Skip to main content

ECI MarkSystems

ECI MarkSystems at a glance
VendorECI Software Solutions
HeadquartersWestlake, Texas, USA
OwnershipPrivate equity: Leonard Green & Partners (majority), Apax funds (minority)
DeploymentCloud (SaaS)
Target marketUS production and semi-custom homebuilders
IndustriesResidential construction / homebuilding
PricingNot published; quote-based
Websiteecisolutions.com/products/marksystems

What ECI MarkSystems is

MarkSystems is a single-database ERP for residential homebuilders. Sales and design selections, estimating, purchasing, scheduling, job cost accounting, and warranty all run inside one cloud platform, which covers the full cycle of a production or semi-custom building operation. In the US homebuilding software market it counts as one of the established ERP options for builders delivering multiple homes a year across communities.

The company behind it

The product started life as the Integrated Homebuilder Management System (IHMS) at Mark Systems, a software company in Mount Holly, New Jersey, that served residential builders for decades. ECi Software Solutions acquired Mark Systems in March 2017 and built its residential construction group around it; the rebrand to ECI MarkSystems followed. The parent company sits in Westlake, Texas, and has been majority-owned by private equity firm Leonard Green & Partners since 2020. Lasso CRM and LotVue belong to the same residential construction portfolio.

Modules and capabilities

Estimating works from cost databases. Purchasing is automated, with purchase orders distributed to trades, and construction scheduling coordinates those trades through a builder portal. Job cost accounting is native, so budgets and actuals meet in real time per job and per community. On the sales side, design center and option management push buyer selections straight into budgets and purchase orders, while warranty management picks up post-closing service work. Custom dashboards, reporting, and an open API round out the platform, with documented integrations to Lasso CRM, LotVue, and AvidCX.

Best-fit companies

Production and semi-custom homebuilders in the United States, typically running multiple homes a year across one or more communities. That is the entire target. Commercial general contractors, remodelers, and one-off custom builders belong to other construction software categories.

How it is sold

Cloud delivery operated by ECI, with pricing quoted individually and nothing published. Budget the usual vertical-ERP implementation on top of the subscription. Cost codes, vendor records, and open jobs have to come across from the prior system, and building out option catalogs and trade partner data is substantive project work rather than configuration trivia.

Our take

The scoping here is unusually disciplined, and that is the product's strength. A production or semi-custom builder who has outgrown accounting software plus a stack of spreadsheets gets the argument in one sentence: selections, purchasing, scheduling, and job costs stop living in separate places. Buy it for that reason or not at all. What you give up is breadth, since payroll, land development finance, and anything commercial may still need companion tools, so a builder hunting for one system that covers everything will end up disappointed. Anyone outside residential production building should skip this profile entirely. Within the segment the realistic shortlist includes NEWSTAR from Constellation HomeBuilder Systems alongside broader construction platforms, and comparing them against the criteria in our ERP selection guide is worth the effort before signing anything.

What the ECI MarkSystems website looks like

Current view of the vendor homepage, captured by our editorial team.

Screenshot of the ECI MarkSystems vendor homepage

Comparable products

Related Topics

User reviews for ECI MarkSystems

No published reviews for ECI MarkSystems on usa.erp-software.org yet.

Write the first review →

Share your experience with ECI MarkSystems

Reviews are checked editorially for plausibility before publication (usually 1–3 business days). Your email address is never published and is stored only as a hash. Fields marked * are required.

Frequently asked questions

What types of builders is ECI MarkSystems designed for?

MarkSystems targets production and semi-custom residential homebuilders in the United States. The typical customer builds multiple homes per year across one or more communities and needs sales selections, purchasing, scheduling, and accounting working from the same data. Commercial general contractors and remodelers sit outside its intended scope and are better served by other construction software categories.

Is accounting included, or does it need a separate system?

Job cost accounting is native to the platform, not an external bolt-on. Budgets, purchase orders, and actual costs move through one database, which gives builders real-time budget-versus-actual visibility per job and per community. That link between construction operations and financials is why the product counts as a homebuilder ERP rather than a project management tool.

Who owns MarkSystems and where does the product come from?

The software was created by Mark Systems, a New Jersey company whose Integrated Homebuilder Management System served residential builders for decades. ECi Software Solutions acquired Mark Systems in March 2017 and rebranded the product as ECI MarkSystems. ECI is headquartered in Westlake, Texas, and has been majority-owned by the private equity firm Leonard Green and Partners since 2020.

What does ECI MarkSystems cost?

ECI does not publish pricing. The product is sold as a cloud subscription with individually prepared quotes. Implementation and training belong in the budget as well.

Does MarkSystems integrate with CRM and other sales tools?

The platform provides an open API plus documented integrations to Lasso CRM, LotVue for interactive lot maps, and AvidCX for customer experience feedback. Lasso and LotVue sit in the same ECI residential construction portfolio, which keeps those connections close to the core product and reduces the risk of an integration drifting out of sync after an update. Builders on a different CRM can connect through the API, though the effort depends heavily on the tool in question and should be scoped before the contract rather than after.

What does a MarkSystems implementation involve?

Expect a genuine vertical ERP project rather than a switch-on. Cost codes, vendor data, and open jobs migrate from the previous system, and option catalogs and trade partner records have to be set up before the platform earns its keep. That setup work is a substantial share of the total effort, which is why implementation and training deserve their own line in the budget next to the subscription.