Web design and development

Web design for Washington, DC businesses

We design and build custom websites for Washington, DC businesses remotely from Malvern, PA, with the scope, price and schedule in writing first.

Start a projectCall (610) 890-9711
The west front of the United States Capitol in Washington, DC, under a clear blue sky.

Website design for Washington, DC, delivered remotely

We take on website work for Washington, DC businesses remotely from Malvern, PA, and every stage is reviewed in your own browser.

Why it matters: 159,002 business establishments operated in the metro in 2023, and 83.5% of them employed fewer than 20 people.

Go deeper: how a remote build runs, stage by stage

Professional, scientific and technical services alone holds 22.1% of the 2,863,486 paid employees counted in the metro in 2023.

Health care and social assistance adds 12.7% and accommodation and food services 10.2%, so three sectors hold 45.1% of the payroll count.

The three cards above are the three largest of the 12 sectors we read for the metro, by paid employees: professional, scientific and technical services, health care and social assistance and accommodation and food services.

Retail is fourth, with 265,458 paid employees in 15,148 establishments.

  1. Professional services

    633,277 paid employees across 34,327 establishments in 2023; a site here needs proof of expertise, case pages and a routed enquiry form.

  2. Health care

    365,086 paid employees across 19,078 establishments in 2023; a site here needs online booking, intake forms and an accessible path for every patient.

  3. Hospitality and food

    291,897 paid employees across 14,138 establishments in 2023; a site here needs hours, menus and bookings that read on a phone in a hurry.

Websites we built

Six live sites we built open here in a preview window, the same way your build is reviewed before launch.

Why it matters: A working site shows how a build loads, reads and takes an enquiry, which no mock-up can.

Go deeper: how the previews work

Preview opens the live site inside a sandboxed frame on this page. Atlas Peptides blocks framing, so its preview is a dated screenshot instead.

None of the six is presented as a Washington, DC business; each one shows a job a site has to do, whatever the city.

Between them they cover a configurator that prices as you build, online scheduling, booking with reviews pulled in, a shared stock count, a quote form and a checkout.

The Phantom Arcades website, built by OneAlgorithm

Phantom Arcades

Custom home arcade cabinets

A configurator that prices the cabinet as you build it, and a page for every machine he has made.

phantomarcades.com (opens in a new tab)
The Inspect This Home Inspections website, built by OneAlgorithm

Inspect This Home Inspections

Home inspection

Service pages by area, online scheduling, and reports the owner updates himself.

inspectthishomeinspections.com (opens in a new tab)
The The Boards Professor website, built by OneAlgorithm

The Boards Professor

Medical exam tutoring

Booking, tutor profiles and reviews pulled from two platforms into one page.

theboardsprofessor.com (opens in a new tab)
The The Gorband website, built by OneAlgorithm

The Gorband

Hand block-printed cotton clothing

Moved off Shopify onto Square: one catalogue and stock count for the website and the market stall.

thegorband.com (opens in a new tab)
The Starzi Brothers website, built by OneAlgorithm

Starzi Brothers

Excavation and concrete contractors

Moved off Squarespace: a page for each service and town, and a quote form that lands in the office inbox.

starzibros.com (opens in a new tab)
The Atlas Peptides website, built by OneAlgorithm

Atlas Peptides

Research peptides

A shop with Stripe checkout and a lab certificate for every lot.

atlasaminoclub.com (opens in a new tab)

159,002 businesses, in public numbers

The metro had 159,002 business establishments in 2023, +2.6% since 2018, by County Business Patterns.

By the numbers: 6,437,907 people lived in the metro in 2024, +2.5% since 2019, and payrolls counted 2,863,486 employees.

159,002

Establishments, 2023

Census CBP 2023 · +2.6% from 154,938 in 2018 ·

83.5

% under 20 staff

Census CBP 2023 · 132,793 of 159,002 ·

4,727

Programming firms (541511)

Census CBP 2023 · +13.7% since 2018 ·

297.3

541511 per 10,000

Census CBP 2023 · 4,727 of 159,002, a ceiling ·

681.1

5415 per 10,000

Census CBP 2023 · 10,829 establishments ·

6,437,907

Population, 2024

Census ACS 1-year 2024 · +2.5% since 2019 ·

4,064

Change since 2018

Census CBP 2018 and Census CBP 2023 · 154,938 to 159,002 ·

Go deeper: what County Business Patterns counts

Of the 159,002 establishments, 132,793 had fewer than 20 people and 21,511 employed 20 to 99. Another 4,201 employed 100 to 499, and 497 employed 500 or more.

