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Leidos
Defence · Reston, United States · Founded 1969 · IPO 2010
Technology and engineering solutions for critical missions. MoreLess
Leidos is a Fortune 500 company that tackles some of the toughest challenges in defense, intelligence, healthcare, and civil government. In short, they provide the science, engineering, and technology to make the world safer, healthier, and more efficient, from modernizing air traffic control systems to deploying cybersecurity for critical missions. The company's story begins not as Leidos, but as Science Applications International Corporation (SAIC), founded in 1969 by Dr. J. Robert "Bob" Beyster. A nuclear physicist, Beyster started the company in La Jolla, California, with a unique vision: an employee-owned firm that would attract top scientific talent to solve complex government problems. This model fueled decades of growth as SAIC became a major contractor, involved in everything from nuclear safety to developing early luggage scanning systems. A pivotal moment came in 2013 when SAIC decided to split into two independent companies. The original company was rebranded as Leidos—a name inspired by the word "kaleidoscope"—to focus on high-end technology, engineering, and national security solutions. The other company retained the SAIC name and focused on government services. This new chapter as Leidos was marked by aggressive growth. A transformational merger with Lockheed Martin's IT and global solutions business in 2016 more than doubled the company's size, making it a dominant force in the federal technology space. Strategic acquisitions of companies like Dynetics in 2019 further expanded its capabilities in areas like defense research and space. Today, Leidos continues to expand its focus on digital modernization, cyber, and AI, tackling critical missions for a wide range of government and commercial customers.
Company overview
Leidos company information
The essential company record, classifications and operating signals in one place.
- Status
- Acquired
- Founded
- 1969
- Headquarters
- Reston, United States
- Employees
- 37,402
- Open positions
- 2,931
- Dealroom signal
- 80.1
- Investment activity
- 6 companies · latest Jan 2026
- Capital deployed
- $5M
- Preferred round
- ACQUISITION
Valuation & funding
Leidos funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| POST IPO DEBT✓Debt | Mar 2026 | $0 | — | Undisclosed | ↗ |
| IPO✓Exit | Sep 2013 | $0 | — | Undisclosed | — |
| ACQUISITIONExit | Apr 2010 | $0 | — | SAIC International Holdings | — |
| SERIES CEquity / VC | Mar 2008 | $33M | $130M | Greylock Partners · General Catalyst · Flybridge Capital Partners · BBH Capital Partners | — |
| SERIES BEquity / VC | Jan 2005 | $5M | $20M | Greylock Partners · General Catalyst · Flybridge Capital Partners | — |
| SERIES AEquity / VC | Jul 2003 | Undisclosed | — |
Financials
Revenue, earnings and profit over time
Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.
Growth signals
Leidos website traffic
Latest recorded traffic for Leidos is 660K monthly website visits, up 11.9% over the last three months. Leidos's team grew 32.7% over the past year.
Hiring
Open positions at Leidos
Current openings linked to this company in Dealroom.
Comparisons
Leidos compared with similar companies
Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.
Capital deployed
Leidos investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
ENTRUST Solutions GroupWarrenville, United StatesEngineering and consulting for utility and infrastructure markets
$2.4Bvaluation
KududynPalm Bay, United StatesAI-powered offensive cyber capabilities for national security.
→
TFF PharmaceuticalsAustin, United StatesEarly-stage biopharmaceutical company
−$2.3Mvaluation
HawkEye 360Herndon, United StatesDeveloper of a space-based radio frequency (rf) mapping and analytics system
$1.5Bvaluation
Gibbs & CoxArlington, United StatesNaval Architecture | Marine Engineering | Gibbs & Cox
$380Mvaluation
1901 GroupReston, United StatesInfrastructure, application, and security services to its clients
$215Mvaluation
E-ShareBoston, United Statese-Share.us | Secure Enterprise Collaboration with External Parties | Trusted Sharing, Secure Mail, Cloud Migration
→
Talent graph
Leidos's talent
Source: Dealroom Talent Intelligence.
Global footprint
Where Leidos has talent and traffic
team presence
In the news
Latest news about Leidos
Recent press, funding announcements, and product moves mentioning Leidos — open to read from the original sources.
Market sentiment
What the market is saying about Leidos
An AI-synthesized read of the highest-engagement posts about Leidos on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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