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Construction · head to head

Jonas Premier vs Sitemark

Jonas Premier logo

Jonas Premier

Construction

Comprehensive ERP for construction and engineering companies

From
$500/month
Rated
-
Full reviewWebsite
Sitemark logo

Sitemark

Construction

Drone-based progress tracking, quality control and commissioning built specifically for solar farms

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Jonas Premier priced per concurrent user license at $249/user/month (or $199/user/month on a longer term) as captured 2 February 2023, with a starting annual price of $30,000 for the higher tier; Sitemark it only does solar, so a mixed renewables portfolio still needs a second platform for wind, storage and substations, and the consolidation argument for buying it collapses.
  • They diverge on capability: Jonas Premier covers Project management, Sitemark covers Construction progress tracking.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Jonas Premier and Sitemark actually diverge.

Attributes where Jonas Premier and Sitemark differ
AttributeJonas PremierSitemark
Starting price$500/monthOn request
Pricing modelsubscriptionquote
PlatformsWeb, WindowsWeb, iOS, Android
Founded1996Unknown

Identical on both: free tier (No), user rating (Not yet rated), category (Construction).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Jonas Premier

  • Project management
  • Accounting
  • Job costing
  • Estimating
  • Equipment tracking
  • QuickBooks
  • Sage
  • Microsoft 365

Only in Sitemark

  • Construction progress tracking
  • As-built versus design comparison
  • Thermographic inspection
  • Defect localisation
  • Commissioning workflows
  • Ticketing and work management
  • Portfolio dashboards
  • Drone and robotics ingestion

What people use each for

The jobs each tool is most often brought in to do.

Jonas Premier

  • Financial managementnot Sitemark
  • Job costingnot Sitemark
  • Equipment trackingnot Sitemark
  • Payrollnot Sitemark

Sitemark

  • An EPC contractor on a multi-hundred-megawatt ground-mount plant that must report weekly installed counts to a lender and cannot do it by walking the rowsnot Jonas Premier
  • An asset owner accepting a plant at provisional acceptance who needs documented evidence that what was built matches the issued design before signingnot Jonas Premier
  • An operations team running annual thermographic inspection across a portfolio, wanting defects mapped to module positions so a technician goes straight to the faultnot Jonas Premier
  • A developer comparing defect and underperformance rates across contractors and module suppliers to inform the next procurement roundnot Jonas Premier

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Jonas Premier

  • Priced per concurrent user license at $249/user/month (or $199/user/month on a longer term) as captured 2 February 2023, with a starting annual price of $30,000 for the higher tier

Sitemark

  • It only does solar, so a mixed renewables portfolio still needs a second platform for wind, storage and substations, and the consolidation argument for buying it collapses.
  • Pricing is quoted on site count and unpublished variables, which penalises owners of many small distributed assets relative to one operator of a single large plant with the same total capacity.
  • You still need someone to fly the site, and Sitemark does not remove the drone operator cost, permits or airspace constraints; it monetises the data after the flight.
  • Automated progress counting depends on a clean, current design layout, and on projects where the layout changes weekly the comparison generates false deviations that erode trust in the numbers.
  • Thermographic defect detection needs the plant producing at sufficient irradiance, so inspection windows in northern latitudes are narrow and a missed window pushes findings into the next season.

Pricing, plan by plan

Jonas Premier

$500/month
  • Core$500/month
    • Project management
    • Accounting
    • Job costing
  • EnterpriseFree
    • Equipment management
    • Payroll integration
    • Advanced reporting

Sitemark

On request
  • Sitemark Construction$undefined/year
    • Priced on number of sites and other variables
    • Progress tracking across construction activities
    • As-built versus design quality control
  • Sitemark Operations$undefined/year
    • Thermographic inspection and defect detection
    • Ticketing and work management
    • Portfolio dashboards

Which should you pick?

Choose Jonas Premier if

  • You need project management.
  • You work on Web, Windows.
  • You also want accounting.
Jonas Premier review

Choose Sitemark if

  • You need construction progress tracking.
  • You work on Web, iOS, Android.
  • You also want as-built versus design comparison.
Sitemark review

Questions people ask

Is Jonas Premier or Sitemark better?
Neither clearly leads. Jonas Premier starts at $500/month and Sitemark at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Jonas Premier or Sitemark?
Jonas Premier starts at $500/month and Sitemark at On request.
Does Jonas Premier or Sitemark run on more platforms?
Jonas Premier runs on Web, Windows. Sitemark runs on Web, iOS, Android.
What is Jonas Premier best used for?
Jonas Premier is most often used for financial management, job costing, equipment tracking, payroll. Of those, financial management and job costing are not what Sitemark is typically brought in for.
What can Jonas Premier do that Sitemark cannot?
Jonas Premier covers Project management, Accounting, Job costing, Estimating. Sitemark covers Construction progress tracking, As-built versus design comparison, Thermographic inspection, Defect localisation.

Answered from the vendors’ own pages

Sitemark: Is Sitemark priced per megawatt?

No. Sitemark states pricing is based on number of sites and other variables. Ask explicitly how a portfolio of small sites is treated, because per-site pricing is unkind to distributed assets.

Sitemark: Do we have to use Sitemark drone pilots?

No. It accepts data from third-party drone operators, which lets you keep an existing flight contractor.

Sitemark: Does it cover anything other than solar?

No. It is built specifically around solar plant structures and defect types.

Sitemark: Can we export our data?

Yes, orthomosaics, defect lists and reports export. Confirm the format and whether historical inspections remain accessible after a subscription lapses.

Sitemark: Where is the company based?

Leuven, Belgium, with customers across Europe, the Middle East, Asia and the Americas.

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