Updated September 2026 · Written and maintained by the Progression Agency strategy team
Progression Agency provides custom CRM development: CRM software built around your sales, service and account-management process, or custom layers on Salesforce and HubSpot, with integrations to your website, phone system, billing and marketing tools.
On this page · 11 sections
- What is custom CRM development?
- CRM software we build
- Key features and components
- Common integrations
- Data protection
- Our custom CRM development process
- How much does custom CRM development cost?
- Technology we typically use
- Mistakes to avoid
- Why choose Progression Agency for custom CRM development?
- Related services
The short answerCustom CRM development is building customer relationship management software shaped to your pipeline, data and workflows — either a standalone CRM or custom objects, automations and apps on an existing CRM platform. A custom CRM commonly costs $50,000-$200,000; extending Salesforce or HubSpot commonly costs $20,000-$100,000.
Cost ranges are US planning figures, not quotes.
What is custom CRM development?
Custom CRM development is designing and building customer relationship management software, or custom extensions to a CRM platform, around an organization’s own sales and service process.
We recommend extending Salesforce or HubSpot when their core fits and building standalone when licensing cost, data model or workflow make the platform a poor fit. We also connect the CRM to lead generation sources so attribution is complete.
CRM software we build
Projects we are most often asked to build.
Standalone custom CRMs
Built on your data model with the fields, stages and permissions you need and no per-seat licence.
Salesforce customization
Custom objects, Lightning components, flows and integrations.
HubSpot custom development
Custom objects, workflows, CRM cards and integrations.
Industry CRMs
CRMs for real estate, healthcare referrals, recruiting and other specialized pipelines.
Mobile CRM apps
Field sales apps with offline notes and visit logging.
CRM integrations
Website forms, call tracking, billing and marketing automation.
Built on your data model with the fields, stages and permissions you need and no per-seat licence.
Key features and components
What separates a useful build from a costly one.
| Feature | Why it matters |
|---|---|
| Custom pipelines and stages | Match how you sell |
| Activity capture | Emails, calls, meetings logged |
| Lead routing | Right rep, fast |
| Automations | Follow-ups and tasks |
| Permissions | Role-based data access |
| Forecasting | Pipeline visibility |
| Mobile access | Reps in the field |
| Reporting | Revenue and conversion |
Common integrations
Where the value usually comes from.
| System | What we connect |
|---|---|
| Website and forms | Leads straight into the CRM |
| Email and calendar | Activity capture |
| Phone and call tracking | Call logging and attribution |
| Billing | Invoices and subscriptions |
| Marketing automation | Campaigns and scoring |
| Data warehouse | Reporting |
Data protection
CRMs hold personal and commercial data.
- Role-based access and audit logs.
- Privacy compliance for contact data.
- Secure integrations with least-privilege keys.
- Data retention and deletion controls.
Our custom CRM development process
We map your pipeline and data with the people who use it, decide build versus extend, design the data model and screens for rep speed, build in sprints, migrate and clean historical data, and support adoption with training and dashboards.
How much does custom CRM development cost?
As a planning range, extending Salesforce or HubSpot commonly costs $20,000-$100,000; a standalone custom CRM $50,000-$200,000; an industry CRM platform sold to others $150,000+.
| Scope | Typical range | Timeline |
|---|---|---|
| CRM platform customization | $20,000-$100,000 | 1-4 months |
| Standalone custom CRM | $50,000-$200,000 | 3-7 months |
| Mobile CRM app | $40,000-$100,000 | 2-4 months |
Technology we typically use
Mainstream, maintainable choices.
| Layer | Choice |
|---|---|
| Front end | React / Next.js |
| Mobile | React Native |
| Backend | Node.js or Python |
| Data | PostgreSQL |
| Platforms | Salesforce, HubSpot APIs |
| Integrations | Webhooks, iPaaS where useful |
Mistakes to avoid
Common causes of overruns and low adoption.
- Replicating a spreadsheet instead of redesigning the process.
- Too many required fields.
- Migrating dirty data.
- No lead-source attribution.
- Ignoring mobile reps.
- No reporting until the end.
Why choose Progression Agency for custom CRM development?
Engineering, design and go-to-market in one team.
- Build-versus-extend advice in writing.
- Marketing attribution expertise.
- Salesforce and HubSpot integration experience.
- You own the code, data and accounts.
- Headquartered in New York City, working with clients nationwide and worldwide.
Related services
See custom software development, web portal development and dashboard development.
Ready to scope it?
Tell us the users, workflow and systems involved. We will propose a first release and planning estimate.
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Frequently asked questions
What is custom CRM development?
How much does a custom CRM cost?
How long does custom CRM development take?
Should we build a custom CRM or use Salesforce?
Can you customize HubSpot?
Can you customize Salesforce?
Can you migrate our data?
Can the CRM capture website leads?
Can reps use it on mobile?
Can you build an industry-specific CRM?
What features should a CRM have?
Do you integrate call tracking?
What tech stack do you use?
How much maintenance is required?
What should I look for in a CRM development company?
Can you build a CRM we sell to others?
Can AI help our CRM?
How do you drive adoption?
Who owns the CRM?
Where is Progression Agency located?
Need software built?We build CRMs around your sales process, or custom layers on Salesforce and HubSpot, integrated with your site and phones.
Get a free marketing proposal
Tell us what you are trying to grow and we will come back with a plan, not a pitch deck. Same-day reply on weekdays.