ONT · Onterris, Inc.
Onterris, Inc. operates as an environmental services company in the United States, Australia, Canada, and internationally. It operates in three segments: Assessment, Permitting and Response; Measurement and Analysis; and Remediation and Reuse. The company offers scientific advisory and consulting services to support environmental assessments, environmental emergency response and recovery, toxicology consulting and environmental audits and permits for current operations, facility upgrades, new projects, decommissioning projects and development projects. It also provides environmental testing and laboratory services, including source and ambient air testing and monitoring, leak detection, and advanced multi-media laboratory services, including air, soil, stormwater, wastewater and drinking water analysis; and engineering, design, and implementation services comprising treatment technologies which treat contaminated water or soil remediation. The company serves oil and gas, utilities, local, state, provincial and federal government entities, technical services, industrial manufacturing, transportation, chemicals, renewable energy generation, telecommunications, and engineering industries. The company was formerly known as Montrose Environmental Group, Inc. and changed its name to Onterris, Inc. in May 2026. The company was founded in 2012 and is headquartered in North Little Rock, Arkansas.
Cap structure and valuation
| Cap structure | |
|---|---|
| SP | $15.53 |
| SO | 36.1M |
| Options | 2.4M |
| Warrants | 0.0M |
| FD SO | 38.5M |
| MC | $598.6M |
| Cash | $10.0M |
| Total debt | $243.9M |
| EV | $832.5M |
| TTM Multiples | |
|---|---|
| EV / Revenue | 1.0x |
| EV / EBITDA | 12.5x |
| MC / Net Income | 102.7x |
| EV / FCF | 11.6x |
| MC / FCF | 8.4x |
MC = SP × FD SO. EV = MC + Debt − Cash. SP = previous yfinance close. Balance-sheet figures as of 2026-05-01. Multiples use TTM (sum of last 4 quarters); shown as "—" when the denominator is zero or negative.
Financial statements
| 3/31/26 | 12/31/25 | 9/30/25 | 6/30/25 | |
|---|---|---|---|---|
| Total Revenue | 168.52 | 193.27 | 224.89 | 234.54 |
| Revenue YoY % | (5.2%) | 2.2% | 25.9% | 35.3% |
| Cost of Revenue | 101.47 | 118.70 | 136.28 | 132.80 |
| Gross Profit | 67.05 | 74.57 | 88.60 | 101.74 |
| Gross Profit YoY % | (3.4%) | (3.3%) | 21.2% | 46.9% |
| Gross Margin % | 39.8% | 38.6% | 39.4% | 43.4% |
| SG&A | 61.32 | 65.19 | 65.70 | 73.68 |
| Operating Expense | 73.11 | 77.15 | 78.67 | 86.80 |
| Operating Income | (6.06) | (2.58) | 9.94 | 14.94 |
| Operating Income YoY % | 42.7% | 88.7% | 955.9% | 663.6% |
| Operating Margin % | (3.6%) | (1.3%) | 4.4% | 6.4% |
| EBITDA | 6.57 | 9.32 | 22.89 | 27.70 |
| EBITDA Margin % | 3.9% | 4.8% | 10.2% | 11.8% |
| Interest Expense | (5.47) | (4.70) | (5.04) | (4.77) |
| Pretax Income | (10.39) | (7.29) | 15.66 | 19.34 |
| Tax Provision | 2.30 | 0.92 | 7.28 | 0.99 |
| Net Income | (12.69) | (8.22) | 8.38 | 18.36 |
| Net Margin % | (7.5%) | (4.3%) | 3.7% | 7.8% |
| Diluted EPS | -$0.35 | -$0.22 | $0.21 | $0.42 |
| Basic EPS | -$0.35 | -$0.23 | $0.24 | $0.48 |
| Diluted Avg Shares | 36.0 | -4.4 | 39.9 | 43.5 |
