NEW YORK (TheStreet) -- It's no secret the tech industry is constantly evolving and generating revenue.

While the NASDAQ is only up a modest 4.3% for 2014, it's up by nearly 35% compared to a year ago. Sure, not every investment is worth throwing your hard-earned cash at, but there are many that are worth a look. With that said, here are six investments you should keep an eye on or invest in before it's too late.

Yelp (YELP) - Get Yelp Inc Report

YELP, a website where consumers can share feedback on their experiences at places like restaurants and even churches, has more than 33 million reviews written on it (a 45 % increase from 2011). The company expects to see a 52% growth over Q1 of 2013.

Analysts at Trefis state a large portion of the company's growth is a result of increasing its focus on local advertising, and leveraging the impact of inbound marketing. This growth is expected to increase in the next few years to include various international markets.

The forecast for the next 12 months indicates a median target of $88, with an estimated high of $110 and a low estimate of $62.00. Shares closes on Thursday at $97.80, having gained 42% in 2014.

KEYW Holding (KEYW) - Get KEYW Holding Corporation Report

When it comes to national defense, the government, and you, cybersecurity is one of the biggest risks and worries. Of the many companies addressing the issue, KEYW Holding has experienced significant growth. Leonard Moodispaw, Founder and CEO, states saleswill double by 2015 to reach $500 million (in comparison to 2012), and he may just be right. The company has demonstrated a 49.99% increase for 2014 to date.

Analysts at Insider Monkey expect a sales growth of 15% in 2014, with the company growing its earnings by 295%. Although the government has recently cut spending because of the debt problems it faces, the need for cybersecurity products isn't disappearing any time in the near future, allowing the company to thrive.

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Shares closed on Thursday at $22.02, up 64% on the year.

SolarWinds (SWI) - Get SolarWinds Corp. Report

Founded in 1999, SolarWinds provides powerful and affordable IT monitoring and management software to more than 100,000 customers around the world. Yahoo Finance recently published the company's 2013 year-end results, which included a 32% year-over-year growth in total revenue. It also projected a stable 26% to 29% growth in the first quarter of 2014 over the first quarter of 2013.

Right now SolarWinds is a good buy, as shares are relatively affordable, and it shows particular signs of growth.

Verizon (VZ) - Get Verizon Communications Inc. Report

As the biggest Internet and communications provider in the U.S., Verizon is certainly a company that warrants your attention. Not only that, but a recent closing of a long-lasting agreement with Vodafone Group (former co-owner) eliminates any questions about its ownership and allows it to start improving its operations.

One of its most recently released services, Fios Internet, will become more popular as people continue to use a range of devices to get online access. Fios TV, another relatively new service, is also gaining popularity as people can view their favorite TV programs and movies from anywhere on any device. If Verizon continues to keep up with the times and expand its list of services, it's likely to keep up its earnings.

Verizon, which has lost 3.4% in 2014, closed on Thursday at $47.46.

Whether it's in a small company or a big one, there's plenty of hot tech to keep an eye on today. Buy in at the right time and you might cash out with more than you expected. That said, what are the tech companies on your watch list?

This article represents the opinion of a contributor and not necessarily that of TheStreet or its editorial staff.