Insights

Local Government Focus Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. specializes in local government matters, suggesting sales opportunities with municipalities and related agencies for legal services, compliance, and advisory needs.

Public Pension Expertise The firm’s emphasis on public pension work indicates potential cross-sell for city and state employee pension plan governance, actuarial consulting adjacencies, and retirement benefit administration support.

Mid-Sized Firm With 11-50 employees and revenue in the 10–25 million range, there is room to scale partnerships, preferred vendor arrangements, and co-counsel opportunities with larger firms for complex local matters.

Business & Transactions Strength in business, commercial transactions, and estate planning signals opportunities with local businesses seeking ongoing transactional counsel, contract reviews, succession planning, and estate-related planning.

Technology Enablement Adoption of standard legal tech and analytics tools (Google Tag Manager/Analytics, JSON-LD, LiteSpeed, Open Graph) provides a foundation for targeted digital outreach, client onboarding optimization, and measurable marketing ROI to attract institutions and corporate clients.

Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. Tech Stack

Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. uses 8 technology products and services including gstatic.com, Cornerstone, JSON-LD, and more. Explore Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s tech stack below.

  • gstatic.com
    Content Delivery Network
  • Cornerstone
    Human Resource Management System
  • JSON-LD
    Javascript Frameworks
  • jQuery
    Javascript Libraries
  • Mailcheck
    Javascript Libraries
  • X-Content-Type-Options
    Web & Portal Technology
  • GoDaddy
    Web Hosting
  • LiteSpeed
    Web Servers

Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s Email Address Formats

Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. uses at least 2 format(s):
Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. Email FormatsExamplePercentage
FLast@ottosenbritz.comJDoe@ottosenbritz.com
96%
First.Last@ottosenbritz.comJohn.Doe@ottosenbritz.com
4%
FLast@ottosenlaw.comJDoe@ottosenlaw.com
100%

Frequently Asked Questions

What is Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s phone number?

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You can contact Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'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 Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s official website and social media links?

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Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s official website is ottosenlaw.com and has social profiles on LinkedIn.

How much revenue does Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. generate?

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As of August 2026, Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s annual revenue is estimated to be $10M - $25M.

What is Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s NAICS code?

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Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s NAICS code is 54111 - Offices of Lawyers.

How many employees does Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. have currently?

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As of August 2026, Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. has approximately 46 employees across 2 continents, including North AmericaEurope. Key team members include Chief Executive Officer: G. S.Associate: C. C.Freelance Senior Cms Specialist | Electrical Consultant: F. O.. Explore Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s employee directory with LeadIQ.

What industry does Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. belong to?

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Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. operates in the Law Practice industry.

What technology does Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. use?

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Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s tech stack includes gstatic.comCornerstoneJSON-LDjQueryMailcheckX-Content-Type-OptionsGoDaddyLiteSpeed.

What is Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s email format?

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Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s email format typically follows the pattern of FLast@ottosenbritz.com. Find more Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. email formats with LeadIQ.

When was Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. founded?

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Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. was founded in 1992.
Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. logo

Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.

Law PracticeIllinois, United States11-50 Employees

Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. is a law practice based in the suburban Chicago area, offering services across local government, business, public pension, labor and employment, commercial transactions, estate planning and probate. Serving clients in these areas, the firm addresses regulatory, transactional, and succession-related legal needs, helping navigate governance, employment relations, and contractual matters. Positioned within the regional legal landscape, it operates as a local- and specialty-focused firm with a footprint suited to public sector, business, and individual client matters. The firm’s base in the Chicago suburbs situates it to work with entities and individuals seeking competent guidance on government and transactional law, estate planning, and probate. As a smaller practice, it emphasizes a focused practice area mix and client-centered service in its region.

Section iconCompany Overview

Phone number
NAICS Code
54111 - Offices of Lawyers
Founded
1992
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s revenue is estimated to be in the range of $10M - $25M

Section iconFunding & Financials

  • $10M - $25M

    Ottosen DiNolfo Hasenbalg & Castaldo, Ltd.'s revenue is estimated to be in the range of $10M - $25M

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