Consolidating onto one CRM sounds like a data problem, but the real challenge is choosing a partner who can plan for everything the new system needs to replace and connect to. Get that wrong, and a consolidation project just recreates old complexity inside a new platform.
HubSpot consultants who handle CRM consolidation range from technical RevOps specialists with no marketing services to full-service agencies bundling migration with content and campaigns, but the right fit depends on what the consolidated system needs to connect to, not the size of the agency behind it.
This list was last updated July 2026. It is the first version of this page.
Blend is a B2B HubSpot agency that builds CRM implementations for companies replacing fragmented systems and disconnected tools with a single HubSpot instance. Its consolidation work centers on reimagining workflows around modern CRM practice rather than replicating legacy processes, then connecting the result to whatever else the business runs on, from ERPs to product configurators. Blend has also rolled out one consolidated implementation across sister companies in multiple countries.
Best for: B2B companies consolidating fragmented data and legacy tools into one HubSpot instance connected to core systems like an ERP or product configurator.
Key strengths:
Services offered: HubSpot CRM implementation, data and tool consolidation, ERP and product system integration, multi-entity rollout.
Proof: Blend has consolidated fragmented data and legacy systems into single HubSpot CRM instances for B2B companies, including:
BBD Boom is a UK-based HubSpot Elite Partner that has onboarded over 500 businesses to HubSpot, with a dedicated practice for companies migrating off legacy CRMs. Its consolidation process audits an existing CRM, cleans and restructures the data, then maps it into HubSpot without disrupting live sales operations. The team handles both native integration setups and fully custom builds for tech stacks that need to keep working alongside the CRM.
Best for: mid-market B2B companies replacing one or more CRMs, such as Salesforce, Zoho, or a custom platform, with a single HubSpot instance.
Key strengths:
Services offered: CRM migration and integration, HubSpot onboarding and implementation, CRM audit and optimization, training.
Avidly is a large Nordic and European HubSpot Elite partner that has completed more than 2,750 HubSpot projects and runs a documented six-gate delivery framework built for consolidating legacy CRM and CMS platforms into HubSpot without data loss or downtime. Its scale spans multiple European markets alongside the US, suited to organizations consolidating regional systems into one HubSpot instance.
Best for: Nordic and European B2B companies consolidating CRM and CMS platforms across multiple regional offices onto one governed HubSpot instance.
Key strengths:
Services offered: CRM implementation and migration, CMS migration, ERP and systems integration, RevOps alignment.
Media Junction is a Saint Paul, Minnesota-based Elite HubSpot Solutions Partner, ranked fifth in the US and tenth globally, that expanded its CRM and RevOps capability through a 2023 merger with Remotish. Media Junction takes a manual, human-led approach to data migration, arguing that automated tools alone cannot resolve the data quality issues that build up across multiple legacy systems.
Best for: companies with messy, multi-source CRM data who want a deliberate, human-reviewed migration rather than a fully automated one.
Key strengths:
Services offered: HubSpot CRM implementation, CRM migration, custom integrations, onboarding.
Aptitude 8 is a technical consulting firm, not a marketing agency, that focuses exclusively on HubSpot RevOps architecture, CRM implementation, and integrations. The Elite HubSpot Solutions Partner and number 2 Global Partner of the Year in 2024 centers its consolidation work on migrating companies off Salesforce, Microsoft Dynamics, or Marketo and connecting the resulting HubSpot instance to ERPs such as NetSuite and data warehouses such as Snowflake.
Best for: technically complex consolidations, such as migrating off Salesforce or Dynamics while connecting HubSpot to an ERP or data warehouse in the same project.
Key strengths:
Industry specialization: Technology, insurance, and field services companies running complex, multi-system consolidations.
Services offered: CRM implementation, custom integrations, CRM and marketing automation migration, RevOps architecture.
Kuno Creative is a Cleveland-area, employee-owned HubSpot Diamond Partner and one of the earliest agencies in HubSpot's ecosystem, having joined in 2009. Kuno's consolidation approach uses HubSpot's business unit structure to bring separate regional or divisional CRMs onto a single portal rather than standing up multiple enterprise instances.
