List of Engineering consultants in District of Columbia
The District of Columbia has 123 engineering consultants in this dataset, last verified September 6, 2026. It ranks 46th of 50 states with 0.4% of the national total, between Hawaii (124) and North Dakota (122).
Washington is the largest city market we track, with 137 engineering consultants. That city holds 111% of the state total, so covering it reaches most of the market.
Email reach in the District of Columbia runs above the national rate: 50 engineering consultants (40.7%) include an email address, against 34.4% across the United States. 118 (95.9%) list a phone number, and 49 carry both.
91.1% of engineering consultants in the District of Columbia have a website, in line with the national average of 86.2%. Only 11 lack a site, so pitch redesigns and SEO rather than first-time builds.
Among the 60 rated engineering consultants in the District of Columbia, 58% hold a 5-star average, below the national figure of 69%. 4 are rated 1 to 2 stars (6.7% of rated businesses, well above the national 4.9%), a natural shortlist for reputation management and review software.
Social Media Reach
28
30
36
18
YouTube
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Engineering consultants List in District of Columbia
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| LOGO | Business Name | Address | City | State | Country | Phone | Website | Reviews | Rating | FB | IG | LI | YT | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Loring Consulting Engineers, Inc. | Address | Washington | District of Columbia | United States | Email | Phone | 0 | 0 | — | — | — | — | ||
 | Designgreen, LLC | Address | Washington | District of Columbia | United States | Email | Phone | 0 | 0 | — | |||||
 | Syska Hennessy Group, Inc | Address | Washington | District of Columbia | United States | Email | Phone | 1 | 4 | — | — | — | — | ||
Veracity Engineering | Address | Washington | District of Columbia | United States | Email | Phone | 2 | 4.5 | — | — | — | — | |||
Mc Graw-Hill Corporation Washington | Address | Washington | District of Columbia | United States | Email | Phone | 0 | 0 | — | — | — | — | |||
 | Hamiltonian Group | Address | Washington | District of Columbia | United States | Email | Phone | — | 0 | 0 | — | — | — | — | |
Progeny Systems Corporation | Address | Washington | District of Columbia | United States | Email | Phone | 0 | 0 | — | — | — | — | |||
 | RK&K | Address | Washington | District of Columbia | United States | Email | Phone | 3 | 3 | ||||||
 | ECS Capitol Services, PLLC | Address | Washington | District of Columbia | United States | Email | Phone | 2 | 3 | — | — | — | — | ||
 | Arcadis Washington DC | Address | Washington | District of Columbia | United States | Email | Phone | 6 | 5 | — | |||||
Tau Alpha Pi | Address | Washington | District of Columbia | United States | Email | Phone | 0 | 0 | — | — | — | — | |||
 | Grotheer & Co | Address | Washington | District of Columbia | United States | Email | Phone | 0 | 0 | — | — | — | — | ||
 | Wood | Address | Washington | District of Columbia | United States | Email | Phone | 0 | 0 | — | — | — | — | ||
ICI Services | Address | Washington | District of Columbia | United States | Email | Phone | 0 | 0 | — | — | — | ||||
 | WSP USA | Address | Washington | District of Columbia | United States | Email | Phone | 0 | 0 |
This is a randomized preview — the full database contains 123 records with complete field coverage.
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123 verified records — emails, phones, social profiles and more. One-time payment, instant download.
Distribution by Location
Number of Engineering consultants across different territories
City | Engineering consultants |
|---|---|
Washington | 137 |
What You Can Do with the List of Engineering consultants in District of Columbia
This list is built for teams that sell to engineering consultants: B2B software vendors, white-label partners and managed IT providers. It covers 123 engineering consultants in the District of Columbia, with the fields to call, email, segment and map them.
Who Sells to Engineering consultants in the District of Columbia
Each of these buyers can work the 123 businesses in this list as a pipeline for a different product:
- B2B software vendors: Pitch CRM, project management, proposal and invoicing tools to the 123 engineering consultants in the District of Columbia.
