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SendGrid As of September 2026, Stacksync is backed by Y Combinator (Winter 2024 batch) and headquartered in Bussigny, Switzerland. It builds real-time two-way sync, workflow automation, event queues and AI agents that keep CRMs, ERPs and databases in step.
This page lists the company facts Stacksync publishes. For round sizes, investor names or financials in a vendor-risk review, ask your Stacksync contact.
AT A GLANCE
| Topic | Answer | Where to check |
|---|---|---|
| Company | Stacksync (legal name Stacksync Inc.) | |
| Funding and backing | Y Combinator, Winter 2024 batch (as of September 2026). | YC company profile |
| Headquarters | Bussigny, Vaud, Switzerland. | Offices and contact |
| What it builds | Two-way sync, workflow automation, event queues, database hosting, AI agents and EDI for CRMs, ERPs and databases. | Two-way sync |
| Pricing | Priced on records in sync and active syncs, with published plans and a quote-only Enterprise plan. | Pricing |
| Support | Email support and the Slack community on every plan, a dedicated Slack channel from Pro up, and email, chat and phone support up to 24/7 from Managed Pro up. | Support by plan |
| Security | SOC 2 report, sub-processors, audit reports and policies. | Trust Center |
| Service status | Live service status and incident history. | status.stacksync.com |
| Headcount, round sizes, customer count | Not listed on this page. Ask your Stacksync contact. | Book a call |
THE PLATFORM
Stacksync connects the systems a company runs on: CRMs such as Salesforce and HubSpot, ERPs such as NetSuite and SAP, and databases such as Postgres. You map fields once and choose which side may write each one. Stacksync then keeps records in step through two-way sync, and the other modules build on that same data.
Real-time sync between CRMs, ERPs and databases, with write direction set per field.
Trigger actions on record changes, configured in the builder or as YAML/JSON files.
Process the events that move between your systems in order, with automatic retries.
Managed databases that sit next to your synced data.
Agents that read and write the same live data your syncs maintain.
Trading-partner EDI connected to the ERP and commerce systems you already run.
Buyers compare Stacksync with four groups of tools. iPaaS vendors such as Celigo, Workato, Boomi and MuleSoft build integrations as step-by-step flows. Heroku Connect syncs Salesforce with Heroku Postgres. ELT tools such as Fivetran copy data one way into a warehouse. EDI networks such as SPS Commerce and TrueCommerce exchange documents with trading partners. Stacksync covers the operational side: live two-way sync between business systems, with workflows and EDI on top.
For feature-by-feature detail, read the Stacksync vs competitors comparison and why teams switch from Heroku Connect, or the Workato, Celigo and Heroku Connect alternative pages.
SUPPORT AND SLAS
Every plan includes the documentation, the Slack community and email support at support@stacksync.com. From Pro up, your team gets a dedicated Slack channel, shared over Slack Connect. From Managed Pro up, plans add email, chat and phone support up to 24/7, and SLAs start at Managed Pro. Response-time SLAs sit in your service agreement, so ask for the draft while you evaluate.
If your company blocks external Slack, email support@stacksync.com or use live chat on this site. During an incident, Stacksync posts updates on status.stacksync.com. The security page covers data handling and the security controls on each plan.
| Support | Starter | Pro | Managed Pro | Enterprise |
|---|---|---|---|---|
| Documentation | Included | Included | Included | Included |
| Slack community | Included | Included | Included | Included |
| Email support (support@stacksync.com) | Included | Included | Included | Included |
| Dedicated Slack channel (Slack Connect) | Not included | Included | Included | Included |
| Email, chat and phone, up to 24/7 | Not included | Not included | Included | Included |
| Solutions architect | On Demand | On Demand | Dedicated integration lead | Dedicated during setup & monthly |
| SLAs in the service agreement | Not included | Not included | Included | Included |
Plan details match the pricing page compare table. Email support is on every plan, as the contact page lists.
CONTINUITY AND TRUST
If you are replacing integrations that have run for years, you want to know what stays in your hands if plans change. Check these four areas during your evaluation.
You can define workflows as YAML or JSON files on every plan. From Pro up, the Management API and Configuration as Code cover syncs and workflows, so you can keep their definitions as code in your own tooling. Enterprise adds infrastructure as code through GitHub.
Read the documentationStacksync syncs records between the CRM, ERP and databases you already run, and those systems stay your systems of record. On-premise deployment is an Enterprise plan option for teams that need the platform inside their own environment.
Compare plansThe Trust Center holds the SOC 2 report, sub-processors, audit reports and policies. Read the terms of service and privacy notice before legal review, and ask for the service agreement draft early.
Ask your Stacksync contact for a reference call with a customer on a stack like yours. Bring the questions your procurement or IT team would ask a peer: setup time, support during incidents, and how they set write direction.
Book a callFAQ
Short answers to the questions buyers ask before they sign.
As of September 2026, Stacksync is backed by Y Combinator and went through its Winter 2024 (W24) batch. This page does not list round sizes or other investors. If you need funding or financial details for a vendor-risk review, ask your Stacksync contact.
Stacksync is headquartered in Bussigny, in the canton of Vaud, Switzerland. The contact page lists the offices and every way to reach the team.
Every plan includes the documentation, the Slack community and email support at support@stacksync.com. A dedicated Slack channel, shared over Slack Connect, starts on the Pro plan. Email, chat and phone support up to 24/7 starts on Managed Pro. If your company blocks external Slack, use email or live chat on stacksync.com.
SLAs start on the Managed Pro plan, and your service agreement sets their terms. Stacksync publishes live service status and incident history at status.stacksync.com. Ask for the service agreement draft during your evaluation so your legal team can review it early.
Your records stay in your own CRM, ERP and databases, because Stacksync syncs between them. From Pro up, the Management API and Configuration as Code let you keep sync and workflow definitions as code, and on-premise deployment is an Enterprise plan option. Raise any further continuity terms with your Stacksync contact so they go into your service agreement.
Ask your Stacksync contact for a reference call with a customer on a stack like yours. If a peer conversation is part of your approval process, schedule it before the proof of concept starts.
The Trust Center at security.stacksync.com holds the SOC 2 report, sub-processors, audit reports and policies. The security and compliance pages on stacksync.com describe the controls and frameworks in more detail.
