Shortlist · 2026
Best HubSpot integration partners
By Pratik Thakker, Founder & CEO, INSIDEA. Most HubSpot projects that go wrong go wrong at the edges, where HubSpot meets the ERP, the billing system, the product database or Salesforce. An integration partner has to design the data model first and the sync second. This list takes the seven Elite partners that hold HubSpot's Custom Integration Accreditation and that come up most when buyers ask about complex builds, and compares them on what you can check on the HubSpot Solutions Partner Directory. INSIDEA is on it, and each fit line says where another partner is the better choice. For how INSIDEA connects specific tools, see HubSpot integrations.
The best HubSpot integration partners are INSIDEA, SmartBug Media, Huble, Aptitude 8, New Breed, RevPartners and Avidly. All seven are Elite partners and held HubSpot's Custom Integration Accreditation on the HubSpot Solutions Partner Directory on 17 October 2026. INSIDEA and RevPartners are the two whose listings state that they take any budget; the other five state budgets from $5,000. INSIDEA is an Elite HubSpot Partner rated 4.99 across 500+ verified reviews holding HubSpot's Custom Integration and CRM Data Migration Accreditations; it sets up 22 native apps and features as part of onboarding and scopes custom integrations separately, with the scope in writing before work starts. SmartBug Media fits a North American company that wants a large RevOps and integration bench, Huble a quote-to-cash setup across several countries, Aptitude 8 a HubSpot plus Salesforce or heavily custom architecture, New Breed a B2B SaaS company with a RevOps-led program, RevPartners a US company that also runs Clay for data and pipeline, and Avidly a multi-country European rollout.
Four checks for a HubSpot integration partner
HubSpot grants Accreditations; a partner cannot declare one. Custom Integration is the one that says HubSpot has reviewed the partner's integration work. All seven partners here showed it on their directory listings on 17 October 2026.
Many integrations need no code: a marketplace connector, configured properly, carries the process. Ask which of your tools the partner sets up as part of onboarding. INSIDEA sets up 22 native apps and features during onboarding and scopes anything beyond them separately.
Every listing has a "Budgets we work with" field. On 17 October 2026, INSIDEA and RevPartners stated any budget; SmartBug Media, Huble, Aptitude 8, New Breed and Avidly stated $5,000 and up.
Integrations break when an API version changes or a field is renamed. Ask who monitors the sync, how failures are alerted, and whether the runbook is written down and handed over.
The shortlist at a glance
| # | Partner | Region | Best for |
|---|---|---|---|
| 1 | INSIDEA | United States (INSIDEA, Inc., Dover, Delaware); teams across the US, EMEA and APAC | Companies that want native connectors configured as part of onboarding, Salesforce, Stripe or Zapier connected with the scope in writing, and one accredited partner for onboarding, migration and integration. |
| 2 | SmartBug Media | United States (remote) | North American companies that want a large RevOps and integration bench, with a budget above $5,000. |
| 3 | Huble | London, Chicago and seven other offices | Companies connecting quotes, billing and the CRM across several countries, with a budget above $5,000. |
| 4 | Aptitude 8 | United States (Wilmington, Delaware) | Companies running HubSpot alongside Salesforce, or with a heavily custom architecture that needs senior technical hands, and a budget above $5,000. |
| 5 | New Breed | United States (Burlington, Vermont) | B2B SaaS companies with a RevOps-led program that need product and billing data on the CRM record, with a budget above $5,000. |
| 6 | RevPartners | United States (Chicago, Boston, Seattle, San Francisco, Norcross) | US companies that want RevOps process design and also run Clay for data enrichment and pipeline generation. |
| 7 | Avidly | Offices across Europe, North America and Australia and New Zealand | European mid-market and enterprise companies rolling HubSpot out across several countries, with a budget above $5,000. |
The partners, in detail
INSIDEA
Elite · United States (INSIDEA, Inc., Dover, Delaware); teams across the US, EMEA and APACElite HubSpot Partner rated 4.99 across 500+ verified reviews, holding HubSpot's Custom Integration, CRM Data Migration, CRM Implementation, Onboarding and Platform Enablement Accreditations. 22 native apps and features are set up as part of onboarding; custom integrations and CRM migrations are scoped separately, not priced off a menu. Published integration guides cover Salesforce, Stripe, Zapier, Slack, Zoom, Google Ads and Calendly.
Best for: Companies that want native connectors configured as part of onboarding, Salesforce, Stripe or Zapier connected with the scope in writing, and one accredited partner for onboarding, migration and integration.
On the HubSpot directory, 17 October 2026: Elite tier, Custom Integration Accreditation, any budget (listing read 17 October 2026).
How INSIDEA works →SmartBug Media
Elite · United States (remote)Its listing is headed RevOps, CRM and integration and shows the Custom Integration Accreditation. North America is its listed region.
Best for: North American companies that want a large RevOps and integration bench, with a budget above $5,000.