Within the 20-to-99 band, 15,724 establishments had 20 to 49 people and 5,787 had 50 to 99. The average establishment employed 18 of the 2,863,486 paid staff.

County Business Patterns counts employer establishments, locations with paid staff, so a sole owner with no employees is not in the 159,002; that is one establishment for every 40.5 residents.

NAICS 541511, custom computer programming, includes custom web page design and all other custom software, so 297.3 per 10,000 businesses is a ceiling on web-design firms in the metro.

Professional services leads, with 633,277 employees

Professional, scientific and technical services employed 633,277 people in the metro in 2023, the most of the 12 sectors we read.

Why it matters: who a site talks to follows the sector mix, and health care and social assistance comes next at 365,086 employees.

  • Professional services: 18.4 employees per establishment; expertise must be easy to check.
  • Health care: 19.1 employees per establishment; booking and intake matter most.
  • Hospitality and food: 20.6 employees per establishment; hours and menus must read fast.
Go deeper: who these pages are written for

34,327 professional, scientific and technical services establishments in the metro need proof of expertise, case pages and a routed enquiry form. The 19,078 in health care and social assistance need online booking, intake forms and an accessible path for every patient.

Accommodation and food services counts 14,138 establishments that need hours, menus and bookings that read on a phone in a hurry, and retail trade, fourth at 265,458 employees, needs stock that matches the till and a phone checkout.

Administrative and support services ranks fifth at 212,794 employees, and the 12 sectors we read cover 2,455,445 of the 2,863,486 paid employees in the metro.

Together the four employ 1,555,718 people, 54.3% of the payroll count; the sector figures shape the scope, and the six sites above are our delivered work.

The Washington, DC metro: the four largest of 12 sectors by paid employees, Census CBP 2023
SectorPaid employees, 2023Establishments, 2023
Professional services633,27734,327
Health care365,08619,078
Hospitality and food291,89714,138
Retail265,45815,148

The top phrasing, “web design washington dc”, draws 720 US searches a month by Semrush’s exact count.

By the numbers: the 4 phrasings add up to 1,110 searches a month, 720 of them on the top one.

  • Autocomplete also completes “web development washington dc”, a phrasing people type.
Go deeper: how we rank every place by the same numbers

We rank every place in the country by the same measure, the sum of these phrasings, and this page sits 38 of the 134 places we measured, at 1,110 searches a month.

The development phrasing draws 110 a month and the developer phrasing 20, phrasings that often signal a build beyond a brochure site.

The company-intent phrasing draws 260 searches a month at about $7.17 a click, the buyer already looking for a firm.

Semrush recorded no advertiser bids for “web design washington dc”, so its cost per click is left blank rather than guessed.

The top phrasing, at 720 searches, carries a Semrush keyword difficulty of 23 out of 100.

Monthly US searches and cost per click for Washington, DC web design phrasings, Semrush, 24 October 2026
PhraseSearches a monthCost per click
web design washington dc720no bid data
web design company washington dc260$7.17
website development washington dc110no bid data
web developer washington dc20$15.49

Semrush US exact match · 1,110 a month in all, top 720 · pulled 24 October 2026 ·

4,727 custom programming firms in the metro

4,727 custom computer programming establishments (NAICS 541511) operated in the metro in 2023, +13.7% since 2018.

Yes, but: that code also covers all custom software, so 297.3 per 10,000 businesses is a ceiling on web-design firms, not a count.

  • Graphic design (NAICS 541430): 320 establishments in 2023.
  • Marketing consulting (NAICS 541613): 1,065 establishments in 2023.
  • Advertising agencies (NAICS 541810): 246 establishments in 2023.
How to choose a web design company
Go deeper: how to compare the firms on your list

With 5,047 programming and graphic design establishments in the metro, ask each firm for live sites you can open, who will own the code and domain, and a written scope.

