Sigma Software is a part of the leading Scandinavian technology consulting group and one of the world’s TOP100 outsourcing companies, trusted by Fortune 500 Companies and Technology startups.
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We are ISO 9001:2015/27001 certified and a titled Microsoft, AWS, and GCP partner.
Uniting over 2000 IT experts worldwide, we deliver 40+ value-added services, including:
> Turn-key Software Product Development
> Custom Software Solutions and Applications Development
> IT Consulting & Digital Transformation
> Big Data Solutions and Data Engineering Services
> R&D in Extended Reality, Artificial Intelligence, and IoT
> Support & Maintenance
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Our clients choose us for:
> Solutions aligned to the business goals
> Stable delivery with no compromise on quality
> Technology versatility
> Flexibility and full process transparency
Sigma Software is a part of the leading Scandinavian technology consulting group and one of the world’s TOP100 outsourcing companies, trusted by Fortune 500 Companies and Technology startups.
_____
We are ISO 9001:2015/27001 certified and a titled Microsoft, AWS, and GCP partner.
Uniting over 2000 IT experts worldwide, we deliver 40+ value-added services, including:
> Turn-key Software Product Development
> Custom Software Solutions and Applications Development
> IT Consulting & Digital Transformation
> Big Data Solutions and Data Engineering Services
> R&D in Extended Reality, Artificial Intelligence, and IoT
> Support & Maintenance
_____
Our clients choose us for:
> Solutions aligned to the business goals
> Stable delivery with no compromise on quality
> Technology versatility
> Flexibility and full process transparency
AI Overview
Performance snapshot
Sigma Software Group presents a consistently strong performance profile across 18 reviews, with client engagements spanning staff augmentation, custom software development, and web and mobile app delivery. The majority of ratings skew strongly positive, with no recurring negative themes or declining score trends detected. Notable anchor engagements include a multi-year Verizon Media partnership and a grocery delivery platform project that delivered a measurable 12% increase in average order value. Minor cost sub-ratings occasionally fall slightly below perfect scores but do not constitute a pattern of concern.
Performance breakdown
Technical expertise
StrongMultiple reviews cite proficiency across Java, iOS, Android, Flutter, Firebase, Django, Python, and DevOps. The Verizon Media engagement specifically highlighted versatile, fast-moving engineers, and the Checkmarx review praised high-quality development, DevOps, and quality automation deliverables.
Project management & delivery
StrongTimely delivery is referenced across numerous engagements, including the education technology and SaaS advertising platform projects. The aviation company noted seamless integration with internal processes, and Clutch sub-ratings for schedule are consistently 4.5 or 5.0 across reviewed projects.
Communication & collaboration
StrongClients consistently highlight transparent, responsive communication via tools such as Zoom, Slack, Jira, and email. Multiple reviewers describe Sigma's team as a natural extension of their own, and the aviation company noted end customers could not distinguish the external provider from the internal team.
Reliability
StrongLong-duration engagements — some exceeding five years with construction and aviation clients — indicate strong delivery consistency. No reviews cite recurring bugs, missed milestones, or instability. The ad-block recovery and equestrian training clients both praised the team's ability to scale up or down reliably as needed.
Client satisfaction & outcomes
StrongTangible outcomes include a 12% increase in average order value for a grocery delivery platform, a record-breaking pre-order sale for a media production company, and SEO and engagement improvements for a SaaS advertising platform. Willingness-to-refer scores are predominantly 5.0 across all reviewed Clutch engagements.
Best for
Sigma Software Group is best suited for mid-to-large enterprises and growth-stage companies seeking reliable staff augmentation or end-to-end software development across mobile, web, and enterprise platforms, particularly in sectors such as technology, aviation, e-commerce, and media.
Clients info
Sigma Software Group serves clients across technology, media, education, food and beverage, aviation, financial services, and construction sectors. Client size ranges from small startups and founder-led companies to enterprise organizations such as Verizon Media and Checkmarx, which employs 501–1,000 people. Project budgets span from under $10,000 for focused web work to multi-million-dollar long-term staff augmentation engagements. Primary industries represented include Information Technology, Media & Entertainment, Aviation, Education Technology, Food & Beverage / E-Commerce, Financial Services, Construction. Typical client size bands include 1–10 Employees, 11–50 Employees, 51–200 Employees, 501–1,000 Employees. Common project budget ranges include Less than $10,000, $10,000 to $49,999, $50,000 to $199,999, $200,000 to $999,999, $1,000,000 to $9,999,999.
Review strength
The assessment is based on 18 reviews sourced from 2 platforms, spanning from April 2020 to December 2025. The majority of reviews are recent and within the last three years, providing a reliable and current picture of vendor performance. A small number of reviews from 2020 and 2021 are more than three years old but are consistent in tone with recent submissions. Review date range: Apr 23, 2020 - Dec 11, 2025.
Performance breakdown
Technical expertise
StrongMultiple reviews cite proficiency across Java, iOS, Android, Flutter, Firebase, Django, Python, and DevOps. The Verizon Media engagement specifically highlighted versatile, fast-moving engineers, and the Checkmarx review praised high-quality development, DevOps, and quality automation deliverables.
Project management & delivery
StrongTimely delivery is referenced across numerous engagements, including the education technology and SaaS advertising platform projects. The aviation company noted seamless integration with internal processes, and Clutch sub-ratings for schedule are consistently 4.5 or 5.0 across reviewed projects.
Communication & collaboration
StrongClients consistently highlight transparent, responsive communication via tools such as Zoom, Slack, Jira, and email. Multiple reviewers describe Sigma's team as a natural extension of their own, and the aviation company noted end customers could not distinguish the external provider from the internal team.
Reliability
StrongLong-duration engagements — some exceeding five years with construction and aviation clients — indicate strong delivery consistency. No reviews cite recurring bugs, missed milestones, or instability. The ad-block recovery and equestrian training clients both praised the team's ability to scale up or down reliably as needed.
Client satisfaction & outcomes
StrongTangible outcomes include a 12% increase in average order value for a grocery delivery platform, a record-breaking pre-order sale for a media production company, and SEO and engagement improvements for a SaaS advertising platform. Willingness-to-refer scores are predominantly 5.0 across all reviewed Clutch engagements.