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DONAN Overview

Louisville, KY
201 to 500 employees
Company - Private
Architectural & Engineering Services
Unknown / Non-Applicable
Donan is a full-service, world class, forensic investigation firm with offices throughout the United States. Our services include forensic engineering, fire investigation, component testing, HVAC forensics, UAV services, and Litigation Support. Since ... Read more

Mission: Our mission is to provide conclusive, unbiased and accurate forensic investigation services with the fastest turnaround time and best customer service in the industry.

Company Updates

  • Donan is committed to employee wellness. Louisville Business First recognized DONAN as a finalist for the 2016 Healthiest Employers of Greater Louisville award. We were honored to be acknowledged for our commitment to creating a healthy workplace.

  • Helping others succeed is part of our culture at Donan. Employees came together for an ice cream social to benefit West End School. We are proud to be involved with such a great organization that fosters a culture of personal growth and character.

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DONAN – Why Work For Us?


Donan is a full-service, world class, forensic investigation firm with offices throughout the United States.  Their services include forensic engineering, fire investigation, component testing and HVAC investigation. 

Since 1947, Donan's expert investigators have utilized a rewind approach to research incidents, reconstruct events and reveal causes.  

Our Mission: To consistently provide conclusive, unbiased and accurate forensic investigation services with the fastest turnaround time and best customer service in the industry.

Our Logo: The level rod target.

  • The Level Rod – We strive to keep our abilities and professionalism balanced and on the level.
  • The Target – We aim to keep our work on target, exceeding our clients turnaround time and customer service expectations with a fair, competitive price.
  • The Number Seven – In biblical scripture the number seven symbolizes completeness; we work to consistently deliver a complete service, well-done and guaranteed

Service Lines: Forensic Engineering, Fire Investigation, Component Testing, and HVAC Forensics


Founded: 1947

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Those of us that are part of the Donan family know that it is a great place to work. We want the rest of the world to know too. Get "A Glimpse Into Donan," as told by those who know it best. Watch the video, then search our current openings to find your spot in our business family.

Donan continues its legacy of innovation by providing leading-edge investigation tools.  We are the first and only forensic firm to utilize an unmanned ground vehicle in an investigation, and we provide an expansive UAV program, deploying pilots from 16 locations across the country.  For nearly seven decades clients have turned to Donan for first-rate expertise, conclusive answers, and superior insights through innovation.


Donan is a third generation engineering firm that began in 1947 in Madisonville, KY, by John Donan Sr., a Civil and Mining Professional Engineer.  Since its beginning, the company has been family-owned and values-driven, building its reputation by being a consistent source of unbiased expertise.

The Beginning
In the company’s early years, John Donan Sr. offered mining design and drilling services primarily to coal companies.  John G. Donan Jr., Donan’s current Chairman of the Board, joined his father’s business in 1964, specializing in soil and foundation investigations, as well as boundary and topographic surveys. The first computer in Madisonville was purchased by the company in 1965 to perform surveying calculations, giving the Donans an early reputation as innovators.

Expertise in High Demand
The surveying and mine businesses flourished. The company also gained large contracts for mineral appraisals.  Because of his superior knowledge and experience in mining design, John Donan Sr. worked with the Kentucky Highway Department to align several major parkways through the state in order to minimize disruption and loss of coal reserves.  In 1973 the Donans continued to be sought-out for their expertise, this time for coal consulting services for a high-profile client in South America.  Anastasio Somoza, the President of Nicaragua, was a client until his assassination in 1980.

Forensic Engineering Takes Off
By the mid-1960s, Donan Engineering, Inc. was regularly performing forensic engineering investigations as a result of claims against surface and underground mining companies for blasting and subsidence damage.  As forensic investigation became a larger part of the business, fire and explosion origin and cause was added to the company’s services.  By 2000, the company had offices in Jasper, Evansville, Indianapolis, and South Bend, Indiana, as well as in Louisville and Lexington, Kentucky.  Market challenges associated with design work and ongoing growth in forensic investigations prompted the decision to focus solely on forensic engineering and fire investigation.

A Leader in Innovation
Today Donan is one of the largest forensic investigation firms in the country.  Since 2000 the firm has grown to more than 50 offices spanning coast to coast, with diverse service offerings including Forensic Engineering, Fire Investigation, Component Testing, and HVAC Forensics. Donan continues its legacy of innovation with constant technological development (Donan Mobile launched in early 2014) and leading-edge investigation tools.  For nearly seven decades, clients have turned to Donan for first-rate expertise, conclusive answers, and superior insights through innovation.

DONAN Reviews

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Lyle Donan
18 Ratings
  • Helpful (2)

    "Great company - 10 years and still happy!"

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Regional Manager
    Current Employee - Regional Manager
    Positive Outlook
    Approves of CEO

    I have been working at DONAN full-time (More than 10 years)


    I've been with Donan for over 10 years. The company has grown by leaps and bounds over the past 5 - 7 years and has spread from coast-to-coast. Despite the "growing pains" any company would experience through such an expansion, Donan remains a great place to work with good benefits and great support. I'm in middle-level management and I can't say enough about the clarity I get from my leaders and the open door policy here. We're not the small company we were many years ago, but I can still say I'm proud to wear the logo, and would highly recommend Donan to anyone considering a career here.


    Growth has been tremendous and with growth comes pain and change, there's no way around it. Look around though...businesses are in constant change in today's world. I've seen some pretty ugly reviews lately and, through the anonimity of the net, people can say what they want and not be known, and be as brutal as they want. My initials are JE and I'm posting to rebut those reviews and tell people how great it really is to be a part of Donan. Is it frustrating at bet. What job isn't? But I still love the company, the people, and the support I get from my leadership!

    Advice to Management

    Keep up the clarity you give us. Listen to the troops when they grumble and try to see it through their eyes. It's a great place to work!

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DONAN Photos

DONAN photo of: Scio Surveyor 7.
DONAN photo of: Kickball for Kids Charity Event
DONAN photo of: 2016 Bronze Stevie Award - Customer Service Department of the Year 2016
DONAN photo of: Recruiting future engineers at a high school career fair!
DONAN photo of: Scio was a hit at the Science Center during Engineering Week!
DONAN photo of: HVAC Forensics conducts onsite destructive testing.
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DONAN Interviews



Getting an Interview

Getting an Interview




  1. Helpful (7)  

    Forensic Engineer Interview

    Anonymous Interview Candidate in Chicago, IL
    Declined Offer
    Positive Experience
    Average Interview


    I applied online. The process took 2+ weeks. I interviewed at DONAN (Chicago, IL) in May 2014.


    Apply online and if they like your resume, they set up a screener interview with an HR person in their Kansas office. If you pass the screener, then you talk to the Regional Manager by phone. The company doesn't have physical offices outside of their corporate office in Kansas so there are several phone calls rather than in-person interviews.

    Interview Questions

    • How do you manage difficult clients?   1 Answer
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DONAN Awards & Accolades

  • Healthiest Employers, Business First Louisville, 2015

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