More than a vendor. A true partner in AI development.
At Sigma, we believe great AI starts with great service. That means listening deeply, adapting fast, and delivering exceptional human expertise — no matter the complexity of your project or the pace of your roadmap.
For more than 30 years, we’ve helped pioneering organizations train the next generation of AI systems by providing not just accurate data, but intelligent, responsive, high-touch support.
We don’t take shortcuts. We don’t default to templates. We build every engagement around your exact needs — because your data deserves it.
Tailored teams, processes, and tools — built around you
Every annotation project is different. So is every Sigma solution.
We begin with a deep discovery process that aligns your goals with the optimal combination of:
- People (curated by domain, language, and skill set)
- Tools (yours, ours, or customized open-source solutions)
- Processes (built for your data flow, review cycles, and privacy model)
Whether you need rapid turnaround or high-complexity annotation across modalities, we design workflows that balance efficiency, quality, and risk management — and evolve with your needs.
→ Learn more: Your GenAI data roadmap: 5 strategies for success
Dedicated project leadership — because communication matters
You’ll never wonder who’s managing your project. Every Sigma client gets a dedicated project manager backed by an experienced operations team. We act as:
- Your annotation strategy lead
- Your workflow escalation partner
- Your direct channel to annotators, tool developers, and QA reviewers
Through daily standups, iterative feedback, and performance transparency, we bring visibility and partnership to every phase of execution.
→ Learn more: How to scale data annotation with an effective strategy
Innovation that comes from experience
Our team includes some of the most experienced professionals in the annotation industry, having built:
- The first large-scale collaborative annotation tools in the 1990s
- ML- and DSP-assisted labeling platforms before GenAI was mainstream
- Custom workflows and secure infrastructure for global leaders in finance, healthcare, and public sector AI
Since founding Sigma in 2008, our mission has been to evolve alongside AI — improving throughput, quality, and ethical guardrails with every project.
→ Learn more: GenAI: challenges and opportunities
More than experience. Proven impact.
When clients partner with Sigma, they get:
- An agile, proactive team that adapts to shifting AI objectives
- Transparent guidance on annotation strategies, even mid-project
- Tooling and infrastructure tailored to your ecosystem and goals
- Annotation teams trained, briefed, and supported — not crowdsourced
→ Learn more: Human data annotation: Behind the scenes of quality GenAI
We’re proud to earn your trust
Clients bring us their most complex challenges because they know we care about the details — and the outcomes. From annotation efficiency to annotation ethics, from technical edge cases to strategic pivots, our job is to help you succeed.
And we love what we do.