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A Unified Platform for Non-Profit Digital Initiatives
Online Giving, Donor Management, Automation and Content Management in a single Cloud Solution.
33%
Mission Agencies* that Use SS
$170million
Donated through our tool in 2019
35%
Minimum Increase in Online Giving*

Online Giving

Site Stacker gives you the tools to intelligently take control of your online fundraising efforts. Our unique approach to web engagement, combined with our beautiful shopping cart experience and our knowledge of what speaks to donors will help you increase online giving on all devices.


How We Do It

Increase Conversion

Client's using Site Stacker see donor conversion rates soar and shopping cart attrition plummet.
Find Out Why

One-Click Checkout

Helping donors find your giving opportunities and complete their gift pain-free is essential.
How We Do It

Robust Donor Dashboards

Donors can view giving history, update payment methods, manage recurring gifts and reproduce receipts for themselves.
Find Out More

Donor Management

Powerful CRM Designed for Non-Profits

Site Stacker provides you with powerful, customizable dashboards and reports that allow you to manage online giving, recurring gifts, historic giving, and year-end statements, plus tools that will empower members and donors alike. 
See It In Action

Business Process Automation

The largest faith-based nonprofits in the world use Site Stacker for mobilization and member onboarding.
Find Out More

Beautiful User Interface

Mobile Responsive • Analytical Metrics • Drag and Drop Workflow Tools • Customizable Data Grids

Custom Workflows

Events • Mobilization • Recruitment • Applicant Management • Volunteer Management • Worker Management • Onboarding • Team Mission Trips

Security Focused

Encrypted Source and Highly Secure • Secure Files, Notes, and CRM Data • Customizable Permissioning

Content Management Par Excellence


WMTEK specializes in crafting beautiful digital experiences with Site Stacker. 

Powerful Content Management Tools • Mobile Ready Multi-Device Design

High-Outcome Nurture Pathways • CRM-Integrated Conversion Forms

Integrated Giving and Recruiting System • Enterprise Level Security

Multiple Sites & Site Channels • Multi-Lingual Publishing

Get a Tour of Site Stacker

Integrations with all the powerful tools you need, plus the Site Stacker REST API.

Schedule a Demo Today

WMTEK Inc
3690 North US 1
Fort Pierce, FL 34946
772-567-9824
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*Most ministries who use Site Stacker online giving tools have documented year over year gains of more than 35% in online giving. Many have experienced much greater gains. The amount of donations estimated to be processed on Site Stacker in 2019 is strictly a projected estimation. The percentage of mission agencies using Site Stacker is based on all agencies with annual revenues of $20m or greater.