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Top SEO Companies in Washington, DC

businesses screened
471
qualified
33
listed
5

Plenty of firms say they are in Washington, DC, and fewer are. We found 471 businesses across the metro, 204 that offer SEO, and five we would list. Several of the firms we removed had a Washington address that turned out to be a shared business-centre suite, with the team somewhere else. Only two of the 33 agencies we scored publish a monthly price. This list comes from a review of the SEO agencies we could find in DC, Northern Virginia and suburban Maryland: what they publish, what they’ve proven, what clients say, and how they rank for their own city.

The short answer For SEO alongside paid media, start with PBJ Marketing. For law firms, BluShark Digital. For small and mid-size businesses that want a long-tenured team, TESSA Marketing & Technology. For large consumer brands, Silverback Strategies. For HVAC contractors, RS Gonzales.

Read all five →

Reviewed by Andrew Eagar, fractional SEO · Reviewed · Next review January 2027

No agency paid to be listed or can pay to change its position. I run a fractional SEO practice, which some businesses hire instead of an agency, so I don't rank myself here. Our Google Maps pull covered about 35 km around central DC, and we added firms from search results and AI answers. An office anywhere in the Washington metro area counted as local. About 110 websites were blocked, offline or had too little readable text, including some firms that rank well locally; those agencies could not be assessed and are not listed. One of our 12 search checks failed and two returned results we could not attribute, so ranking counts rest on the searches we could read. How we reviewed

Side by side

Compare Washington DC’s top SEO agencies

AgencyBest forStarting priceSEO case studiesGoogle ratingMedian tenureContract
PBJ Marketing SEO alongside paid media Not published Several 5.0 (40) 4.1 yrs Not published
BluShark Digital Law firms only Not published Several 4.9 (171) 3.1 yrs Not published
TESSA Marketing & Technology Small and mid-size businesses Not published Several 5.0 (42) 13.0 yrs Monthly, 6-month minimum
Silverback Strategies Large consumer brands Not published Several Not published 2.8 yrs Not published
RS Gonzales HVAC contractors $2,200/mo Several 5.0 (45) 2.8 yrs 6 or 12 months by plan

Prices and terms as published on each agency's site, October 2026. Tenure is the median from LinkedIn company data.

The five

The five agencies, reviewed

Top pickBest for businesses that want SEO and paid media run by one team

PBJ Marketing

5.0 on Google (40) · 4.9 on Clutch (108) · Navy Yard, DC · Founded 2011

Why we picked them

  • Top 10 for 5 of the DC SEO searches we could read, and named in 7 of 15 AI-assistant answers.
  • Named SEO case studies, such as MATClinics' local traffic up 123% and form submissions up 343%.
  • A DC team with a Director of AI Search & SEO on its site, 32 people on LinkedIn and a 4.1-year median tenure.

What clients say

Recent Google reviews praise responsiveness and paid media work; one credits SEO directly. Clutch shows 4.9 from 108 reviews across its services. the SEO side has been steadily building traffic and leads — Google reviewer, 2025

Watch-outs

Paid media leads the business: only some of its case studies are SEO, and most recent Google reviews are about other work. Headline case-study figures are percentages without starting numbers or dates. No prices, contract terms or reporting details on the site.

2 · Law firms that want a legal-only SEO specialist

BluShark Digital

4.9 on Google (171) · 4.9 on Clutch (12) · Northeast DC · 119 on LinkedIn

Why we picked them

  • In the local pack for 8 of the 11 DC SEO searches we could check, the strongest local showing among qualified agencies.
  • Named in 11 of 15 AI-assistant answers.
  • Works only with law firms, with 119 people on LinkedIn and a 3.1-year median tenure; 4.9 on Google from 171 reviews.