| Basic Avg Shares | 36.0 | 0.1 | 35.3 | 35.2 |
| LTM | 12/31/25 | 12/31/24 | 12/31/23 | 12/31/22 | |
|---|---|---|---|---|---|
| Total Revenue | 821.22 | 830.54 | 696.39 | 624.21 | 544.42 |
| Revenue YoY % | (1.1%) | 19.3% | 11.6% | 14.7% | — |
| Cost of Revenue | 489.25 | 496.19 | 418.19 | 383.90 | 351.88 |
| Gross Profit | 331.97 | 334.35 | 278.20 | 240.31 | 192.53 |
| Gross Profit YoY % | (0.7%) | 20.2% | 15.8% | 24.8% | — |
| Gross Margin % | 40.4% | 40.3% | 39.9% | 38.5% | 35.4% |
| SG&A | 265.90 | 270.81 | 261.63 | 222.86 | 176.29 |
| Operating Expense | 315.73 | 322.62 | 314.92 | 268.73 | 220.55 |
| Operating Income | 16.24 | 11.72 | (36.72) | (28.42) | (28.01) |
| Operating Income YoY % | 38.5% | 131.9% | (29.2%) | (1.5%) | — |
| Operating Margin % | 2.0% | 1.4% | (5.3%) | (4.6%) | (5.1%) |
| EBITDA | 66.49 | 62.64 | 16.04 | 17.36 | 19.47 |
| EBITDA Margin % | 8.1% | 7.5% | 2.3% | 2.8% | 3.6% |
| Interest Expense | (19.97) | (19.57) | (15.86) | (7.79) | (5.24) |
| Pretax Income | 17.32 | 11.22 | (54.32) | (31.84) | (29.57) |
| Tax Provision | 11.50 | 12.06 | 8.00 | (0.98) | 2.25 |
| Net Income | 5.83 | (0.84) | (62.31) | (30.86) | (31.82) |
| Net Margin % | 0.7% | (0.1%) | (8.9%) | (4.9%) | (5.8%) |
| Diluted EPS | $0.06 | -$0.14 | -$2.22 | -$1.57 | -$1.62 |
| Basic EPS | $0.14 | -$0.14 | -$2.22 | -$1.57 | -$1.62 |
| Diluted Avg Shares | 36.0 | 35.1 | 33.1 | 30.1 | 29.7 |
| Basic Avg Shares | 36.0 | 35.1 | 33.1 | 30.1 | 29.7 |
| 3/31/26 | 12/31/25 | 9/30/25 | 6/30/25 | |
|---|---|---|---|---|
| Cash & Equivalents | 10.05 | 11.22 | 6.74 | 10.48 |
| Receivables | 117.61 | 155.38 | 165.31 | 160.00 |
| Total Current Assets | 216.64 | 240.39 | 255.98 | 260.92 |
| Net PPE | 66.06 | 63.85 | 62.95 | 61.12 |
| Goodwill | 466.56 | 466.79 | 469.02 | 468.98 |
| Total Assets | 948.02 | 981.30 | 985.68 | 998.08 |
| Accounts Payable | 26.44 | 34.81 | 28.53 | 35.64 |
| Total Current Liabilities | 117.63 | 168.00 | 154.35 | 146.76 |
| Long-term Debt | 310.14 | 277.06 | 302.42 | 264.56 |
| Total Liabilities | 507.93 | 530.12 | 526.96 | 494.02 |
| Retained Earnings | (286.20) | (273.51) | (265.30) | (273.67) |
| Total Equity | 440.09 | 451.18 | 458.72 | 470.27 |
| LTM | 12/31/25 | 12/31/24 | 12/31/23 | 12/31/22 | |
|---|---|---|---|---|---|
| Cash & Equivalents | 10.05 | 11.22 | 12.94 | 23.24 | 89.83 |
| Receivables | 117.61 | 155.38 | 158.88 | 112.36 | 94.71 |
| Total Current Assets | 216.64 | 240.39 | 238.00 | 200.92 | 247.93 |
| Net PPE | 66.06 | 63.85 | 63.78 | 56.83 | 36.05 |
| Goodwill | 466.56 | 466.79 | 467.79 | 364.45 | 323.87 |
| Total Assets | 948.02 | 981.30 | 990.35 | 816.79 | 791.91 |
| Accounts Payable | 26.44 | 34.81 | 33.42 | 31.05 | 25.35 |
| Total Current Liabilities | 117.63 | 168.00 | 158.66 | 126.29 | 111.44 |
| Long-term Debt | 310.14 | 277.06 | 204.82 | 148.99 | 152.49 |
| Total Liabilities | 507.93 | 530.12 | 451.16 | 342.61 | 325.80 |
| Retained Earnings | (286.20) | (273.51) | (272.67) | (210.36) | (179.50) |
| Total Equity | 440.09 | 451.18 | 446.26 | 321.25 | 313.19 |
| 3/31/26 | 12/31/25 | 9/30/25 | 6/30/25 | |
|---|---|---|---|---|
| Net Income | (12.69) | (8.22) | 8.38 | 18.36 |
