Amplitude Design

Portland, Oregon, United States

Web development and custom applications built by one developer since 2002

Kevin Johnson has run Amplitude Design as a one-person operation out of Portland, OR since 2002, taking on web and application projects that range from e-commerce builds to contract work, brochure sites, and custom application development. Clients work directly with Johnson rather than being routed through a larger team, and several have stayed with the company for years, in some cases more than a decade, with some now on a third iteration of their major projects.

Services cover frontend and backend development, systems integration, and both website and landing page design, addressing needs from a simple brochure site to a fully integrated content management system, secure e-commerce platform, web app, or intranet/extranet. Johnson treats design as one part of a broader planning process, with business requirements shaping decisions before visual work begins. Each project gets a detailed review of client requirements, and builds are tested across a range of devices and platforms before launch.

The long client relationships reflect continuity built into how the business runs: the same person handles planning, development, and testing on every job, an arrangement that has held for over 16 years of operation in Portland.

24
YEARS IN BUSINESS
1
SERVICES

Capabilities

Services

What these services involve

Application Development
Application Development for custom software development buyers. Clear scope, measurable outcomes, and reliable delivery.

Agency details

Team size
1-10 people
Founded
2002 (24 years)

How Amplitude Design scores 43 on Agency List

The Agency List Score rates each listing out of 100 across four equally weighted areas. It measures the strength of the agency's listing and public signals — not the quality of its work.

Presence & Maturity

25 / 25

How complete and how recently maintained this listing is.

  • Has a detailed written overview.
  • Has a tagline summarising what the agency does.
  • 6 of the core profile fields are filled in.
  • Profile details were updated recently.
  • Founding year on record (2002).

Relevance & Capability

9 / 25

How clearly the agency's specialism and services are classified.

  • Assigned to a primary category.
  • No individual services listed.

Credibility & Trust

9 / 25

Contactability and verification signals that show a real business.

  • Listing ownership is not yet verified.
  • A working website is on record.
  • No contact address on record.
  • A phone number is on record.
  • Location is on record.

Authority & Proof

0 / 25

Independent proof of work: reviews, published projects and awards.

  • No published reviews yet.
  • No published project work yet.
  • No awards recorded.

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About this agency on Agency List

Amplitude Design is listed on Agency List as part of our global directory of professional agencies. Profiles are compiled using a combination of agency-submitted information, publicly available data, and Agency List classification systems.

This page reflects the most current information available for Amplitude Design and may evolve as additional data is verified or updated.

Local context

Amplitude Design operates in Portland, Oregon, United States serving clients locally and beyond. Agency List organizes firms by geography to help buyers understand the distribution of agencies across regions and markets.

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Data notes

Profile information is derived from agency submissions and public sources. Some attributes may be estimated and are updated over time as additional data becomes available.