What clients say

Most reviews praise account managers and communication. A recurring minority of 1- and 2-star reviews, several from the past year, say the SEO results did not justify the cost. He is professional, responsive, and always willing to help with our website and SEO needs. — Google reviewer, 2026

Watch-outs

Read the low reviews before signing: clients describe poor returns and, in one case, lost rankings, and one mentions a 14-month contract. Results on its site are percentages with no starting figures or dates, and it does not explain its reporting or publish prices. Its case studies promote opening "satellite offices" to win Google Maps placement; ask whether any such address would be staffed, since Google's guidelines require a real location.

3 · Small and mid-size businesses that want a small, long-tenured team

TESSA Marketing & Technology

5.0 on Google (42) · 5.0 on Clutch (1) · McLean, VA · Founded 2012

Why we picked them

  • The most stable team we reviewed: a 13-year median tenure among the 5 people on LinkedIn.
  • A dated case study with start and end figures: General Recreation went from 750 monthly visitors to nearly 1,800, with 74 number-one keyword rankings by month 17.
  • States its terms and reporting: monthly retainers with a 6-month minimum, and monthly reports on what moved and what comes next.

What clients say

Google reviewers credit it with SEO results and long working relationships; several have stayed for years. Since I've partnered with them on my SEO and PPC campaigns, my rankings have soared! — Google reviewer, 2024

Watch-outs

Its best-documented case study dates from 2016–17, and its newest Google review we found is from September 2025. It doesn't rank in the DC SEO searches we could read and no AI assistant named it. Many awards it lists are paid-entry contests or list badges. No published price, and a 5-person team has limited capacity.

4 · Large consumer brands that want SEO with paid media and measurement

Silverback Strategies

4.9 on Clutch (27) · Leesburg, VA (mailing address) · Founded 2007

Why we picked them

  • Named in 12 of 15 AI-assistant answers, more than any other agency.
  • 27 Clutch reviews at 4.9, including SEO and site-migration work for national organisations.
  • Founded in 2007, with a Senior Director of SEO, 42 people on LinkedIn and a 2.8-year median tenure; top 10 for 2 of the DC SEO searches we could read.

What clients say

Clutch reviewers praise communication and knowledge. Most of the reviews are from 2018–2020 and many cover paid media as well as SEO. Silverback’s invested in our success and willing to be a partner. — Nancy W., Clutch, 2020

Watch-outs

Not for small budgets: it says it serves brands with $100M+ in revenue, and Clutch lists a $10,000 minimum project. The only address on its site looks like a mailbox in Leesburg, though Clutch lists Arlington. It has no Google reviews that we could find. Case-study figures are percentages without starting numbers, and headcount is down 7% over two years.

5 · HVAC contractors that want SEO and ads in one published package

RS Gonzales

5.0 on Google (45) · No Clutch reviews · Friendship Heights, DC · Founded 2023

Why we picked them

  • One of only two scored DC agencies with a monthly price: plans from $2,200, bundling SEO, Google Ads and Google Business Profile work.
  • Case studies with start and end figures, such as an air-duct company's monthly Google impressions going from 4,800 to 27,500.
  • Explains its reporting: a monthly strategy call, a quarterly review and a live dashboard covering cost per lead and per booked job.

What clients say

Recent Google reviews from contractors praise communication and teaching; one credits organic leads. we’ve started seeing real results, including organic leads coming directly from the work — Google reviewer, 2026

Watch-outs

HVAC and related trades only, and its case-study clients are outside the DC area. The DC presence is the two owners at a shared office suite; the company says most people on an account work from Pakistan. Founded in 2023. One page says plans run 6 or 12 months and another says 12 months then monthly, so get the term in writing. It doesn't rank in the DC SEO searches we could read and no AI assistant named it.

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Sample scorecard
Scope vs. delivery
B
Results vs. spend
C
Work quality
C
Reporting
D
Ownership and risk
A

Verdict: Fix

Illustrative example, not a real client.