- White-label and outsourcing partners: Offer overflow or white-label work that firms can deliver under their own brand.
- Managed IT and office service providers: Sell IT support, business phones, backups and security to small offices.
Phone, Email and Facebook Outreach in the District of Columbia
Start with the 49 records that list both a phone number and an email address, then widen out channel by channel:
- Cold calling (118): 95.9% of records include a phone number for call campaigns, appointment setting and follow-ups.
- Email sequences (50): 40.7% of records include an email address, enough to run a dedicated cold email campaign alongside calls.
- Facebook messages (28): 22.8% have a Facebook page, a further channel when calls and emails go unanswered.
- CRM import: CSV and Excel files load into HubSpot, Salesforce, Zoho or Pipedrive, with city, state and postal code columns for assigning leads to reps.
Prospect Segments for Agencies in the District of Columbia
Filter the website, rating and social columns to pull the engineering consultants that fit a specific service before you pitch:
- Rated 1 to 2 stars (4): businesses with poor Google ratings, prospects for reputation management and review generation services.
- No Facebook page (95): 77% have no Facebook page on record, an opening for social media management agencies.
Prioritize Cities Across the District of Columbia
The 123 engineering consultants in the District of Columbia are spread across 1 cities we track, so rank areas before sending reps out:
- Postal code patches: records include postal codes, so each rep can get a compact patch with no overlapping accounts.
- Route planning: records include latitude and longitude, so you can map accounts and plan visit days around clusters.
Data Coverage for Engineering consultants in District of Columbia
123 records · verified September 6, 2026
- Phone numbers
- 118
- Email addresses
- 50
- Phone and email
- 49
- Websites
- 112
Google ratings· 60 rated (49%)
58% hold 5 stars
- 1-star rated
- 3
- 5% of rated
- 2-star rated
- 1
- 1.7% of rated
- 3-star rated
- 11
- 18.3% of rated
- 4-star rated
- 10
- 16.7% of rated
- 5-star rated
- 35
- 58.3% of rated
Social profiles:
- LinkedIn:36· 29.3%
- Instagram:30· 24.4%
- Facebook:28· 22.8%
- X (Twitter):21· 17.1%
- YouTube:18· 14.6%
Engineering consultants in the District of Columbia are a mixed-channel, LinkedIn-heavy market: 95.9% list a phone number and 40.7% publish an email. Among 60 rated engineering consultants, 58% hold 5 stars, a mostly positive spread.
Related Engineering consultants by Location
Browse datasets for Engineering consultants across nearby locations
Frequently asked questions about Engineering consultants in District of Columbia
Everything you need to know about our engineering consultants database for District of Columbia: data quality, coverage, freshness, pricing, and formats. Last updated September 6, 2026.
How many Engineering consultants are there in District of Columbia?
There are 123 engineering consultants in District of Columbia in our verified database, as of September 6, 2026.
This covers independent operators, regional chains, and enterprise-scale businesses, across every city in District of Columbia, for sales prospecting, competitive research, and territory planning.
How up to date is the Engineering consultants data for District of Columbia?
This dataset was last updated in September 6, 2026.
Business contact data decays at roughly 2–3% per month as businesses close, move, or change details, so we re-verify our most-purchased datasets on a rolling basis.
Every file is also run through email verification before delivery, and past buyers are offered discounted refreshed versions as updates ship.
What fields are included in the Engineering consultants database for District of Columbia?
Each record can include: business name, full address, phone number, email address, website URL, social profiles (LinkedIn, Facebook, Instagram, YouTube, X), review ratings, and category details, plus contact-page URLs where available.
Field coverage varies by record; the counts below and the free sample show you exactly what to expect before buying.
Where can I buy verified market intelligence data for Engineering consultants businesses in District of Columbia?
InfiniteLeadsHub provides verified market intelligence datasets for engineering consultants businesses in District of Columbia as a one-time purchase with no subscription.