The wider NAICS 5415 group, computer systems design and related services, counted 10,829 establishments, 681.1 per 10,000 businesses.

Marketing consulting (1,065) and advertising agencies (246) often sell websites too, so the full field in the metro is wider than the programming count.

Custom programming establishments went from 4,157 in 2018 to 4,727 in 2023, while graphic design stood at 320, 20.1 per 10,000 businesses.

Those 4,727 programming firms employed 85,080 people, about 18 each. The wider 5415 group employed 228,213.

From 154,938 to 159,002 businesses since 2018

Establishments in the metro rose from 154,938 in 2018 to 159,002 in 2023, a change of +2.6%.

The bottom line: health care and social assistance grew the most of the 12 sectors, +11.3% in establishments, while wholesale trade moved −7.2%.

  • 20 to 99 employees: 21,170 establishments in 2018, 21,511 in 2023.
  • 100 to 499 employees: 4,071 in 2018, 4,201 in 2023.
  • 500 or more employees: 431 in 2018, 497 in 2023.
Small business website designWebsite redesign
Go deeper: what the change means for a website

Health care and social assistance went from 17,135 to 19,078 establishments between 2018 and 2023; wholesale trade went from 4,043 to 3,751.

Real estate, rental and leasing came second, +9.1%, and educational services third, +4.6%.

That is a net gain of 4,064 establishments: each new one needs a first site, and each established one carries addresses and rankings a rebuild must keep.

Paid employees went from 2,734,972 to 2,863,486 over the same years, +4.7%. Population moved +2.5% from 2019 to 2024, to 6,437,907.

Ranked 20th of 64 places by businesses

The metro ranks 20th of the 64 places we build pages for by business establishments, and 1st for programming firms per 10,000 businesses.

By the numbers: population growth since 2019 ranks 47th of 64, and the share of establishments under 20 staff ranks 49th.

Go deeper: why every place is measured the same way

Every place page uses the same Census tables, so these ranks compare like with like: 159,002 establishments here against the 64 places' own counts, 43rd for their change since 2018.

Programming firms run 297.3 per 10,000 businesses here against a median of 85.2. The under-20 share is 83.5% against 84.4%.

The 64 are the places whose web design searches clear 500 a month in Semrush's exact data, state pages counted with any places folded in; this one draws 1,110, 38th of the 134 places we measured nationwide.

The Washington, DC metro against the median of the 64 place pages, Census CBP 2023 and ACS 2024
MeasureHereMedian of 64
Programming per 10,000297.385.2
Establishments since 2018+2.6%+5.2%
Population since 2019+2.5%+4.2%
Under 20 staff83.5%84.4%

How a Washington, DC web project runs

A project here runs in the same five stages as every build of ours, from agreeing what the site is for to launch.

What you get: the scope, price and schedule in writing at stage two, before anything is designed or built.

How a custom website build runs
Go deeper: what happens at each stage

Stage one fixes who the site talks to; in the metro, where professional, scientific and technical services employs 633,277 people, that answer often sets the integrations.

Stage five hands the site over in your own accounts, a handover any of the 10,829 systems design establishments in the metro could pick up from.

For the 19,078 health care and social assistance establishments here, stage two usually lists online booking, intake forms and an accessible path for every patient.

Diagram of the five stages of a Washington, DC web project, stacked for phones01Agree the purposeaudience · job · connections02Scope in writingpages · price · dates03Design in the browserreal content · real widths04Build and wire it upcode · forms · CRM · analytics05Launch and hand overyour repo · domain · hostingDiagram of the five stages of a Washington, DC web projectA rail runs through five stations: agree what the site is for; scope, price and schedule in writing; design in the browser; build and wire it up; launch, hand over and stay on.01Agree the purposeaudience · job · connections02Scope in writingpages · price · dates03Design in the browserreal content · real widths04Build and wire it upcode · forms · CRM · analytics05Launch and hand overyour repo · domain · hosting
The five stages in order; the written scope, price and schedule come at stage two.