| D&A | 12.63 | 11.90 | 12.96 | 12.76 |
| Stock-Based Comp | 9.07 | 8.94 | 9.22 | 10.83 |
| Operating Cash Flow | (11.64) | 51.93 | 28.15 | 21.89 |
| CapEx | (5.67) | (5.38) | (5.82) | (1.96) |
| Investing Cash Flow | (5.53) | (3.24) | (4.67) | (4.23) |
| Stock Buyback | (10.00) | — | — | — |
| Dividends Paid | 0.00 | 0.00 | (1.40) | 0.00 |
| Financing Cash Flow | 15.94 | (43.88) | (27.98) | (37.22) |
| Free Cash Flow | (17.30) | 46.55 | 22.33 | 19.93 |
| LTM | 12/31/25 | 12/31/24 | 12/31/23 | 12/31/22 | |
|---|---|---|---|---|---|
| Net Income | 5.83 | (0.84) | (62.31) | (30.86) | (31.82) |
| D&A | 50.25 | 50.91 | 52.76 | 45.78 | 47.48 |
| Stock-Based Comp | 38.07 | 42.72 | 64.67 | 47.27 | 43.29 |
| Operating Cash Flow | 90.33 | 107.48 | 22.23 | 56.02 | 20.65 |
| CapEx | (18.83) | (16.32) | (21.33) | (29.58) | (9.58) |
| Investing Cash Flow | (17.66) | (15.84) | (138.04) | (101.62) | (38.69) |
| Stock Issuance | — | — | 121.78 | — | — |
| Dividends Paid | (1.40) | (4.15) | (11.06) | (16.40) | (16.40) |
| Financing Cash Flow | (93.14) | (93.12) | 106.00 | (20.11) | (38.76) |
| Free Cash Flow | 71.50 | 91.16 | 0.90 | 26.44 | 11.07 |
| 3/31/26 | 12/31/25 | 9/30/25 | 6/30/25 | |
|---|---|---|---|---|
| Current Ratio | 1.84 | 1.43 | 1.66 | 1.78 |
| Quick Ratio | — | — | — | — |
| Debt / Equity | 1.15 | 1.17 | 1.15 | 1.05 |
| EBITDA Margin % | 3.9% | 4.8% | 10.2% | 11.8% |
| Working Capital | 99.01 | 72.39 | 101.62 | 114.16 |
| Net Debt | 300.09 | 265.84 | 295.68 | 254.07 |
| ROE % | (2.9%) | (1.8%) | 1.8% | 3.9% |
| ROA % | (1.3%) | (0.8%) | 0.8% | 1.8% |
| LTM | 12/31/25 | 12/31/24 | 12/31/23 | 12/31/22 | |
|---|---|---|---|---|---|
| Current Ratio | 1.84 | 1.43 | 1.50 | 1.59 | 2.22 |
| Quick Ratio | — | — | — | — | — |
| Debt / Equity | 1.15 | 1.17 | 1.01 | 1.07 | 1.04 |
| EBITDA Margin % | 8.1% | 7.5% | 2.3% | 2.8% | 3.6% |
| Working Capital | 99.01 | 72.39 | 79.34 | 74.64 | 136.49 |
| Net Debt | 300.09 | 265.84 | 191.88 | 125.75 | 62.67 |
| ROE % | 1.3% | (0.2%) | (14.0%) | (9.6%) | (10.2%) |
| ROA % | 0.6% | (0.1%) | (6.3%) | (3.8%) | (4.0%) |
Insider activity (last 2 years)
| Date Filed | Reporter | Relationship | Trans. Date | Code | Shares | Price | Total Value |
|---|---|---|---|---|---|---|---|
| 2026-05-12 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-05-11 | M | 27,349 | $6.03 | $164,914 |
| 2026-05-12 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-05-11 | M | (27,349) | — | $-0 |
| 2026-05-12 | Dicks Allan | Officer (Chief Financial Officer) | 2026-05-11 | P | 6,535 | $15.36 | $100,378 |
| 2026-03-16 | Manthripragada Vijay | Director, Officer (President & CEO) | 2026-03-13 | M | 33,166 | $6.03 | $199,991 |
| 2026-03-16 | Manthripragada Vijay | Director, Officer (President & CEO) | 2026-03-13 | M | 85,992 | $6.03 | $518,532 |
| 2026-03-16 | Manthripragada Vijay | Director, Officer (President & CEO) | 2026-03-13 | S | (46,121) | $25.41 | -$1,171,935 |
| 2026-03-16 | Manthripragada Vijay | Director, Officer (President & CEO) | 2026-03-13 | M | (33,166) | — | $-0 |
| 2026-03-16 | Manthripragada Vijay | Director, Officer (President & CEO) | 2026-03-13 | M | (85,992) | — | $-0 |
