplexity, Claude and Google every month, each answer recorded with its engine and its date.
SEO and GEOYour product inside Claude and ChatGPT.
For software companies: connectors that let your customers use your product from inside Claude and ChatGPT, signed in to their own accounts, with an approval step before anything writes.
Connector BuildsEvery location’s phone, answered.
Voice agents that answer every call for every location, around the clock, book the work and hand a caller to a person when a person is needed.
Voice AgentsAgent systems, with people in charge.
Agents that sort, draft, follow up and report across your tools, built so a person approves anything that sends, charges or changes a record.
Everything We Build
Answered before the first meeting.
- One set price
- One set package price for each scope, in writing before we build, with the milestones and an explicit list of what is out. Changes to what we built are included.
- Your name on everything
- The repository, the domain and every account are in your company’s name from day one, and Hand Off transfers the operating knowledge with the documentation.
- Your requirements, in writing
- Send your vendor, security, brand and accessibility requirements with your inquiry, and the proposal answers each one in writing.
- Accessible to everyone
- Every site we build is held to WCAG 2.2 AA, checked with axe and walked by keyboard and screen reader before launch.
- English and Spanish
- Every site we build can ship in English and Spanish, each Spanish page written to be found in Spanish search. Our own partner site runs in four languages.
- A pace you can plan around
- An answer inside one business day, a proposal within 48 hours of the working session, a live link from the first week and a written update every week.
A hundred pages, four languages, and the rules checked on every one.
For a skincare brand whose own websites ask every crawler to stay out, we built the readable copy of its US range: 102 pages, a page for every product in the brand’s own words, a blog that answers buyers first, twelve checks on every page before it publishes, and structured data that ties the name to the title, in English, Spanish, German and Italian.
What large companies ask us first.
Who designs websites and builds custom software for large companies?
We do. Modern Mustard Seed designs and builds websites and custom software for companies of every size across the United States, including large companies with a marketing team, an IT team and a procurement process. Every engagement is one set package price agreed in writing, changes to what we built are included, and the code, the domain and every account are in your company’s name.
How do you hold a large project to its date?
We scope every engagement so it can be held to a date: a written plan with the milestones, the dates and what is out, a live link from the first week and a written update every week. Sarah Scarano, our founder, leads every build, and the studio’s own agent team does the work around it, so a large scope does not wait on hiring.
Will you work with our marketing, IT and legal teams?
Yes. Send their requirements with your inquiry, and the proposal answers each one in writing. Where your brand or legal team reviews pages before they publish, we build that review into the schedule, and any rule a page can be checked against becomes a check the site runs before a page goes live.
How is an enterprise website or software build priced?
One set package price per scope, in a private proposal within 48 hours of one working session. No price appears on this site, and the number in the proposal does not move. Changes to what we built are always included.
Can you make our company the one ChatGPT and Google name?
Nobody can honestly promise what an engine will say. We build so Google, Bing and ChatGPT can read and cite your site, and we measure what they say: the same buyer questions asked every month, each answer recorded with its engine and its date.
Where are you based?
Our studio is in Kalispell, Montana, and we build for companies in every US state.
Tell us what your company needs.
The site, the system or both, the teams involved, and the date that matters. Sarah Scarano, our founder, reads every inquiry and answers inside one business day.