  1. Agree what the site is for

    Who the site talks to, what it must get them to do, and what it connects to.

  2. Scope, price and schedule in writing

    Pages, integrations, price and dates on paper before any design starts.

  3. Design in the browser

    Real content at real widths, reviewed on your own phone as it takes shape.

  4. Build and wire it up

    Code, forms, CRM, analytics and accessibility checks, in one pass.

  5. Launch, hand over, stay on

    The site goes live in your accounts, and we stay on for support.

Working with us from Washington, DC

Washington, DC shares Eastern time with our office, so calls and reviews fall inside the same working day.

The bottom line: the office answers (610) 890-9711 Monday to Friday, 9 to 5, the same day 4,727 programming firms here keep.

OneAlgorithm625 Swedesford Rd, Unit B, Malvern, PA 19355(610) 890-9711Mon–Fri 9–5Google Business Profile: 5.0 from 6 reviews, read 23 Oct 2026 Updated 24 October 2026

Do you have an office in Washington, DC?

No. Our one office is in Malvern, PA, and projects here run remotely, with every stage reviewed in your own browser.

Go deeper: calls, reviews and where the work happens

Calls and screen-shares cover the whole build, and you review the work in your own browser between them; no branch office or answering service sits in between.

Web design questions from the metro

Not answered here? Call the office: (610) 890-9711

Yes. We take on website work for Washington, DC businesses remotely from Malvern, PA, and every stage is reviewed in your own browser. You deal directly with the people designing and coding the site, and calls are set in Eastern hours, the clock the metro's 159,002 establishments keep.

The scope sets the price, not the ZIP code: pages, integrations and what the site must do, for one of the 132,793 small establishments here or a larger one. You get the price and schedule in writing first; Semrush recorded no advertiser bids for the main web design phrasing here.

How much does a website cost?

Hire a designer when the site has to book, quote, sell or connect to a CRM; a builder fits a site a standard template can serve. In the metro, 83.5% of establishments employ fewer than 20 people, so we say which route fits before quoting anything.

Squarespace, Wix or WordPress versus custom

Yes. Titles, headings, page speed and schema go in while the site is built, and Search Console is connected at launch, so the 1,110 monthly searches (top phrasing 720) in the table above are targeted from day one. “web design washington dc” alone draws 720 a month, by Semrush’s count.

SEO services

Open the live sites a firm has built, ask who owns the code, domain and hosting, and get the scope and price in writing. With 5,047 programming and graphic design establishments in the metro, and 297.3 programming firms per 10,000 businesses, those three checks shorten the list quickly.

How to choose a web design company

Not when every old address is mapped to its new page and redirected before launch, so rankings and links carry over. For any of the 159,002 establishments in the metro, that map is the first thing a rebuild of ours produces.

Website redesign

Yes. We build to WCAG 2.1 AA: keyboard paths, contrast, labels and headings checked before launch, with no overlay and no certificate claimed. It matters most for the 19,078 health care and social assistance establishments in the metro, whose patients include people of every ability.

ADA compliance and accessible websites

How a custom website build runs

Showcase

What we build with, and what you keep

Showcase

Small business website design

Service

How much a website costs

Service

Website redesign

Service

Baltimore web design

Nearby metro

Richmond web design

Nearby metro

Pittsburgh web design

Nearby metro

Start your Washington, DC website project

Tell us what the site has to do, and the scope, price and schedule come back in writing before anything is built.

What to have ready

  • What the site has to do: sell, book, explain or log people in
  • Two or three sites you like, and why
  • What you already have: domain, hosting, content, logins

What happens next

  1. 01Send it on the contact page, or call the office.
  2. 02A person at OneAlgorithm reads it and replies.
  3. 03If it fits, the written scope, price and schedule follow.

Start a project

Topic · Website · Washington, DC

What does the site have to do? Tell us on the contact page; the topic is already filled in.

Start a project

Prefer to talk it through?

(610) 890-9711

OneAlgorithm · 625 Swedesford Rd, Unit B, Malvern, PA 19355 · Mon–Fri 9–5

Where these figures come from

Every Census figure on this page covers the Washington, DC metro area (Census CBSA code 47900). County Business Patterns (CBP) counts employer establishments; the American Community Survey (ACS, 1-year) gives population. A person at OneAlgorithm read them on 21 October 2026. The query each one came from is printed as text, not linked.

