Insights

Longstanding expertise Gillan & Hartmann is a third generation family-run engineering firm with a track record of 4,000+ projects and a construction value exceeding $2.75B, indicating reliability and deep domain knowledge to win repeat healthcare, commercial, industrial, institutional, and government work.

Cost discipline The firm reports design change orders at less than 0.5% of construction budgets and cost estimates within +/-5% of awarded bids, signaling strong cost control and predictability that can be leveraged in competitive bidding scenarios.

LEED and energy focus Certified LEED AP professionals and experience with green architecture, cogeneration, total energy plants, and utility master planning present opportunities with clients prioritizing sustainability and energy efficiency projects.

Prime project leadership Extensive experience serving as Project Prime Professional for budget, schedule, quality, and commissioning positions G&H as a potential lead contractor for complex, multi-stakeholder projects demanding integrated delivery.

Diverse client base Diversified client exposure across healthcare, commercial, industrial, education, multi-occupancy residential, and government sectors provides cross-selling opportunities and resilience against sector-specific downturns.

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Gillan & Hartmann, Inc. Tech Stack

Gillan & Hartmann, Inc. uses 8 technology products and services including Google AdSense, WordPress, CookieYes, and more. Explore Gillan & Hartmann, Inc.'s tech stack below.

Gillan & Hartmann, Inc.'s Email Address Formats

Gillan & Hartmann, Inc. uses at least 4 email formats:
Gillan & Hartmann, Inc. Email FormatsExamplePercentage
FLast@gillan-hartmann.comJDoe@gillan-hartmann.com
71%
LastFirst@gillan-hartmann.comDoeJohn@gillan-hartmann.com
10%
FiLast@gillan-hartmann.comJoDoe@gillan-hartmann.com
9%
Last@gillan-hartmann.comDoe@gillan-hartmann.com
10%

Frequently Asked Questions

What is Gillan & Hartmann, Inc.'s phone number?

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You can contact Gillan & Hartmann, Inc.'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 Gillan & Hartmann, Inc.'s official website and social media links?

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Gillan & Hartmann, Inc.'s official website is gillan-hartmann.com and has social profiles on LinkedIn.

How much revenue does Gillan & Hartmann, Inc. generate?

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As of October 2026, Gillan & Hartmann, Inc.'s annual revenue is estimated to be $10M - $25M.

What is Gillan & Hartmann, Inc.'s SIC code and NAICS code?

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Gillan & Hartmann, Inc.'s SIC code is 8712 - Architectural Services and NAICS code is 5413 - Architectural, Engineering, and Related Services.

How many employees does Gillan & Hartmann, Inc. have currently?

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As of October 2026, Gillan & Hartmann, Inc. has approximately 13 employees across 1 continents, including North America. Key team members include Chief Executive Officer: M. B., Vice President, Client Relationship Manager: C. S. and Accounting Manager: N. B. Explore Gillan & Hartmann, Inc.'s employee directory with LeadIQ.

What industry does Gillan & Hartmann, Inc. belong to?

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Gillan & Hartmann, Inc. operates in the Engineering Services industry.

What technology does Gillan & Hartmann, Inc. use?

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Gillan & Hartmann, Inc.'s tech stack includes Google AdSense, WordPress, CookieYes, oEmbed, Microsoft 365, WP Engine, Hostinger and OpenResty.

What is Gillan & Hartmann, Inc.'s email format?

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Gillan & Hartmann, Inc.'s email format typically follows the pattern of FLast@gillan-hartmann.com. Find more Gillan & Hartmann, Inc. email formats with LeadIQ.

When was Gillan & Hartmann, Inc. founded?

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Gillan & Hartmann, Inc. was founded in 1950.
Gillan & Hartmann, Inc. logo

Gillan & Hartmann, Inc.

Engineering ServicesPennsylvania, United States11-50 Employees

Gillan & Hartmann, Inc. is a mid-sized engineering services firm based in Audubon, Pennsylvania, operated as a third-generation, family-owned business. With a history spanning more than five decades, it provides engineering and design solutions aimed at cost efficiency. The firm has completed more than four thousand projects across multiple sectors.

It emphasizes precise cost estimation and design quality, noting that design-based change orders account for less than 0.5% of the construction budget and that estimates typically fall within 5% of the awarded bid, with many proposals landing in the lower end of competitive bids. Gillan & Hartmann regularly collaborates with Project Architects for Healthcare, Commercial, Industrial, Institutional, Elementary and Higher Education, Multi-Occupancy Residential, and Governmental clients, and frequently acts as the Prime Professional to manage budget, schedule, quality, and commissioning. The firm maintains LEED AP, energy management, and green building expertise, with projects involving green architecture, cogeneration, total energy plants, and utility master planning, and it has developed a diversified client base.

Section iconCompany Overview

Phone number
SIC Code
8712 - Architectural Services
NAICS Code
5413 - Architectural, Engineering, and Related Services
Founded
1950
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    Gillan & Hartmann, Inc.'s revenue is estimated to be in the range of $10M - $25M

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