Insights

Public Sector Focus Spiegel & McDiarmid LLP specializes in representing public sector and consumer-owned infrastructure entities such as energy, telecommunications, and transportation. This indicates a client base with ongoing regulatory and compliance needs, presenting opportunities for advisory services, regulatory filing support, and litigation or guidance related to public ownership and rate setting.

Technical Communication The firm emphasizes lawyers who can communicate complex technical matters to clients, experts, judges, and others. This signals potential for selling advanced consulting on regulatory risk, expert testimony support, and litigation preparedness services that require technology-enabled collaboration and clear communication in high-stakes matters.

Steady Growth With a revenue range of 10 to 25 million and a modest 11-50 employees, the firm appears to be a mid-sized specialty practice. Growth opportunities may include expanding services to additional public infrastructure clients, partnerships with utility commissions, and cross-sell of strategic advisory or compliance programs to broaden revenue streams.

Brand Credibility Recognition as a Top Ranked Law Firm by Martindale-Hubbell and listings in Chambers USA and Chambers Global indicate strong credibility. This can be leveraged in outreach to public agencies and utility regulators for premium compliance, risk management, and federated procurement collaborations.

Tech Stack Alignment Usage of platforms like Microsoft 365, Azure, Mimecast, WordPress, and other collaboration tools suggests readiness for digital service delivery and secure client portals. Opportunities exist to propose modern matter management, e-billing, secure document exchange, and virtual lawyering solutions to streamline public sector engagements.

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Spiegel & McDiarmid LLP Tech Stack

Spiegel & McDiarmid LLP uses 8 technology products and services including Open Graph, WordPress, Microsoft 365, and more. Explore Spiegel & McDiarmid LLP's tech stack below.

Spiegel & McDiarmid LLP's Email Address Formats

Spiegel & McDiarmid LLP uses at least 4 email formats:
Spiegel & McDiarmid LLP Email FormatsExamplePercentage
First.Last@spiegelmcd.comJohn.Doe@spiegelmcd.com
86%
Last.First@spiegelmcd.comDoe.John@spiegelmcd.com
8%
FirstL@spiegelmcd.comJohnD@spiegelmcd.com
4%
Last@spiegelmcd.comDoe@spiegelmcd.com
2%

Frequently Asked Questions

What is Spiegel & McDiarmid LLP's phone number?

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You can contact Spiegel & McDiarmid LLP's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Spiegel & McDiarmid LLP's official website and social media links?

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Spiegel & McDiarmid LLP's official website is spiegelmcd.com and has social profiles on LinkedIn.

How much revenue does Spiegel & McDiarmid LLP generate?

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As of August 2026, Spiegel & McDiarmid LLP's annual revenue is estimated to be $10M - $25M.

What is Spiegel & McDiarmid LLP's SIC code and NAICS code?

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Spiegel & McDiarmid LLP's SIC code is 7389 - Business Services, Not Elsewhere Classified and NAICS code is 54111 - Offices of Lawyers.

How many employees does Spiegel & McDiarmid LLP have currently?

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As of August 2026, Spiegel & McDiarmid LLP has approximately 32 employees across 2 continents, including North America and Africa. Key team members include Partner: A. D., Partner: L. S. and Controller: L. A. Explore Spiegel & McDiarmid LLP's employee directory with LeadIQ.

What industry does Spiegel & McDiarmid LLP belong to?

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Spiegel & McDiarmid LLP operates in the Law Practice industry.

What technology does Spiegel & McDiarmid LLP use?

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Spiegel & McDiarmid LLP's tech stack includes Open Graph, WordPress, Microsoft 365, Mimecast, Microsoft Azure, Citrix, Adobe Creative Suite and Jetpack.

What is Spiegel & McDiarmid LLP's email format?

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Spiegel & McDiarmid LLP's email format typically follows the pattern of First.Last@spiegelmcd.com. Find more Spiegel & McDiarmid LLP email formats with LeadIQ.

When was Spiegel & McDiarmid LLP founded?

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Spiegel & McDiarmid LLP was founded in 1967.
Spiegel & McDiarmid LLP logo

Spiegel & McDiarmid LLP

Law PracticeDistrict of Columbia, United States11-50 Employees

Spiegel & McDiarmid LLP is a law practice based in Washington, DC, that represents public sector and consumer-owned entities within critical infrastructure sectors such as energy, telecommunications, and transportation. Founded in 1967, the firm emphasizes delivering high-quality legal services at a cost that public and consumer-owned clients can afford. Its lawyers are expected to handle technically complex issues and communicate clearly with clients, expert witnesses, judges, and others, while applying a broad perspective to problem solving.

The firm has earned recognition for its work, including being named a Top Ranked Law Firm by Martindale-Hubbell, a designation reflecting the AV ratings of its attorneys, and it is listed in Chambers USA and Chambers Global. Located in the nation’s capital, Spiegel & McDiarmid positions itself as a specialist practice serving infrastructure-related public interests. More information about the firm and current career postings is available on its website.

Section iconCompany Overview

Phone number
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
54111 - Offices of Lawyers
Founded
1967
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    Spiegel & McDiarmid LLP's revenue is estimated to be in the range of $10M - $25M

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