| 2026-03-16 | PERLMAN RICHARD E | Director | 2026-03-13 | G | (74,461) | — | $-0 |
| 2026-03-13 | Laws James | Officer (Chief Operating Officer) | 2026-03-11 | A | 18,761 | — | $0 |
| 2026-03-11 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-09 | M | 7,858 | $6.03 | $47,384 |
| 2026-03-11 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-09 | S | (7,858) | $27.00 | -$212,166 |
| 2026-03-11 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-09 | M | (7,858) | — | $-0 |
| 2026-03-11 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-04 | M | 42,668 | $6.03 | $257,288 |
| 2026-03-11 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-04 | S | (42,668) | $27.56 | -$1,175,930 |
| 2026-03-11 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-04 | M | (42,668) | — | $-0 |
| 2026-03-11 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-03 | M | 60,000 | $6.03 | $361,800 |
| 2026-03-11 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-03 | S | (60,000) | $28.00 | -$1,680,000 |
| 2026-03-11 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-03 | M | (60,000) | — | $-0 |
| 2026-03-05 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-04 | A | 42,668 | $6.03 | $257,288 |
| 2026-03-05 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-04 | D | (42,668) | $27.56 | -$1,175,930 |
| 2026-03-05 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-04 | M | (42,668) | — | $-0 |
| 2026-03-05 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-03 | A | 60,000 | $6.03 | $361,800 |
| 2026-03-05 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-03 | D | (60,000) | $28.37 | -$1,702,200 |
| 2026-03-05 | Revuelta Jose | Officer (Chief Strategy Officer) | 2026-03-03 | M | (60,000) | — | $-0 |
| 2026-03-04 | Afsari Nasym | Officer (General Counsel and Secretary) | 2026-03-03 | M | 43,348 | $6.03 | $261,388 |
| 2026-03-04 | Afsari Nasym | Officer (General Counsel and Secretary) | 2026-03-03 | S | (43,348) | $28.37 | -$1,229,696 |
| 2026-03-04 | Afsari Nasym | Officer (General Counsel and Secretary) | 2026-03-03 | M | (43,348) | — | $-0 |
| 2026-03-04 | PRESBY J THOMAS | Director | 2026-03-02 | M | 10,000 | $9.76 | $97,600 |
| 2026-03-04 | PRESBY J THOMAS | Director | 2026-03-02 | S | (9,541) | $28.82 | -$274,972 |
| 2026-03-04 | PRESBY J THOMAS | Director | 2026-03-02 | S | (459) | $29.89 | -$13,720 |
| 2026-03-04 | PRESBY J THOMAS | Director | 2026-03-02 | M | (10,000) | — | $-0 |
| 2026-03-04 | Afsari Nasym | Officer (General Counsel and Secretary) | 2026-03-02 | S | (200) | $30.00 | -$6,000 |
| 2026-01-06 | Colman Vincent | Director | 2026-01-01 | A | 4,430 | — | $0 |
| 2026-01-06 | Newmark Robin | Director | 2026-01-01 | A | 4,430 | — | $0 |
| 2026-01-06 | PRESBY J THOMAS | Director | 2026-01-01 | A | 4,430 | — | $0 |
| 2026-01-06 | GRAHAM PETER | Director | 2026-01-01 | A | 4,430 | — | $0 |
| 2026-01-06 | Fernandez de Castro Jose Miguel | Director | 2026-01-01 | A | 4,430 | — | $0 |
| 2026-01-06 | Field Janet Risi | Director | 2026-01-01 | A | 4,430 | — | $0 |
| 2026-01-06 | PERLMAN RICHARD E | Director | 2026-01-01 | A | 4,430 | — | $0 |
