Business phone system for human resources consulting firms in Missouri

Human resources consulting firms in Missouri by the numbers

The Census Bureau counted 117 human resources consulting firms in Missouri in its 2023 County Business Patterns (NAICS 541612). They employed 1,357 people in mid-March and reported $130.6 million in annual payroll. That is the 21st highest count among the 51 states and DC with published figures. Human resources consulting firms make up 0.08% of the 151,475 business establishments in the state.

Per 100,000 residents (2024 estimate) Missouri has 1.9 human resources consulting firms, 25.3% below the national rate of 2.5. The average establishment has 11.6 employees against 15.7 nationally. Payroll per employee is $96,222, in line with the U.S. figure of $96,006.

Missouri's largest markets for human resources consulting firms

Census published HR consulting firm counts for 4 metro or micropolitan areas that include part of Missouri. The largest is Kansas City, MO-KS, with 83 establishments (a multi-state area; its count covers every state it spans). Single-state metro and micropolitan areas account for 2.6% of the statewide total; the rest are outside any published area or in areas Census suppressed.

Team sizes at human resources consulting firms in Missouri

72.4% of Missouri's human resources consulting firms with employees had fewer than five people in March 2023, compared with 74.5% nationally. 83.6% had fewer than ten. At that size the phone is shared, so routing (who rings, when, and what happens after hours) matters more than the number of desk phones.

Why the phone matters for human resources consulting firms in Missouri

HR consultants are often the first call when an employer faces a personnel issue, so clients expect a quick response. Those calls can involve sensitive information that should go to the right person directly.

Typical inbound and outbound calls for human resources consulting firms in Missouri:

• A business owner calls about an employee complaint.
• A client calls for help with a handbook update.
• The firm calls a client to schedule a training session.

What human resources consulting firms text about

Firms text scheduling details while keeping personnel matters to calls and secure documents.

Texting from a local number in Missouri requires carrier registration (10DLC), a one-time $49 fee on Callata.

What a phone system costs a HR consulting firm in Missouri

Human resources consulting firms in Missouri average 11.6 employees, so the comparison uses a 12-person team. On a per-user plan that headcount sets the bill: $299.40 a month on Ooma Office Pro or $360.00 on RingCentral RingEX Core at list price (checked September 28, 2026). Callata comes to $239.00 a month for 12 users ($99 a month with 5 users included, then $20 per additional user), below both.

Over a year, that is $1,452 less than RingCentral for a HR consulting firm in Missouri of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.

Area codes in Missouri

Missouri has 9 geographic area codes in service according to NANPA. Callata includes up to 3 local numbers, so a HR consulting firm can hold a number in more than one of them.

How Callata works for human resources consulting firms in Missouri

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

Porting a number you already use in Missouri is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.