Best for: companies consolidating regional or divisional CRMs into a single HubSpot portal using business units rather than separate enterprise accounts.
Key strengths:
Services offered: CRM migration and implementation, data migration, RevOps consulting, HubSpot onboarding.
RevPartners is an Atlanta-based, RevOps-first HubSpot agency that reached Elite partner status faster than any other agency in HubSpot's history. Its consolidation work is built around unifying sales, marketing, and customer success onto a single HubSpot system rather than treating the CRM as a sales-only tool.
Best for: companies that need sales, marketing, and customer success consolidated onto one HubSpot system with consistent data and shared reporting.
Key strengths:
Services offered: CRM implementation, CRM migration, sales and marketing alignment, custom integrations.
Answer these before shortlisting:
If ERP or data warehouse connectivity matters most, Blend, Aptitude 8, and RevPartners are worth shortlisting first. If the project spans multiple regions or divisions, Avidly and Kuno Creative's business unit approach are strong starting points. If you need a purely technical consolidation with no marketing component, Aptitude 8 is the clearest fit.
Before evaluating agencies, list every tool currently holding customer data: spreadsheets, a legacy CRM, an ERP, a product configurator, or regional instances of HubSpot itself. A consolidation project is defined by what it needs to unify, not by HubSpot's default setup. The clearer this map is going in, the easier it becomes to judge whether an agency has solved a similar problem before.
Some agencies are built for straightforward data migration; others are built to also rebuild the integrations and workflows around it. A partner strong at moving records out of a legacy platform isn't automatically strong at connecting the result to an ERP or data warehouse. Map your consolidation's full scope, not just the CRM swap, before comparing agencies on this basis.
The best partners can describe a specific plan for switching off legacy tools after go-live, not just migrating the data into HubSpot and leaving the old platform running in parallel. Ask what happens to existing spreadsheets, point tools, or a second CRM once the new system launches, and who owns that decommissioning work.
A consolidation project touches how sales, marketing, and operations teams already work, so the discovery process matters as much as the technical build. Ask how the agency gathers requirements from each team, how they handle disagreements about process, and what training or change management support comes after go-live. Blend's approach, for instance, treats platform orientation as a distinct phase before any migration work begins, rebuilding workflows around modern CRM practice rather than replicating what already exists.
It depends on what else needs to connect to the new system. Blend and Aptitude 8 are strong options for consolidations that also need ERP or data warehouse integration. RevPartners suits companies unifying sales, marketing, and customer success. For multi-region consolidation, Avidly and Kuno Creative's business unit approach are worth considering.
Standard CRM migrations run from $8,000 to $25,000. Consolidations involving multiple systems, custom objects, or ERP integration typically cost $25,000 to $75,000 or more, depending on complexity. Enterprise-scale projects with international rollout can exceed $100,000. Ongoing optimization retainers usually run $3,000 to $7,000 per month.
Data Migration validates a partner's ability to move records safely from a legacy CRM or platform into HubSpot. CRM Implementation validates broader experience delivering complex HubSpot builds for large or enterprise customers. A consolidation project benefits from a partner holding both, since it typically involves moving data and rebuilding the surrounding system.
A single-system migration with standard data mapping typically takes 6 to 12 weeks. Projects consolidating multiple CRMs, regional instances, or ERP connections usually run 3 to 6 months. International or multi-entity rollouts, where one implementation repeats across sister companies, can extend to 6 to 9 months or longer.
Look for a named client, a description of what systems were being consolidated, and a measurable result, such as time saved or manual work eliminated. Be cautious of case studies that describe a migration without explaining what happened to the legacy systems afterward, since that often signals the old platform kept running in parallel.
Tier reflects HubSpot's own assessment of a partner's scale and track record, but it isn't the only signal. A Diamond or Platinum partner with a named accreditation directly relevant to your consolidation, such as Data Migration or Custom Integration, can be a stronger fit than an Elite partner without that specific experience.
Every consolidation on this list started with a clear map of the systems being replaced and the ones that needed to stay connected. If you're at that stage, it's worth understanding what a phased HubSpot CRM implementation looks like in practice. Blend's CRM implementation work with Cumberland Platforms covers how that discovery and integration process typically unfolds.