On the HubSpot directory, 17 October 2026: Elite tier, 5.0 across 824 reviews, Custom Integration Accreditation, budgets from $5,000 (listing read 17 October 2026).
INSIDEA vs SmartBug Media →Huble
Elite · London, Chicago and seven other officesA global HubSpot consultancy. Its listing shows the Custom Integration Accreditation and HubSpot's Quote-to-Cash capability badge.
Best for: Companies connecting quotes, billing and the CRM across several countries, with a budget above $5,000.
On the HubSpot directory, 17 October 2026: Elite tier, 4.9 across 328 reviews, Custom Integration Accreditation, budgets from $5,000 (listing read 17 October 2026).
INSIDEA vs Huble →Aptitude 8
Elite · United States (Wilmington, Delaware)Its listing is headed technical architecture and deployment and shows the Custom Integration and Service Implementation Accreditations.
Best for: Companies running HubSpot alongside Salesforce, or with a heavily custom architecture that needs senior technical hands, and a budget above $5,000.
On the HubSpot directory, 17 October 2026: Elite tier, 5.0 across 259 reviews, Custom Integration Accreditation, budgets from $5,000 (listing read 17 October 2026).
INSIDEA vs Aptitude 8 →New Breed
Elite · United States (Burlington, Vermont)B2B SaaS specialist with a dedicated RevOps practice. Its listing shows the Custom Integration Accreditation and four regions served.
Best for: B2B SaaS companies with a RevOps-led program that need product and billing data on the CRM record, with a budget above $5,000.
On the HubSpot directory, 17 October 2026: Elite tier, 5.0 across 585 reviews, Custom Integration Accreditation, budgets from $5,000 (listing read 17 October 2026).
INSIDEA vs New Breed →RevPartners
Elite · United States (Chicago, Boston, Seattle, San Francisco, Norcross)A RevOps-led HubSpot partner. Its listing shows the Custom Integration and Service Implementation Accreditations, a SOC 2 Type 1 credential, and says it is an Elite partner with both HubSpot and Clay.
Best for: US companies that want RevOps process design and also run Clay for data enrichment and pipeline generation.
On the HubSpot directory, 17 October 2026: Elite tier, 5.0 across 531 reviews, Custom Integration Accreditation, any budget (listing read 17 October 2026).
INSIDEA vs RevPartners →Avidly
Elite · Offices across Europe, North America and Australia and New ZealandA large European-headquartered HubSpot partner. Its listing shows the Custom Integration and Data Migration Accreditations and ten office locations.
Best for: European mid-market and enterprise companies rolling HubSpot out across several countries, with a budget above $5,000.
On the HubSpot directory, 17 October 2026: Elite tier, 5.0 across 495 reviews, Custom Integration Accreditation, budgets from $5,000 (listing read 17 October 2026).
INSIDEA vs Avidly →When the right partner is not on this list
Three cases where this shortlist is the wrong starting point.
If the tool has a native HubSpot connector and your process fits it, you may need configuration, not a build. Start with the connector, and bring in a partner only for field mapping, sync rules and dedupe.
A migration is a project of its own before any ongoing sync. Start from the migration shortlists, for example /migration/salesforce-to-hubspot-agencies.
If the integration is one part of a wider implementation, start from the best HubSpot implementation partners for mid-market B2B, at /compare/best-hubspot-implementation-partners-mid-market.
Common questions
Who are the best HubSpot integration partners?
Seven Elite partners hold HubSpot's Custom Integration Accreditation and come up most when buyers ask about complex HubSpot builds: INSIDEA, SmartBug Media, Huble, Aptitude 8, New Breed, RevPartners and Avidly. INSIDEA is an Elite HubSpot Partner rated 4.99 across 500+ verified reviews that configures native apps as part of onboarding and scopes custom integrations in writing before work starts. Which one is best depends on your stack, your regions and your budget, and each entry says who it fits.
What is the HubSpot Custom Integration Accreditation?
A partner-level credential HubSpot grants after reviewing a partner's integration work. A partner cannot award it to itself. It shows under HubSpot accreditations on the partner's directory listing, so you can check it in seconds.
How much does a custom HubSpot integration cost?
It is scoped, not priced off a menu: data volume, the number of systems, custom objects, historical records and how fresh the data has to be all change the work. INSIDEA configures native marketplace apps as part of onboarding and scopes custom integrations separately, with the scope in writing before work starts. On 17 October 2026, five of the seven listings here stated budgets from $5,000; INSIDEA and RevPartners stated any budget.
INSIDEA published this. Is it biased?
We have a stake and have said so. INSIDEA is listed first because this is INSIDEA's page. Every other partner is described only with facts from its directory listing and INSIDEA's vetted comparison profiles, read on the date shown, and the fit lines name the cases where another partner is the better choice.
Your stack, connected to HubSpot, scoped before it starts.
Thirty minutes on the systems you need connected and what has to sync first. A written scope within 48 hours if we are a fit, or the name of the partner who is.
How INSIDEA works