First-party data

The Washington DC SEO market in numbers

6%
publish their pricing
58%
show SEO case studies with real numbers
18%
rank top 10 for their own Washington DC searches
10 of 33
get named by AI assistants for Washington DC SEO

Two of DC's 33 scored agencies publish a monthly price for SEO or a bundle that includes it, $1,200 and $2,200. Six rank in the top 10 or the local pack for any DC SEO search we could read.

Before you sign

What we saw that you should watch for

None of these rules an agency out on its own, but each is worth a question before you sign.

  • A DC address with no DC team Several firms use a shared business-centre suite or mail suite on their DC listing, with headquarters in another state and one DC page among hundreds of city pages. Ask who works on your account and where they sit.
  • Bought links Some DC-area agencies sell link packages outright, such as a set number of backlinks a month or guest posts. Paid links break Google's guidelines; ask how links are earned.
  • Ranking promises A few promise page one or answer "yes" to whether they guarantee rankings. Nobody controls Google's rankings; read what a guarantee actually covers.
  • Case studies you can't check More than half the agencies we scored show numbers, but most are percentages with no starting point or date. We also found a case-study page with filler text under its headline results, and testimonials followed by unfilled template text. Ask for the starting figures.
  • Awards and badges Many of the awards on DC agency sites are paid-entry contests or list badges. They say little about SEO results, so ask what the award was given for and who judged it.
  • Almost no published prices Only two of the 33 agencies we scored publish a monthly price. Get the price, the term and the exit notice in writing before comparing proposals.
  • Check their own site One agency's blog was publishing dozens of foreign-language betting posts during our review. Look through an agency's recent posts before you hand over your website.

Method

How we reviewed

Every agency went through the same three rounds, each looking harder at fewer agencies.

  1. Screen. Names SEO as a service, has a Washington DC-area office, active in the last 12 months, names real people, has client reviews. Guaranteed rankings or paid link schemes rule an agency out.
  2. Qualify. Proof of results, rankings for their own Washington DC searches, reputation, transparency, SEO depth and awards.
  3. Deep dive. For the top 10: review text, team stability on LinkedIn, and 15 AI-assistant answers.

No agency paid to be included, and none was contacted. We re-check each quarter. Send a correction · Full methodology

Five of 471 made the list

Found in Washington DC471

Offer SEO204

Passed the screen33

Deep-dive finalists13

Listed5

FAQ

Questions, answered

How much does an SEO company cost in Washington, DC?

Few say. Two of the 33 DC agencies we scored publish a monthly price, $1,200 and $2,200, both bundles. Among our five picks, only RS Gonzales publishes one; Clutch lists minimum projects of $1,000 to $10,000 for the others.

How do I choose an SEO agency in Washington, DC?

Ask for case studies with starting figures and dates, the contract length and exit terms, and who will do the work. Read the newest and lowest reviews, and check that the team is really in the DC area.

Do you count Northern Virginia and Maryland agencies?

Yes. An office anywhere in the Washington metro area counted, including Arlington, Alexandria, Fairfax and Loudoun in Virginia and Montgomery and Prince George's in Maryland. Three of our five picks list a DC address and two list a Virginia one.

Which SEO agencies do AI assistants recommend in DC?

We asked ChatGPT, Perplexity and Gemini five questions each. Silverback Strategies appeared in 12 of the 15 answers and BluShark Digital in 11, together 25% of all agency mentions. Being named isn't proof of results: two of our picks weren't named at all.

Is your list paid?

No. Agencies can't pay to be listed. We review every agency we can find against the same rubric, and The Fractional SEO is never ranked on these pages.

Photo of Andrew Eagar

About the reviewer

Andrew Eagar

Andrew Eagar has worked in SEO since 2008. He has been Director of SEO at four agencies, built SEO departments from the ground up and led teams of more than 20 SEOs, on brands including Twitter, Amazon, S&P Global, PGA Tour, Allstate and Seagate. He has contributed to Moz and Clutch, and today runs The Fractional SEO in Virginia. LinkedIn