Real-time
Two-way sync
Changes in Apollo.io or DealCloud instantly reflect in both systems. No stale data, no manual imports.
CRM
Apollo.io to DealCloud integration — real-time, two-way sync
Keep Apollo.io and DealCloud in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
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Adopted by fast-scaling companies moving mission-critical data in real time
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Why teams connect Apollo.io and DealCloud
Run Apollo.io and DealCloud side by side with the same accounts and contacts in both, whether they serve different teams or one is replacing the other.
Two CRMs in one company is more common than anyone plans for: an acquisition brings its own system, regions or business units standardize differently, or a migration is under way and both are live. In every case, some of the same companies and people exist in both systems, and every day of manual double entry pushes the copies further apart.
Stacksync syncs Deals (Opportunities), Tasks and calls, Custom fields, Contacts in Apollo.io with Investment, Relationship, Activity, Task in DealCloud in real time and in both directions, with field-level mapping and matching on identifiers you choose. Update a record in either CRM and the other reflects it within seconds.
Common use cases
- 01 Deduplicate contacts across Apollo and the CRM by syncing on email as the match key.
- 02 Push CRM opportunity stages back into Apollo so reps see pipeline context while sequencing.
- 03 Mirror DealCloud activities and tasks into an operational database to power internal dashboards without hitting the API on every read.
- 04 Push portfolio and fund performance data from a warehouse into DealCloud so dealmakers see up-to-date metrics on each investment.
Common sync patterns
Divisional or regional split
Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.
Where both track pipeline: deal visibility across systems
Deal stage and value on shared accounts stay visible from either CRM.
Post-acquisition consolidation
Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
What you can sync between Apollo.io and DealCloud
Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.
| Apollo.io objects | DealCloud objects | How this pairing syncs | |
|---|---|---|---|
| Contacts People saved to your Apollo account, synced with emails, phone numbers, and enrichment fields. | Contact Synced with incremental and full sync. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Deals (Opportunities) Pipeline records that can be read and written to keep Apollo aligned with the CRM of record. | Activity Synced with incremental and full sync. | Deals (Opportunities) is specific to Apollo.io and Activity to DealCloud — each maps to any object or custom field on the other side. | |
| Tasks and calls Rep activity records synced for activity reporting and coaching workflows. | Task Synced with incremental and full sync. | Tasks and calls is specific to Apollo.io and Task to DealCloud — each maps to any object or custom field on the other side. | |
| Custom fields Account- and contact-level custom attributes mapped field-by-field in a sync. | User Synced with incremental and full sync. | Custom fields is specific to Apollo.io and User to DealCloud — each maps to any object or custom field on the other side. | |
| Accounts Company records with firmographic attributes, matched to CRM accounts during sync. | Deal Synced with incremental and full sync. | Accounts is specific to Apollo.io and Deal to DealCloud — each maps to any object or custom field on the other side. | |
| People (database records) Prospects from Apollo's global database, pulled into downstream systems once enriched or saved. | Company Synced with incremental and full sync. | People (database records) is specific to Apollo.io and Company to DealCloud — each maps to any object or custom field on the other side. |
How changes propagate between Apollo.io and DealCloud
Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.
Apollo.io DealCloud Interval-based propagation
DetectionStacksync polls Apollo.io for changes on an incremental schedule, reading only records changed since the previous pass. Polling on updated-at timestamps.
DeliveryEach detected change is written to DealCloud through its API, with automatic retries and rate-limit backoff.
DealCloud Apollo.io Interval-based propagation
DetectionStacksync polls DealCloud for changes on an incremental schedule, reading only records changed since the previous pass. Incremental via each entry's last-modified timestamp.
DeliveryEach detected change is written to Apollo.io through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Apollo.io: Rate limits and enrichment credits vary by plan; bulk endpoints are throttled separately from single-record calls.
- DealCloud: API request limits apply per firm tenant; Stacksync manages throttling and retries automatically.
What ships with Apollo.io ⇄ DealCloud
Connect Apollo.io and DealCloud for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–DealCloud connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Apollo.io or DealCloud data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
At scale
Event queues
Handle millions of events per minute without losing a single Apollo.io or DealCloud record.
Observability
Monitoring
Track your Apollo.io ⇄ DealCloud sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Apollo.io and DealCloud.
How the Apollo.io and DealCloud connectors work
Apollo.io
- Integration surface
- REST API
- Authentication
- API key (passed in request headers); master keys unlock account-wide endpoints
- Change detection
- Polling on updated-at timestamps; webhook callbacks exist only for delivering asynchronous enrichment results, not as a general change-event stream
- Capabilities
- read · write
- Rate limits
- Rate limits and enrichment credits vary by plan; bulk endpoints are throttled separately from single-record calls
DealCloud
- Integration surface
- REST API (DealCloud Data API v2)
- Authentication
- OAuth 2.0 client-credentials; a DealCloud administrator generates a client ID and secret in the DealCloud admin API settings and grants Stacksync the required scopes
- Change detection
- Incremental via each entry's last-modified timestamp; DealCloud has no universal native change-data-capture, so Stacksync polls modified rows on an interval
- Capabilities
- read · write
- Rate limits
- API request limits apply per firm tenant; Stacksync manages throttling and retries automatically.
How it works
How to connect Apollo.io to DealCloud — three steps, no code
Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.
- 01
Connect your apps
Authenticate Apollo.io and DealCloud with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Apollo.io
connected
DealCloud
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Apollo.io and DealCloud objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
objects · Apollo.io ⇄ DealCloudCustomers 12,480Sales Orders 8,213Invoices 5,902Items 1,344 - 03
Map fields
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Apollo.io DealCloudCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Apollo.io and DealCloud integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Apollo.io and DealCloud: authenticate both systems, choose the objects to sync (such as Apollo.io's Contacts and Deals (Opportunities)), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.
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Common patterns for Apollo.io and DealCloud: Divisional or regional split; Where both track pipeline: deal visibility across systems; Post-acquisition consolidation. Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.
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Apollo.io: REST API. Authentication: API key (passed in request headers); master keys unlock account-wide endpoints. DealCloud: REST API (DealCloud Data API v2). Authentication: OAuth 2.0 client-credentials; a DealCloud administrator generates a client ID and secret in the DealCloud admin API settings and grants Stacksync the required scopes. Stacksync manages authentication, retries, and rate limits on both sides.
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Apollo.io: Apollo distinguishes between people in its global database and contacts saved to your account; only saved contacts carry your custom fields and sequence history. DealCloud: The DealCloud API authenticates with OAuth 2.0 client-credentials; API access and scopes are provisioned by a DealCloud administrator. Stacksync's field mapping accounts for these differences between Apollo.io and DealCloud without custom code.
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Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Apollo.io and DealCloud records are not retained after a sync operation.
SECURITY
Security teams trust Stacksync
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.
SOC 2 Type II
ISO 27001
HIPAA BAA
GDPR
CCPA
CSA STAR
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS
SSO & SCIM
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Alerts
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Secure connection options
Securely connects to your systems with:
Related integrations
Every pair below is a real-time, two-way sync. Search all 392 integrations available for Apollo.io and DealCloud.
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Apollo.io ⇄ Oracle CX Sales -
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DealCloud ⇄ Vtiger CRM -
DealCloud ⇄ Zoho SalesIQ -
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DealCloud ⇄ Vitally
No integrations match .