| 2026-01-06 | PRICE JAMES K | Director | 2026-01-01 | A | 4,430 | — | $0 |
| 2025-12-19 | Afsari Nasym | Officer (General Counsel and Secretary) | 2025-12-16 | F | (60,813) | $26.40 | -$1,605,463 |
| 2025-12-19 | Dicks Allan | Officer (Chief Financial Officer) | 2025-12-16 | F | (60,813) | $26.40 | -$1,605,463 |
| 2025-12-19 | Revuelta Jose | Officer (Chief Strategy Officer) | 2025-12-16 | F | (46,216) | $26.40 | -$1,220,102 |
| 2025-12-19 | Manthripragada Vijay | Director, Officer (President & CEO) | 2025-12-16 | F | (152,886) | $26.40 | -$4,036,190 |
| 2025-11-12 | Manthripragada Vijay | Director, Officer (President & CEO) | 2025-11-11 | M | 44,984 | $6.03 | $271,254 |
| 2025-11-12 | Manthripragada Vijay | Director, Officer (President & CEO) | 2025-11-11 | S | (44,984) | $24.07 | -$1,082,900 |
| 2025-11-12 | Manthripragada Vijay | Director, Officer (President & CEO) | 2025-11-11 | M | (44,984) | — | $-0 |
| 2025-11-12 | Manthripragada Vijay | Director, Officer (President & CEO) | 2025-11-10 | M | 44,983 | $6.03 | $271,247 |
| 2025-11-12 | Manthripragada Vijay | Director, Officer (President & CEO) | 2025-11-10 | S | (39,799) | $24.63 | -$980,090 |
| 2025-11-12 | Manthripragada Vijay | Director, Officer (President & CEO) | 2025-11-10 | S | (5,072) | $25.62 | -$129,929 |
| 2025-11-12 | Manthripragada Vijay | Director, Officer (President & CEO) | 2025-11-10 | S | (112) | $26.17 | -$2,931 |
| 2025-11-12 | Manthripragada Vijay | Director, Officer (President & CEO) | 2025-11-10 | M | (44,983) | — | $-0 |
| 2025-05-14 | Colman Vincent | Director | 2025-05-13 | P | 2,600 | $18.85 | $49,010 |
| 2025-05-14 | Fernandez de Castro Jose Miguel | Director | 2025-03-06 | P | 10,000 | $18.07 | $180,700 |
| 2025-03-12 | Colman Vincent | Director | 2025-03-11 | A | 5,396 | — | $0 |
| 2025-03-07 | Fernandez de Castro Jose Miguel | Director | 2025-03-06 | A | 10,000 | $18.07 | $180,700 |
| 2025-01-03 | Field Janet Risi | Director | 2025-01-01 | A | 5,929 | — | $0 |
| 2025-01-03 | PRICE JAMES K | Director | 2025-01-01 | A | 5,929 | — | $0 |
| 2025-01-03 | PRESBY J THOMAS | Director | 2025-01-01 | A | 5,929 | — | $0 |
| 2025-01-03 | PERLMAN RICHARD E | Director | 2025-01-01 | A | 5,929 | — | $0 |
| 2025-01-03 | Newmark Robin | Director | 2025-01-01 | A | 5,929 | — | $0 |
| 2025-01-03 | GRAHAM PETER | Director | 2025-01-01 | A | 5,929 | — | $0 |
| 2025-01-03 | Fernandez de Castro Jose Miguel | Director | 2025-01-01 | A | 5,929 | — | $0 |
| 2024-11-25 | PRESBY J THOMAS | Director | 2024-11-21 | A | 5,000 | $19.77 | $98,850 |
| 2024-08-21 | Revuelta Jose | Officer (Chief Strategy Officer) | 2024-08-20 | M | 30,000 | $5.72 | $171,600 |
| 2024-08-21 | Revuelta Jose | Officer (Chief Strategy Officer) | 2024-08-20 | M | (30,000) | — | $-0 |
| 2024-08-21 | Revuelta Jose | Officer (Chief Strategy Officer) | 2024-08-19 | M | 20,000 | $5.72 | $114,400 |
| 2024-08-21 | Revuelta Jose | Officer (Chief Strategy Officer) | 2024-08-19 | M | (20,000) | — | $-0 |
| 2024-05-15 | Dicks Allan | Officer (Chief Financial Officer) | 2024-05-13 | M | 8,332 | $24.00 | $199,968 |
| 2024-05-15 | Dicks Allan | Officer (Chief Financial Officer) | 2024-05-13 | M | (8,332) | — | $-0 |