We are here to help you Grow

Sigma Ridge is a spinoff from the Harvard University Graduate Consulting Club
We focus on helping our clients achieve their organizations' strategic goals.


  • Growth Strategy
  • Corporate Strategy
  • Go To Market Strategy 
  • Production Strategy 
  • Financial Strategy
  • Organizational Strategy
  • Business Intelligence
  • Strategic Planning
  • Leadership Assessment &  Alignment
  • Board Development
  • Big Data, Business Intelligence : Tableau & Microsoft Power BI
  • Exit Strategy

Sales & Marketing

  • CRM Design and Implementation
  • Go To Market Strategy 
  • Product Lifecycle
  • Sales Enablement
  • Sales Process & Analytics
  • Digital Marketing
  • Paid Search (PPC) & Social
  • SEO & Website Analytics
  • Programmatic Display & Video
  • Full Marketing Automation
  • Amazon Sales


  • Business & Process Assessment Design 
  • Organizational Design
  • Operational Efficiency
  • Process Modeling & Statistical Analysis
  • Process Automation
  • Tactical Design & Documentation
  • Supply Chain Simulation & Optimization
  • G&A Optimization


  • Cost Reduction
  • Financial Modeling 
  • FP&A 
  • Budgeting
  • Forecasting
  • Reporting
  • Metrics
  • Investment NPV and ROI

IT Services

  • Cloud Migration
  • Backup & Disaster Recovery
  • Managed IT Services
  • Security
  • Ransomware
  • 24/7 Worldwide Support
  • Networking Monitoring
  • Voice & Collaboration
  • IT-Business Consulting Assessments
  • Data & Application Virtualization

Marketing as a service

Marketing is an extremely important function of your business. Today's marketing has become increasingly complex with many moving parts like: Data Science, Systems and IT, Statistical analysis, Financial Analysis. Why not outsource it to professionals that are subject matter experts. You don't do your own accounting, why do your own Marketing?

Monthly Plans

using the right channel

2:1 Return
Two to one ratio is the average return on Google Ads. That is usually NOT good enough for a business when taking COGS into consideration. We set our KPIs based on your business objectives.
83% of Women
Pinterest reaches 83 percent of US women aged 25-54
2.4 Billion
Facebook has 2.4 Billion users per month. This makes it one of today's preferred marketing channels.
64% of 18-29 year olds use Instagram

Some Marketing facts

80% of accounts follow a business on Instagram
30% of internet users use Facebook more than once a day
Google Ads convert 50% better than organic search results
High-income and educated US households are twice as likely to use Pinterest.

Featured projects

Team of experts combining marketing, management, and consulting

Who we are

We are a team of individuals with over a hundred years of combined marketing, management and consulting experience. We have helped many of our clients increase revenue, profits, and to obtain a competitive advantage in their market.

We are a selective team and unfortunately we do not take all client engagements. We only work with organizations where we truly believe we can make a difference. We work by doing a free exploratory call or site visit. We, then make a decision on whether or not to take on a project or engagement. If we cannot help you, we can usually recommend someone that can.

We look forward to working with you and your team!

about The founder

Sales and Marketing Consultant

Alexander Sierra has a diverse background. He started his career at an early age, in sales. He continued to work while going to school until he obtained his Bachelor in Aerospace Engineering from the University of Florida. Where he worked as a researcher for NASA and the U.S. Military. He worked on the testing and design of Micro Air Vehicles used in surveillance and battle damage assessment. After graduation, he moved back to Boston where he worked at an MIT startup where he was quickly promoted to Sales and Operations Manager. He then obtained his MBA at the University of Massachusetts -Dartmouth-, while working as a Manufacturing Industry Consultant with the world’s largest machine manufacturer. In 2010, he joined the Harvard Graduate Consulting Club (HGCC) while he was earning a Masters in Finance from Harvard University. What will eventually become Sigma Ridge, started as a spinoff of the HGCC. Since then, he has consulted or been employed by startups and billion dollar organizations and has managed operations in 13 different countries with 125 direct reports. This diverse background has enabled him to gather abundant experience, which has helped make Sigma Ridge and its clients successful.

"Most SMBs (Small and Medium Size Business) are created with a service or product that has enormous potential, but only under the right business strategy and execution. SMB’s CEOs and business owners are usually very smart and driven: engineers, inventors, business owners and leaders, but they often lack the necessary knowledge to take their business to the next level. This business expertise is hard and expensive to find. And, while experience can help, the right background and education can be far more effective and efficient in developing and executing a growth, or turnaround strategy.

Most SMBs lack a formal and measurable business strategy for the short and long term. And, nearly all of them could use some guidance with their strategic, tactical and marketing initiatives. This is where Sigma Ridge thrives: Complementing the potential of our select clients to take their business to the next level."

Harvard Business School
NASA Researcher
Our mission is to enjoy what we do while creating value for our partners, through; passion, honesty, and dedication.
OUr differentiator
Customer Service is our thing. Our strategy consists of focusing on a long term partnership with all of our clients and vendors. We leverage our company values: honesty, friendliness, happiness, humor, respect and professionalism. We think there is a lot more to this life than the bottom line. While profit is important we believe that long term success hinges on making every interaction with our team a positive experience knowing that all of us rather hear the truth than what we want to hear.
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158 W 27th Street, 6th Floor
New York, NY 10001

Phone: 929-320-0010