FigureValueYear
Establishments, 2023159,0022023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Business establishments, 2018154,9382018
api.census.gov/data/2018/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Paid employees, mid-March 20232,863,4862023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Population, 20246,437,9072024
api.census.gov/data/2024/acs/acs1?get=NAME,B01003_001E&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Population, 20196,280,6972019
api.census.gov/data/2019/acs/acs1?get=NAME,B01003_001E&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Programming firms (541511)4,7272023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=541511&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
NAICS 541511 establishments, 20184,1572018
api.census.gov/data/2018/cbp?get=ESTAB,EMP&NAICS2017=541511&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Computer systems design establishments (NAICS 5415)10,8292023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=5415&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Establishments with 20-49 employees, 202315,7242023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Establishments with 50-99 employees, 20235,7872023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Establishments with 100-249 employees, 20233,2892023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Establishments with 250-499 employees, 20239122023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Establishments with 500-999 employees, 20233262023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Establishments with 1,000 or more employees, 20231712023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Professional, scientific and technical services: paid employees633,2772023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=54&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Professional, scientific and technical services: establishments34,3272023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=54&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Health care and social assistance: paid employees365,0862023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=62&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Health care and social assistance: establishments19,0782023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=62&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Accommodation and food services: paid employees291,8972023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=72&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Accommodation and food services: establishments14,1382023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=72&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Retail trade: paid employees265,4582023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=44-45&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Retail trade: establishments15,1482023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=44-45&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
% under 20 staff · computed: total establishments minus the six size classes of 20+ employees, divided by the total83.52023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
541511 per 10,000 · computed: NAICS 541511 establishments / total establishments x 10,000297.32023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=541511&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900 · api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
5415 per 10,000 · computed: NAICS 5415 establishments / total establishments x 10,000681.12023
api.census.gov/data/2023/cbp?get=ESTAB,EMP&NAICS2017=5415&EMPSZES=001&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900 · api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900
Change since 2018 · computed: total establishments 2023 minus 20184,0642023
api.census.gov/data/2023/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900 · api.census.gov/data/2018/cbp?get=ESTAB,EMP,EMPSZES&NAICS2017=00&for=metropolitan%20statistical%20area/micropolitan%20statistical%20area:47900

U.S. Census Bureau · census.gov/programs-surveys/cbp.html · census.gov/programs-surveys/acs

Where the search figures come from

Monthly US searches, cost per click and keyword difficulty from Semrush Keyword Overview (Bulk Analysis, US database, exact match), pulled 2026-10-24 13:05-13:15 ET. A phrase Semrush has no data for counts as zero. Every place we considered is ranked by the same sum: Washington, DC is 38 of 134.

PhraseSearches a monthCost per clickDifficulty
web design washington dc720no bid data23
web design company washington dc260$7.1729
website development washington dc110no bid data13
web developer washington dc20$15.49no data

Google and Bing autocomplete, read 24 October 2026, also completed: “web development washington dc”, “web design company in washington dc”, “website design washington dc”. Autocomplete shows phrasings people type, not volumes.

Semrush · semrush.com/analytics/keywordoverview · Google and Bing autocomplete

Photo credit

The west front of the United States Capitol in Washington, DC, under a clear blue sky.

CreditPhoto: Noclip / Wikimedia Commons, public domain (no credit required)
LicensePublic domain
Sourcecommons.wikimedia.org/wiki/File:Capitol_Building_Full_View.jpg
Changescropped to 16:9, resized

Our Google Business Profile figures

What our Google listing showed when a person at OneAlgorithm read it. We quote the figures; the reviews are not marked up as ratings on this page.

ListingOneAlgorithm Consulting
Rating5.0 from 6 reviews
Place idChIJnQw01SfzxokRJhcvpzCljCE
Read on23 October 2026
Map linkmaps.app.goo.gl/kVEeTz9dCyB64CGk6

Hero photograph: Noclip / Wikimedia Commons, public domain (no credit required)