Ideal for market research, sales planning, and business development.
How much does the Engineering consultants database for District of Columbia cost?
The complete engineering consultants leads database for District of Columbia costs $10 as a one-time payment.
You get instant access to all 123 records with no recurring fees, no per-record charges, and no seat limits.
It is a cost-effective alternative to subscription platforms that charge monthly for the same public business data.
Is this a cheaper alternative to subscription lead databases like ZoomInfo or Apollo?
Yes. For teams that need engineering consultants contacts in District of Columbia specifically, a one-time $10 file is usually far cheaper than subscription platforms, which typically charge thousands of dollars per year with contracts and per-seat pricing.
Subscriptions make sense for large sales teams needing continuous multi-industry access; a one-time targeted list makes sense when you know exactly which niche and geography you're selling into.
Can I preview a sample of the Engineering consultants data before buying?
Yes. A free sample dataset is available so you can evaluate data quality, field coverage, and format before purchasing.
The sample is a representative slice of the full District of Columbia engineering consultants database, including contact fields, social profiles, and ratings data.
How do I download the Engineering consultants list, and what file formats are available?
You get instant access after purchase. Files are delivered in CSV and Excel (XLSX) formats.
CSV and Excel import directly into CRMs like Salesforce, HubSpot, and Zoho and into any email platform.
How many Engineering consultants in District of Columbia have phone numbers?
118 engineering consultants in District of Columbia (96% of the database) include a phone number.
That makes the dataset effective for cold calling, telemarketing, and appointment setting campaigns.
How many Engineering consultants in District of Columbia have email addresses?
50 engineering consultants in District of Columbia (41%) include an email address.
Email remains one of the highest-ROI B2B outreach channels, making this subset ideal for cold email sequences, product announcements, and drip campaigns.
How many Engineering consultants in District of Columbia have both a phone number and an email address?
49 engineering consultants in District of Columbia have both a phone number and an email address.
Dual-contact records enable multi-channel outreach: combining calls with email follow-ups measurably improves response rates.
How many Engineering consultants in District of Columbia are active on social media?
Social profile coverage for engineering consultants in District of Columbia: 36 on LinkedIn, 28 on Facebook, 30 on Instagram, 18 on YouTube, 21 on X (Twitter).
Social presence signals digitally engaged businesses, which is useful for agencies pitching social media services, ad platforms building audiences, and vendors targeting digitally mature prospects.
How many Engineering consultants in District of Columbia have a website?
112 engineering consultants in District of Columbia (91%) have an active business website.
That is an indicator of digital maturity, and an ideal segment for SEO agencies, hosting providers, and SaaS platforms.
How many Engineering consultants in District of Columbia do not have a website?
11 engineering consultants in District of Columbia operate without a business website.
These are high-intent, overlooked prospects for web design agencies, local SEO providers, and Google Business optimization services.
What are the review ratings of Engineering consultants in District of Columbia?
Rating breakdown for engineering consultants in District of Columbia: 35 with a 5-star rating, 10 with a 4-star rating, 11 with a 3-star rating, 1 with a 2-star rating, 3 with a 1-star rating.
Top-rated businesses suit premium services and partnership proposals; lower-rated businesses are receptive prospects for reputation management, review tools, and operational software.
Can I get Engineering consultants data for other states or the entire US?
Yes. The national Engineering consultants database covers all 50 US states, and individual state and major-city lists are also available.
If you buy District of Columbia first, contact us and we'll credit your purchase toward the national upgrade.
Most multi-state buyers save money going national.
Is the Engineering consultants contact data in District of Columbia legal to use for B2B outreach?
Yes. All data is sourced exclusively from publicly available information: Google Business listings, company websites, social media profiles, and public business directories.
This is business contact information, not personal consumer data, making it appropriate for B2B prospecting.
We recommend following applicable regulations such as CAN-SPAM (US), CASL (Canada), and GDPR (EU-targeted campaigns) so your outreach remains fully compliant.