The global wedding industry has seen considerable growth and transformation over the years, especially within the realm of wedding invitations. This key component of matrimonial ceremonies has steadily evolved, with countless companies sprouting up to cater to this niche market. To better understand the industry's trajectory and current state, an exhaustive analysis was conducted, revealing considerable insights into patterns and trends that are shaping this sector.

Traditionally, wedding invitations were a largely print-centric affair, with established print shops dominating the scene. Their command over traditional printing techniques like letterpress, engraving, and thermography was undisputed. But as we moved further into the era of digital technology, the landscape shifted dramatically. The rise of e-invitations, graphic designing tools, and digital printing methods have all significantly altered the industry's dynamics.

At the epicentre of this transformation are wedding invitation companies, straddling the line between traditional craftsmanship and modern technology. As per the latest industry reports, companies are increasingly adopting hybrid models of operation, merging digital convenience with tactile luxury. This allows them to deliver both traditional paper invites and e-invitations, thereby appealing to a wider customer base with varied preferences.

The geographical distribution of these companies is also worth noting. While North America and Europe have been the traditional powerhouses in this industry, Asia, especially India and China, have recently emerged as significant players. This shift is primarily attributed to the rapid urbanization and increasing spending power in these regions, coupled with the cultural importance accorded to weddings.

One cannot discuss the industry's trajectory without addressing the role of ecological concerns. As sustainability becomes a guiding principle for many couples, wedding invitation companies are being spurred towards ecologically conscious practices. The use of recycled paper, soy-based inks, and carbon-neutral shipping methods are just a few examples of how the industry is responding to this global imperative.

From an economic perspective, the industry's revenue projections shed light on its robust health. Globally, the wedding invitation industry is expected to reach unprecedented levels in the next five years, propelled by rising disposable incomes and an increasing emphasis on personalized wedding experiences.

However, it's important to note that this economic growth isn't uniform. The Pareto Principle, often referred to as the 80/20 rule, seems to apply here. A small fraction of companies, those that have successfully harnessed the power of technology and responded to changing consumer preferences, are garnering the lion's share of profits.

From a market competition standpoint, the industry exhibits both monopolistic and oligopolistic tendencies. Few companies have a large market share due to their early entry into the market, brand recognition, and expansive product range. However, the relatively low barriers to entry have allowed numerous small and medium enterprises to thrive, contributing to the industry's overall diversity.

In conclusion, the wedding invitation industry stands at an exciting crossroads of tradition and innovation. It's a dynamic and growing field, responding to shifts in consumer behaviour, technological advancements, and global concerns. The agility and adaptability of these companies will undoubtedly define their success in the coming years. As observers, we look forward to tracing this trajectory and drawing more insights from it.