Preston Companies
As of 1 November 2026, Preston Companies has 6 open roles (0 new in 30 days), its engineering (non-software) team is hiring most, and its postings name HCSS HeavyBid, Microsoft Excel as the tools the team works in.
As of 1 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- Headquarters
- Milpitas, California, United States
- Employees
- 501-1000 employees (linkedin)
- Sells to
- building owners and facilities, civil engineers and architects, developers and construction managers
- Certifications on site
- Site languages
- EN
- Career system
- Jazzhr
Preston Companies in one screen
Read from prestonco.com: what the company does, the customers it names, the buyers we can actually see, and the companies that sell the same thing.
Preston Companies is a service provider that performs underground engineering, excavating and installing wet and dry utilities, soils testing and management, and fill site management. Its portfolio includes PrestonPipelines (storm drains, sewer, fire protection, natural gas, excavations), PrestonElectric (underground electrical systems, joint trenching), and DirtMarket (soils management). It serves building owners, civil engineers, developers, contractors, environmental firms, and government agencies across the Western United States.
Named on the site: building owners and facilities, civil engineers and architects, developers and construction managers, electrical contractors and engineers, environmental firms, general contractors, government and public agencies.
Nearest companies by what they do, sell and whom they serve, 51+ employees. 597 scored.
What Preston Companies says it runs
Tools named in the company's own postings as the team's systems, with the sentence that says so. What the website and DNS show is listed separately.
• Prepare detailed bid proposals using HCSS HeavyBid.• Proficient in construction estimating software including HCSS HeavyBid and Microsoft Excel.Vendors whose code loads on prestonco.com or whose records sit in its DNS. Page plumbing (libraries, fonts, consent banners) is left out.
6 open roles, 0 opened in 90 days
Read hourly from the company's career system. Open roles and new roles in the last 30 days, by team. Companies hiring engineering (non-software) in United States →
| open · new 30 d | |
|---|---|
| Engineering (non-software) | 3 · 0 |
| Construction and civil | 1 · 0 |
| Skilled trades and field service | 1 · 0 |
What is changing, read from the postings
Intents are events the employer states about itself, each with the sentence and the posting it came from.
No change signals read in the current postings.
Sales, marketing and IT leaders by function. Add Preston Companies to a monitor and get a webhook when a role opens, a tool appears or a signal is read.
Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.
Companies like Preston Companies
Nearest by what they do, what they sell and whom they sell to, 51+ employees. 6 of 597 scored.
From the company's own website
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Preston Companies (Milpitas, United States, 501-1000 employees) has 6 open roles, 0 new in 30 days, and names 2 tools in its postings. (Breaknorm, 1 November 2026, https://breaknorm.co/company/prestonco.com)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- ProfileBuilt from prestonco.com: summary, offerings, customers, certifications and contact points are extracted from its pages, with a confidence score per field.
- HiringRead hourly from the company's Jazzhr career site; reposts collapse into one record.
- Tech stackTools the employer's own text names as the team's systems, with the quote; website scripts counted separately.
- HeadcountLinkedIn where known, otherwise estimated from the site.
Preston Companies: questions
Does Preston Companies use HCSS HeavyBid?
Yes, by the company's own words: 1 posting name it, first seen 2026-10-21, in the construction and civil team.
Is Preston Companies hiring?
6 open roles as of 1 November 2026, 0 opened in the last 30 days and 0 closed. The largest team hiring is engineering (non-software).
Where does this profile come from?
From prestonco.com itself: we crawled it on 2026-09-09, built the profile on 2026-09-12, and read its career site (Jazzhr) hourly since. Headcount is from LinkedIn.
Who should I write to at Preston Companies?
The people are behind the login: decision makers by function, verified at the mail server when you open them. 0 public role addresses from the site are there too.
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The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
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