Top Atlassian partners for complex Jira migrations (involving apps and scripts)

Atlassian has set a fixed end-of-life timeline for Data Center. New sales end March 30, 2026. License and app expansions end March 30, 2028. Full support ends March 28, 2029, after which instances move to read-only mode . For enterprise IT leaders, it means a big shift.

This guide evaluates six Atlassian Solution Partners for complex Jira migrations (with Marketplace apps, custom scripts, and large user bases). The focus is not on script refactoring, app consolidation, governance, and long-term total cost control.

Our scoring model applies five criteria:

Each partner is checked against each criterion strictly based on public evidence and Partner Directory data.

To keep this analysis neutral and transparent scoring model. Each partner is evaluated against criteria that reflect real migration challenges. This makes the evaluation transparent, repeatable, and defensible. The goal is simple: identify partners that can manage complexity at scale – not just complete a basic Cloud move.

To be included in this report, vendors must meet clearly defined qualification thresholds.

First, each candidate must hold active Atlassian Platinum Solution Partner status. This is the highest level of partnership awarded by Atlassian and confirms verified delivery capability, certified expertise, and long-term commercial commitment. In addition, vendors must possess the official Atlassian Cloud Specialization badge, which requires formal validation of successful enterprise Cloud migrations.

This analysis is based strictly on publicly available sources, including vendor documentation, official service pages, the Atlassian Partner Directory, and verified third-party reviews accessible as of March 2026.

Because elements such as pricing structures, employee counts, certification renewals, award statuses, and SLA offerings change over time, all claims should be treated as point-in-time references. Enterprise buyers should independently confirm current credentials, support models, compliance certifications, and licensing structures directly through the Atlassian Partner Directory and formal vendor scoping discussions before signing any Statement of Work.

The goal of this report is to provide a structured, evidence-based comparison (not to replace due diligence).

This snapshot isolates the core differentiators that matter in complex Jira migrations involving Marketplace apps and custom scripts. All listed vendors meet the minimum inclusion threshold of Platinum Solution Partner and Cloud Specialization as defined in the evaluation framework .

The following profiles apply the weighted framework to each shortlisted partner. As mentioned, it is based on verifiable public evidence of migration execution, script refactoring, enterprise-scale, compliance posture, and post-migration governance.

Deviniti holds Platinum status as both Atlassian Solution Partner and Atlassian Marketplace Partner. This dual competency directly impacts complex migrations involving proprietary apps, custom scripts, and API level constraints.

The company helps companies get the most out of Jira and Jira Service Management. Deviniti provides complete support across the Atlassian stack – from initial setup, consulting, license management, configuration, cloud migrations, and post-launch support. Atlassian named Deviniti a finalist for Partner of the Year 2024–2025 of Emerging Markets, highlighting its “exceptional innovation” and impact for customers.

Deviniti develops and maintains Marketplace applications used by more than 11 million users. That product engineering background strengthens its ability to refactor Groovy-based automations into Cloud-compliant REST-driven logic. The firm also uses proprietary migration validation scripts to verify issue integrity, field mapping, and configuration consistency during transit.

Enterprises with significant ITSM usage, heavy Marketplace app dependency, and complex custom scripting, particularly in regulated EMEA contexts.

As the creator of ScriptRunner, Adaptavist offers the ScriptRunner Migration Suite, including analysis tooling and automated conversion components. For environments deeply dependent on Groovy scripts, this native product knowledge reduces translation risk.

Global enterprises with heavy ScriptRunner reliance and continuous automation requirements .

Cprime migrated over 35,000 users for PayPal. This scale demonstrates enterprise program management capability and phased execution discipline. The firm also applies its Jira Expressions expertise when translating legacy custom logic.

Large multinational enterprises aligning Cloud migration with SAFe or enterprise transformation initiatives.

Valiantys maintains an explicitly neutral position on proprietary Marketplace apps. For procurement teams prioritizing independence in app consolidation decisions, this neutrality can simplify governance review.

Global regulated enterprises requiring formal SLAs, audit readiness, and structured governance frameworks.

Eficode approaches Atlassian Cloud migration primarily from a DevOps transformation perspective. Rather than focusing only on Jira configuration, the company typically positions migrations as part of a broader modernization of development toolchains, integrating Atlassian platforms with systems such as GitHub, GitLab, and CI/CD pipelines.

European enterprises embedding Jira Cloud within broader CI and CD modernization programs.

Isos aligns Cloud migrations with FedRAMP and HIPAA requirements. It also provides structured Atlassian license management support to navigate public procurement constraints.

US government, education, and healthcare organizations requiring strict regulatory alignment.

Across all six vendors, the primary separation factor is script and app complexity handling. Deviniti and Adaptavist demonstrate the deepest product-level involvement with Marketplace apps and automation frameworks. For migrations where refactoring risk outweighs infrastructure risk, that engineering depth materially influences delivery certainty.

Migrating from Atlassian Data Center to Cloud is more than just a data copy. The primary risk sits in technical debt, meaning custom scripts, app sprawl, and brittle integrations. Buyers should evaluate partners on how they refactor automation, reduce app exposure, and control cutover risk, not on project volume alone.

Data Center scripts commonly run Groovy inside Jira with direct access to internal Java APIs and the database model. Cloud blocks that model and pushes automation to REST APIs and Jira Expressions.

Cloud environments impose strict, non-negotiable execution parameters:

What to demand from vendors: ask for a sanitized runbook that shows how they map Groovy logic to Cloud automation, webhooks, REST calls, or Jira Expressions, including pagination and backoff behavior based on Retry After headers.

Jira Cloud Migration Assistant moves core Jira data, users, and groups. It does not automatically migrate every third-party app configuration or data, and it does not refactor incompatible scripts. Migrated scripts can arrive commented out and inert.

A partner should produce an app decision table for every Marketplace app:

The dataset notes that effective auditing can reduce app waste by up to 25 percent, thereby reducing licensing spend and shrinking the attack surface.

For environments with more than 10,000 users or very large data volumes, a big-bang cutover increases downtime and corruption risk. Phased migration moves business units or project groups in sequence, which keeps operations running and contains user acceptance testing to smaller cohorts.

If a vendor proposes a single cutover, require a rollback plan, a verification plan, and a quantified downtime window. If a vendor proposes phases, require governance for parallel operations and clear exit criteria per phase.

According to a commissioned Forrester Total Economic Impact (TEI) study, organizations that successfully transition to Atlassian Cloud achieve a 155% Return on Investment (ROI) over a three-year period.This phenomenal ROI is driven by accelerating Agile development cycles, maximizing cloud productivity, and completely avoiding the exorbitant hardware and maintenance costs associated with legacy infrastructure. Furthermore, companies report reducing administrative overhead by up to 88% and achieving an average overall IT savings of 20%. 

What to demand from vendors: a financial forecast during assessment that links savings to specific actions, such as app retirement, permission simplification, and governance changes, plus a stabilization plan that prevents cost drift after go-live.

Atlassian Data Center retirement is now a fixed milestone. For enterprises running complex Jira environments, the risk rarely sits in the core data. The risk sits in custom scripts, Marketplace apps, and undocumented automation. These elements break first during Cloud transitions. The partner you select determines whether those dependencies are rebuilt cleanly or become long-term operational friction.